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Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 _________________________________________

FORM 10-Q

_________________________________________

☑			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2026

OR

☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to

Commission File Number 001-35077

_____________________________________ 

WINTRUST FINANCIAL CORPORATION

(Exact name of registrant as specified in its charter) 

Illinois			36-3873352
(State of incorporation or organization)			(I.R.S. Employer Identification No.)

9700 W. Higgins Road, Suite 800

Rosemont, Illinois 60018

(Address of principal executive offices)

(847) 939-9000

(Registrant’s telephone number, including area code)

Title of Each Class			Ticker Symbol			Name of Each Exchange on Which Registered
Common Stock, no par value			WTFC			The Nasdaq Global Select Market
Depositary Shares, Each Representing a 1/1,000th Interest in a Share of			WTFCN			The Nasdaq Global Select Market
7.875% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series F, no par value

____________________________________ 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☑    No  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ☑    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer

☑

Accelerated filer

☐

Non-accelerated filer

☐

(Do not check if a smaller reporting company)

Smaller reporting company

☐

Emerging growth company

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes   ☐    No  ☑

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

Common Stock — no par value, 67,484,328 shares, as of October 30, 2026

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Table of Contents

TABLE OF CONTENTS

 

						Page
			PART I. — FINANCIAL INFORMATION
ITEM 1.			Financial Statements			1
ITEM 2.			Management’s Discussion and Analysis of Financial Condition and Results of Operations			45
ITEM 3.			Quantitative and Qualitative Disclosures About Market Risk			73
ITEM 4.			Controls and Procedures			75
			PART II. — OTHER INFORMATION
ITEM 1.			Legal Proceedings			75
ITEM 1A.			Risk Factors			75
ITEM 2.			Unregistered Sales of Equity Securities, Use of Proceeds and Issuer Purchases of Equity Securities			76
ITEM 3.			Defaults Upon Senior Securities			NA
ITEM 4.			Mine Safety Disclosures			NA
ITEM 5.			Other Information			76
ITEM 6.			Exhibits			76
			Signatures			77

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Table of Contents

PART I

ITEM 1. FINANCIAL STATEMENTS

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CONDITION
			(Unaudited)												(Unaudited)
(Dollars in thousands, except per share data)			September 30, 2026						December 31, 2025						September 30, 2025
Assets
Cash and due from banks			$	635,592					$	467,874					$	565,406
Federal funds sold and securities purchased under resale agreements			65						64						63
Interest-bearing deposits with banks			3,557,687						3,180,553						3,422,452
Available-for-sale securities, at fair value			7,569,498						6,236,263						5,274,124
Held-to-maturity securities, at amortized cost, net of allowance for credit losses of $213, $260 and $395 at September 30, 2026, December 31, 2025 and September 30, 2025, respectively ($2.4 billion, $2.8 billion and $2.9 billion fair value at September 30, 2026, December 31, 2025 and September 30, 2025, respectively)			3,120,503						3,343,905						3,438,406
Equity securities with readily determinable fair value			64,811						63,770						63,445
Federal Home Loan Bank and Federal Reserve Bank stock			296,171						291,881						282,755
Mortgage loans held-for-sale, at fair value			307,748						340,745						333,883
Loans, net of unearned income			56,804,571						53,105,101						52,063,482
Allowance for loan losses			(401,729)						(379,283)						(386,622)
Net loans			56,402,842						52,725,818						51,676,860
Premises, software and equipment, net			792,205						781,611						775,425
Lease investments, net			363,243						360,646						301,000
Accrued interest receivable and other assets			1,946,561						1,617,682						1,614,674
Receivable on unsettled securities sales			—						835,275						978,209
Goodwill			804,661						797,960						797,639
Other acquisition-related intangible assets			110,033						97,999						105,297
Total assets			$	75,971,620					$	71,142,046					$	69,629,638
Liabilities and Shareholders’ Equity
Deposits:
Non-interest-bearing			$	11,584,695					$	11,423,701					$	10,952,146
Interest-bearing			50,850,521						46,293,490						45,759,235
Total deposits			62,435,216						57,717,191						56,711,381
Federal Home Loan Bank advances			3,450,680						3,451,309						3,151,309
Other borrowings			355,554						477,966						579,328
Subordinated notes			298,903						298,636						298,536
Junior subordinated debentures			253,566						253,566						253,566
Accrued interest payable and other liabilities			1,888,155						1,684,663						1,589,761
Total liabilities			68,682,074						63,883,331						62,583,881
Shareholders’ Equity:
Preferred stock, no par value; 20,000,000 shares authorized:
Series F - $25,000 liquidation value; 17,000 shares issued and outstanding at September 30, 2026, December 31, 2025 and September 30, 2025			425,000						425,000						425,000
Common stock, no par value; $1.00 stated value; 100,000,000 shares authorized at September 30, 2026, December 31, 2025 and September 30, 2025; 67,598,628 shares issued at September 30, 2026, 67,062,182 shares issued at December 31, 2025 and 67,042,228 shares issued at September 30, 2025			67,599						67,062						67,042
Surplus			2,574,253						2,534,024						2,521,306
Treasury stock, at cost, 126,169 shares at September 30, 2026, and 87,269 shares at December 31, 2025 and 81,019 shares at September 30, 2025			(14,897)						(9,156)						(9,150)
Retained earnings			5,101,367						4,537,539						4,356,367
Accumulated other comprehensive loss			(863,776)						(295,754)						(314,808)
Total shareholders’ equity			7,289,546						7,258,715						7,045,757
Total liabilities and shareholders’ equity			$	75,971,620					$	71,142,046					$	69,629,638

See accompanying notes to unaudited consolidated financial statements.

1

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Table of Contents

WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

			Three Months Ended												Nine Months Ended
(Dollars in thousands, except per share data)			September 30, 2026						September 30, 2025						September 30, 2026						September 30, 2025
Interest income
Interest and fees on loans			$	853,299					$	832,140					$	2,474,169					$	2,398,499
Mortgage loans held-for-sale			5,761						4,757						16,545						13,875
Interest-bearing deposits with banks			25,595						34,992						65,661						106,075
Federal funds sold and securities purchased under resale agreements			1						75						70						530
Investment securities			112,273						86,426						318,267						236,495
Trading account securities			—						—						—						11
Federal Home Loan Bank and Federal Reserve Bank stock			5,932						5,444						17,121						16,144
Brokerage customer receivables			—						—						—						78
Total interest income			1,002,861						963,834						2,891,833						2,771,707
Interest expense
Interest on deposits			341,017						355,846						975,237						1,009,549
Interest on Federal Home Loan Bank advances			29,086						26,007						85,005						77,172
Interest on other borrowings			3,430						6,887						10,577						20,636
Interest on subordinated notes			3,721						3,717						11,179						11,166
Interest on junior subordinated debentures			4,003						4,367						11,841						13,006
Total interest expense			381,257						396,824						1,093,839						1,131,529
Net interest income			621,604						567,010						1,797,994						1,640,178
Provision for credit losses			25,879						21,768						78,607						67,965
Net interest income after provision for credit losses			595,725						545,242						1,719,387						1,572,213
Non-interest income
Wealth management			40,967						37,188						122,909						108,051
Mortgage banking			25,532						24,451						76,366						68,150
Service charges on deposit accounts			22,161						19,825						64,371						58,689
(Losses) gains on investment securities, net			(1,621)						2,972						193						6,818
Fees from covered call options			4,585						5,619						14,047						14,689
Trading gains, net			48						172						128						259
Operating lease income, net			18,447						15,466						56,405						45,919
Other			26,154						25,134						77,265						68,975
Total non-interest income			136,273						130,827						411,684						371,550
Non-interest expense
Salaries and employee benefits			230,552						219,668						693,088						650,735
Software and equipment			39,179						35,027						114,121						106,266
Operating lease equipment			11,661						10,409						33,835						31,637
Occupancy, net			19,548						20,809						61,267						61,815
Data processing			11,218						11,329						33,143						34,713
Advertising and marketing			21,806						19,027						55,456						50,060
Professional fees			10,687						7,465						27,404						25,752
Amortization of other acquisition-related intangible assets			4,686						5,196						14,565						16,394
FDIC insurance			12,138						11,418						29,768						33,315
Other real estate owned expense, net			282						262						1,275						1,410
Other			43,908						39,418						121,912						115,482
Total non-interest expense			405,665						380,028						1,185,834						1,127,579
Income before taxes			326,333						296,041						945,237						816,184
Income tax expense			87,279						79,787						245,102						215,364
Net income			$	239,054					$	216,254					$	700,135					$	600,820
Preferred stock dividends			8,367						13,295						25,101						27,277
Preferred stock redemption			—						14,046						—						14,046
Net income applicable to common shares			$	230,687					$	188,913					$	675,034					$	559,497
Net income per common share—Basic			$	3.42					$	2.82					$	10.02					$	8.37
Net income per common share—Diluted			$	3.37					$	2.78					$	9.89					$	8.25
Cash dividends declared per common share			$	0.55					$	0.50					$	1.65					$	1.50
Weighted average common shares outstanding			67,467						66,952						67,383						66,871
Dilutive potential common shares			911						1,028						876						945
Average common shares and dilutive common shares			68,378						67,980						68,259						67,816

See accompanying notes to unaudited consolidated financial statements.

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WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

 

			Three Months Ended												Nine Months Ended
(In thousands)			September 30, 2026						September 30, 2025						September 30, 2026						September 30, 2025
Net income			$	239,054					$	216,254					$	700,135					$	600,820
Unrealized (losses) gains on available-for-sale securities
Before tax			(456,043)						75,521						(538,429)						155,712
Tax effect			118,571						(19,635)						139,991						(40,485)
Net of tax			(337,472)						55,886						(398,438)						115,227
Reclassification of net gains (losses) on available-for-sale securities included in net income
Before tax			—						269						(37)						(119)
Tax effect			—						(70)						9						31
Net of tax			—						199						(28)						(88)
Reclassification of amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale
Before tax			5						10						21						31
Tax effect			(1)						(3)						(5)						(8)
Net of tax			4						7						16						23
Net unrealized (losses) gains on available-for-sale securities			(337,476)						55,680						(398,426)						115,292
Unrealized (losses) gains on derivative instruments
Before tax			(141,357)						4,280						(212,948)						92,317
Tax effect			36,752						(1,112)						55,366						(24,002)
Net unrealized (losses) gains on derivative instruments			(104,605)						3,168						(157,582)						68,315
Foreign currency adjustment
Before tax			(1,069)						(8,997)						(14,510)						12,123
Tax effect			172						1,574						2,496						(2,203)
Net foreign currency adjustment			(897)						(7,423)						(12,014)						9,920
Total other comprehensive (loss) income			(442,978)						51,425						(568,022)						193,527
Comprehensive (loss) income			$	(203,924)					$	267,679					$	132,113					$	794,347

See accompanying notes to unaudited consolidated financial statements.

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WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED)
(Dollars in thousands, except per share data)			Preferred stock						Common stock						Surplus						Treasury stock						Retained earnings						Accumulated other comprehensive loss						Total shareholders’ equity
Balance at June 30, 2025			$	837,500					$	67,025					$	2,495,637					$	(9,156)					$	4,200,923					$	(366,233)					$	7,225,696
Net income			—						—						—						—						216,254						—						216,254
Other comprehensive income, net of tax			—						—						—						—						—						51,425						51,425
Cash dividends declared on common stock, $0.50 per share			—						—						—						—						(33,469)						—						(33,469)
Dividends on Series F preferred stock, $782.03 per share			—						—						—						—						(13,295)						—						(13,295)
Redemption of Series D and Series E preferred stock			(412,500)						—						14,046						—						(14,046)						—						(412,500)
Stock-based compensation			—						—						10,071						—						—						—						10,071
Issuance of Series F Preferred Stock			—						—						(64)						—						—						—						(64)
Common stock issued for:
Restricted stock awards			—						10						(16)						6						—						—						—
Employee stock purchase plan			—						7						839						—						—						—						846
Director compensation plan			—						—						793						—						—						—						793
Balance at September 30, 2025			$	425,000					$	67,042					$	2,521,306					$	(9,150)					$	4,356,367					$	(314,808)					$	7,045,757
Balance at December 31, 2024			$	412,500					$	66,560					$	2,482,561					$	(6,153)					$	3,897,164					$	(508,335)					$	6,344,297
Net income			—						—						—						—						600,820						—						600,820
Other comprehensive income, net of tax			—						—						—						—						—						193,527						193,527
Cash dividends declared on common stock, $1.50 per share			—						—						—						—						(100,294)						—						(100,294)
Dividends on Series D preferred stock, $0.82 per share, Series E preferred stock, $859.38 per share and Series F preferred stock, $782.03 per share			—						—						—						—						(27,277)						—						(27,277)
Redemption of Series D and Series E preferred stock			(412,500)						—						14,046						—						(14,046)						—						(412,500)
Stock-based compensation			—						—						30,646						—						—						—						30,646
Issuance of Series F Preferred Stock			425,000						—						(10,852)						—						—						—						414,148
Common stock issued for:
Exercise of stock options			—						5						215						—						—						—						220
Restricted stock awards			—						435						(441)						(2,997)						—						—						(3,003)
Employee stock purchase plan			—						23						2,588						—						—						—						2,611
Director compensation plan			—						19						2,543						—						—						—						2,562
Balance at September 30, 2025			$	425,000					$	67,042					$	2,521,306					$	(9,150)					$	4,356,367					$	(314,808)					$	7,045,757
Balance at June 30, 2026			$	425,000					$	67,581					$	2,560,427					$	(14,882)					$	4,907,788					$	(420,798)					$	7,525,116
Net income			—						—						—						—						239,054						—						239,054
Other comprehensive loss, net of tax			—						—						—						—						—						(442,978)						(442,978)
Cash dividends declared on common stock, $0.55 per share			—						—						—						—						(37,108)						—						(37,108)
Dividends on Series F preferred stock, $492.19 per share			—						—						—						—						(8,367)						—						(8,367)
Stock-based compensation			—						—						11,889						—						—						—						11,889
Common stock issued for:
Restricted stock awards			—						10						(10)						(15)						—						—						(15)
Employee stock purchase plan			—						8						956						—						—						—						964
Director compensation plan			—						—						991						—						—						—						991
Balance at September 30, 2026			$	425,000					$	67,599					$	2,574,253					$	(14,897)					$	5,101,367					$	(863,776)					$	7,289,546
Balance at December 31, 2025			$	425,000					$	67,062					$	2,534,024					$	(9,156)					$	4,537,539					$	(295,754)					$	7,258,715
Net income			—						—						—						—						700,135						—						700,135
Other comprehensive loss, net of tax			—						—						—						—						—						(568,022)						(568,022)
Cash dividends declared on common stock, $1.65 per share			—						—						—						—						(111,206)						—						(111,206)
Dividends on Series F preferred stock, $1,476.57 per share			—						—						—						—						(25,101)						—						(25,101)
Stock-based compensation			—						—						34,877						—						—						—						34,877
Common stock issued for:
Exercise of stock options			—						2						93						—						—						—						95
Restricted stock awards			—						484						(484)						(5,741)						—						—						(5,741)
Employee stock purchase plan			—						21						2,766						—						—						—						2,787
Director compensation plan			—						30						2,977						—						—						—						3,007
Balance at September 30, 2026			$	425,000					$	67,599					$	2,574,253					$	(14,897)					$	5,101,367					$	(863,776)					$	7,289,546

See accompanying notes to unaudited consolidated financial statements.

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WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

			Nine Months Ended
(In thousands)			September 30, 2026						September 30, 2025
Operating Activities:
Net income			$	700,135					$	600,820
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses			78,607						67,965
Depreciation, amortization and accretion, net			89,052						88,905
Stock-based compensation expense			34,877						30,646
Accretion of discount on securities, net			(29,381)						(4,412)
Accretion of discount and deferred fees on loans, net			(6,063)						(15,092)
Mortgage servicing rights fair value changes			(3,735)						29,684
Non-designated derivatives fair value changes, net			28,313						(9,065)
Originations and purchases of mortgage loans held-for-sale			(2,047,515)						(1,785,392)
Early buy-out exercises of mortgage loans held-for-sale guaranteed by U.S. government agencies, net of subsequent paydowns or payoffs			(54,367)						(15,773)
Proceeds from sales of mortgage loans held-for-sale			2,128,544						1,785,096
Bank owned life insurance (“BOLI”) gains			(5,010)						(4,644)
Decrease in trading securities, net			—						4,072
Decrease in brokerage customer receivables, net			—						18,102
Gains on mortgage loans sold			(39,202)						(49,990)
Gains on investment securities, net, and dividend reinvestment on equity securities			(193)						(6,818)
(Gains) losses on sales of premises and equipment, net			(1,826)						418
Losses on sales and fair value adjustments of other real estate owned, net			230						816
Decrease in accrued interest receivable and other assets, net			521,213						59,739
Increase (decrease) in accrued interest payable and other liabilities, net			146,390						(136,388)
Net Cash Provided by Operating Activities			1,540,069						658,689
Investing Activities:
Proceeds from calls and sales of available-for-sale securities			16,662						705,703
Proceeds from payments and maturities of available-for-sale securities			630,133						402,735
Proceeds from payments, maturities and calls of held-to-maturity securities			223,154						174,383
Proceeds from sales of equity securities with readily determinable fair value			—						226,542
Proceeds from sales and capital distributions of equity securities without readily determinable fair value			3,283						—
Purchases of available-for-sale securities			(2,488,806)						(3,040,628)
Purchases of equity securities with readily determinable fair value			(1,031)						(63,413)
Purchases of equity securities without readily determinable fair value			(5,061)						(1,682)
Purchases of Federal Home Loan Bank and Federal Reserve Bank stock, net			(4,310)						(1,348)
Distributions (contributions) from investments in partnerships, net			5,965						(13,422)
Net cash paid in business combination			(34,097)						—
Proceeds from sales of other real estate owned			6,386						—
(Decrease) increase in interest-bearing deposits with banks, net			(380,563)						994,409
Increase in loans, net			(3,756,736)						(4,017,366)
Redemption of BOLI			337						—
Purchases of premises and equipment, net			(58,667)						(26,921)
Net Cash Used for Investing Activities			(5,843,351)						(4,661,008)
Financing Activities:
Increase in deposit accounts, net			4,718,025						4,199,032
(Decrease) increase in other borrowings, net			(110,236)						33,753
Decrease in Federal Home Loan Bank advances, net			(629)						—
Proceeds from the issuance of preferred stock, net			—						414,148
Redemption of preferred stock			—						(412,500)
Issuance of common shares resulting from the exercise of stock options, employee stock purchase plan and director compensation plan			5,889						5,387
Common stock repurchases for tax withholdings related to stock-based compensation			(5,741)						(2,997)
Dividends paid			(136,307)						(127,571)
Net Cash Provided by Financing Activities			4,471,001						4,109,252
Net Increase in Cash and Cash Equivalents			167,719						106,933
Cash and Cash Equivalents at Beginning of Period			467,938						458,536
Cash and Cash Equivalents at End of Period			$	635,657					$	565,469

See accompanying notes to unaudited consolidated financial statements.

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WINTRUST FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(1) Basis of Presentation

The interim consolidated financial statements of Wintrust Financial Corporation and its subsidiaries (collectively, “Wintrust” or the “Company”) presented herein are unaudited, but in the opinion of management, reflect all necessary adjustments of a normal or recurring nature for a fair presentation of results as of the dates and for the periods covered by the interim consolidated financial statements.

The accompanying interim consolidated financial statements are unaudited and do not include information or footnotes necessary for a complete presentation of financial condition, results of operations or cash flows in accordance with U.S. generally accepted accounting principles (“GAAP”). The interim unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 (“2025 Form 10-K”). Operating results reported for the period are not necessarily indicative of the results which may be expected for the entire year. Reclassifications of certain prior period amounts have been made to conform to the current period presentation.

The preparation of the financial statements requires management to make estimates, assumptions and judgments that affect the reported amounts of assets and liabilities. Management believes that the estimates made are reasonable; however, changes in estimates may be required if economic or other conditions develop differently from management’s expectations. Certain policies and accounting principles inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Management views critical accounting policies to be those which are highly dependent on subjective or complex judgments, estimates and assumptions, and where changes in those estimates and assumptions could have a significant impact on the financial statements. Management currently views the determination of the allowance for credit losses, estimations of fair value, and the valuation and accounting for derivative instruments, as the accounting areas that require the most subjective and complex judgments, and as such could be most subject to revision as new information becomes available. Descriptions of the Company’s significant accounting policies are included in Note (1) “Summary of Significant Accounting Policies” of the 2025 Form 10-K. In preparation of these financial statements, subsequent events were evaluated through the time the financial statements were issued. Financial statements are considered issued when they are widely distributed to all shareholders and other financial statement users or filed with the SEC.

(2) Recent Accounting Developments

Disaggregation of Income Statement Expenses

In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2024-03, “Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses,” which requires public business entities to disclose additional information about specific expense categories including employee compensation, depreciation, intangible asset amortization, etc., as well as qualitative descriptions of certain expenses, in the notes to the financial statements. This guidance is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The guidance is to be applied either prospectively or retrospectively. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Induced Conversions of Convertible Debt Instruments

In November 2024, the FASB issued ASU No. 2024-04, “Debt – Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments” to clarify the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as an induced conversion. The Company adopted ASU No. 2024-04 as of January 1, 2026. Adoption of this standard did not impact the Company’s consolidated financial statements.

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Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity

In May 2025, the FASB issued ASU No. 2025-03, “Business Combinations (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity” which requires an entity involved in an acquisition transaction affected by primarily exchanging equity interests when the legal acquirer is a variable interest entity that meets the definition of a business, to consider specific factors when determining which entity is the accounting acquirer. This guidance is effective for fiscal years beginning after December 15, 2026, including interim periods therein, and is to be applied on a prospective basis to any acquisition transaction that occurs after the initial application date. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Measurement of Credit Losses for Accounts Receivable and Contract Assets

In July 2025, the FASB issued ASU No. 2025-05, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets” which provides public business entities with a practical expedient—and private companies an accounting policy election—when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under Accounting Standards Codification (“ASC”) Topic 606. In developing reasonable and supportable forecasts—if an entity elects the practical expedient—it assumes that current conditions as of the balance sheet date do not change for the remaining life of the assets in scope. The Company adopted ASU No. 2025-05 as of January 1, 2026. Adoption of this standard did not impact the Company’s consolidated financial statements as the Company did not elect the practical expedient.

Targeted Improvements to the Accounting for Internal-Use Software

In September 2025, the FASB issued ASU No. 2025-06, “Intangibles – Goodwill and Other Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software” which removes all references to prescriptive and sequential software development stages, instead requiring capitalization of software costs when management has authorized and committed to funding the software project, and it is probable that the project will be completed and the software will be used to perform the function needed. This guidance is effective for fiscal years beginning after December 15, 2027, including interim periods therein, and can be applied either prospectively, retrospectively, or through a modified transition approach. Early adoption is permitted at the beginning of an annual reporting period. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Derivatives Scope Refinements & Scope Clarification for Share-Based Noncash Consideration

In September 2025, the FASB issued ASU No. 2025-07, “Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606): Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract” which covers two separate issues. Issue 1 adds a scope exception to exclude from derivative accounting non-exchange-traded contracts with underlyings linked to the occurrence or nonoccurrence of an event. Issue 2 clarifies that entities should apply the guidance in ASC 606—on noncash consideration—to a contract with share-based noncash consideration from a customer for the transfer of goods or services. This guidance is effective for fiscal years beginning after December 15, 2026, including interim periods therein, and can be applied either on a prospective or modified retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

Credit Losses - Purchased Loans

In November 2025, the FASB issued ASU No. 2025-08, “Financial Instruments - Credit Losses (Topic 326): Purchased Loans” which expands the population of acquired financial assets subject to the gross-up approach under Topic 326. Loans—excluding credit cards—acquired without credit deterioration and deemed “seasoned” are purchased seasoned loans and accounted for using the gross-up approach at acquisition. The Company early adopted ASU No. 2025-08 as of January 1, 2026. Adoption of this standard did not impact the Company’s consolidated financial statements.

Hedge Accounting Improvements

In November 2025, the FASB issued ASU No. 2025-09, “Derivatives and Hedging (Topic 815): Hedge Accounting Improvements” which clarifies certain aspects of the guidance on hedge accounting and addresses several incremental hedge accounting issues arising from the global reference rate reform initiative. For public business entities, this guidance is effective for fiscal years beginning after December 15, 2026, including interim periods therein, and should be applied on a prospective basis for all hedging relationships. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

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Interim Reporting Scope Improvements

In December 2025, the FASB issued ASU No. 2025-11, “Interim Reporting (Topic 270): Narrow-Scope Improvements” which clarifies interim disclosure requirements and the applicability of Topic 270, resulting in a comprehensive list of interim disclosures required by GAAP. For public business entities, this guidance is effective for fiscal years beginning after December 15, 2027, including interim periods therein, and can be applied either on a prospective or retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new guidance on the consolidated financial statements.

(3) Cash and Cash Equivalents

For purposes of the Consolidated Statements of Cash Flows, the Company considers cash and cash equivalents to include cash on hand, cash items in the process of collection, non-interest bearing amounts due from correspondent banks, federal funds sold and securities purchased under resale agreements with original maturities of three months or less. These items are included within the Company’s Consolidated Statements of Condition as cash and due from banks, and federal funds sold and securities purchased under resale agreements.

(4) Investment Securities

The following tables are a summary of the investment securities portfolios as of the dates shown:

			September 30, 2026
(In thousands)			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Available-for-sale securities
U.S. Treasury			$	3,000					$	—					$	—					$	3,000
U.S. government agencies			50,000						—						(6,169)						43,831
Municipal			171,215						30						(6,921)						164,324
Corporate notes:
Financial issuers			75,000						—						(1,944)						73,056
Other			1,000						—						(38)						962
Mortgage-backed: (1)
Residential mortgage-backed securities			6,928,051						15						(850,890)						6,077,176
Commercial (multi-family) mortgage-backed securities			388,399						—						(28,242)						360,157
Collateralized mortgage obligations			890,442						25						(43,475)						846,992
Total available-for-sale securities			$	8,507,107					$	70					$	(937,679)					$	7,569,498
Held-to-maturity securities
U.S. government agencies			$	313,542					$	—					$	(79,946)					$	233,596
Municipal			133,408						57						(6,709)						126,756
Mortgage-backed: (1)
Residential mortgage-backed securities			2,475,956						—						(611,175)						1,864,781
Commercial (multi-family) mortgage-backed securities			35,838						—						(5,135)						30,703
Collateralized mortgage obligations			153,997						3						(23,998)						130,002
Corporate notes			7,975						—						(293)						7,682
Total held-to-maturity securities			$	3,120,716					$	60					$	(727,256)					$	2,393,520
Less: Allowance for credit losses			(213)
Held-to-maturity securities, net of allowance for credit losses			$	3,120,503
Equity securities with readily determinable fair value			$	62,242					$	7,960					$	(5,391)					$	64,811

(1)None of our mortgage-backed securities are subprime.

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			December 31, 2025
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
(In thousands)
Available-for-sale securities
U.S. Treasury			$	6,999					$	36					$	—					$	7,035
U.S. government agencies			50,000						—						(2,529)						47,471
Municipal			162,373						1,643						(1,850)						162,166
Corporate notes:
Financial issuers			79,000						—						(2,704)						76,296
Other			1,000						—						(1)						999
Mortgage-backed: (1)
Residential mortgage-backed securities			5,533,710						25,926						(402,953)						5,156,683
Commercial (multi-family) mortgage-backed securities			280,969						570						(4,986)						276,553
Collateralized mortgage obligations			521,430						2,305						(14,675)						509,060
Total available-for-sale securities			$	6,635,481					$	30,480					$	(429,698)					$	6,236,263
Held-to-maturity securities
U.S. government agencies			$	313,541					$	—					$	(57,269)					$	256,272
Municipal			144,192						451						(2,012)						142,631
Mortgage-backed: (1)
Residential Mortgage-backed securities			2,667,371						7,503						(491,124)						2,183,750
Commercial (multi-family) mortgage-backed securities			6,293						72						(92)						6,273
Collateralized mortgage obligations			177,671						836						(16,989)						161,518
Corporate notes			35,097						2						(396)						34,703
Total held-to-maturity securities			$	3,344,165					$	8,864					$	(567,882)					$	2,785,147
Less: Allowance for credit losses			(260)
Held-to-maturity securities, net of allowance for credit losses			$	3,343,905
Equity securities with readily determinable fair value			$	61,211					$	6,318					$	(3,759)					$	63,770

(1)None of our mortgage-backed securities are subprime.

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			September 30, 2025
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
(In thousands)
Available-for-sale securities
U.S. Treasury			$	7,997					$	39					$	—					$	8,036
U.S. government agencies			50,000						—						(3,489)						46,511
Municipal			194,723						1,673						(2,152)						194,244
Corporate notes:
Financial issuers			82,000						—						(2,628)						79,372
Other			1,000						—						—						1,000
Mortgage-backed: (1)
Residential mortgage-backed securities			4,761,918						17,519						(419,975)						4,359,462
Commercial (multi-family) mortgage-backed securities			233,127						347						(5,136)						228,338
Collateralized mortgage obligations			371,584						2,373						(16,796)						357,161
Total available-for-sale securities			$	5,702,349					$	21,951					$	(450,176)					$	5,274,124
Held-to-maturity securities
U.S. government agencies			$	313,540					$	—					$	(59,178)					$	254,362
Municipal			155,770						458						(2,283)						153,945
Mortgage-backed: (1)
Residential mortgage-backed securities			2,724,442						5,421						(505,165)						2,224,698
Commercial (multi-family) mortgage-backed securities			6,315						65						(102)						6,278
Collateralized mortgage obligations			188,223						980						(17,400)						171,803
Corporate notes			50,511						26						(653)						49,884
Total held-to-maturity securities			$	3,438,801					$	6,950					$	(584,781)					$	2,860,970
Less: Allowance for credit losses			(395)
Held-to-maturity securities, net of allowance for credit losses			$	3,438,406
Equity securities with readily determinable fair value			$	60,843					$	6,520					$	(3,918)					$	63,445

(1)None of our mortgage-backed securities are subprime.

Equity securities without readily determinable fair values totaled $71.7 million as of September 30, 2026. Equity securities without readily determinable fair values are included as part of accrued interest receivable and other assets in the Company’s Consolidated Statements of Condition. The Company monitors its equity investments without readily determinable fair values to identify potential transactions that may indicate an observable price change in orderly transactions for the identical or a similar investment of the same issuer, requiring adjustment to its carrying amount. During the three and nine months ended September 30, 2026, the Company recorded no upward or downward adjustments related to such observable price changes. During the three months ended September 30, 2025, the Company recorded no adjustment related to such observable price changes. During the nine months ended September 30, 2025, the Company recorded no upward adjustment and a downward adjustment of $20,000 related to such observable price changes. The Company conducts a quarterly assessment of its equity securities without readily determinable fair values to determine whether impairment exists in such securities, considering, among other factors, the nature of the securities, financial condition of the issuer and expected future cash flows. During the three and nine months ended September 30, 2026, the Company recorded $558,000 of impairment of equity securities without readily determinable fair values. During the three and nine months ended September 30, 2025, the Company recorded $570,000 and $1.6 million of impairment of equity securities without readily determinable fair values.

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The following table presents the portion of the Company’s available-for-sale investment securities portfolios that have gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at September 30, 2026:

			Continuous unrealized losses existing for less than 12 months												Continuous unrealized losses existing for greater than 12 months												Total
(In thousands)			Fair Value						Unrealized Losses						Fair Value						Unrealized Losses						Fair Value						Unrealized Losses
Available-for-sale securities
U.S. government agencies			$	—					$	—					$	43,831					$	(6,169)					$	43,831					$	(6,169)
Municipal			127,329						(4,295)						27,222						(2,626)						154,551						(6,921)
Corporate notes:
Financial issuers			—						—						73,056						(1,944)						73,056						(1,944)
Other			962						(38)						—						—						962						(38)
Mortgage-backed: (1)
Residential mortgage-backed securities			4,185,360						(311,685)						1,885,320						(539,205)						6,070,680						(850,890)
Commercial (multi-family) mortgage-backed securities			199,929						(14,351)						160,228						(13,891)						360,157						(28,242)
Collateralized mortgage obligations			776,860						(25,500)						60,644						(17,975)						837,504						(43,475)
Total available-for-sale securities			$	5,290,440					$	(355,869)					$	2,250,301					$	(581,810)					$	7,540,741					$	(937,679)

(1)None of our mortgage-backed securities are subprime.

The Company conducts a regular assessment of its investment securities to determine whether securities are experiencing credit losses. Factors for consideration include the nature of the securities, credit ratings or financial condition of the issuer, the extent of the unrealized loss, expected cash flows, market conditions and the Company’s ability to hold the securities through the anticipated recovery period.

The Company does not consider available-for-sale securities with unrealized losses at September 30, 2026 to be experiencing credit losses and recognized no resulting allowance for credit losses for such individually assessed credit losses. The Company does not intend to sell these investments and it is more likely than not that the Company will not be required to sell these investments before recovery of the amortized cost bases, which may be the maturity dates of the securities. The unrealized losses within each category have occurred as a result of changes in interest rates, market spreads and market conditions subsequent to purchase. Available-for-sale securities with continuous unrealized losses existing for more than twelve months at September 30, 2026 were primarily mortgage-backed securities with unrealized losses due to increased market rates subsequent to the date the securities were purchased.

See Note (6) “Allowance for Credit Losses” in Item 1 of this report for further discussion regarding any credit losses associated with held-to-maturity securities at September 30, 2026.

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The following table provides information as to the amount of gross gains and losses, adjustments and impairment on investment securities recognized in earnings and proceeds received through the sale or call of investment securities:

			Three months ended September 30,												Nine months ended September 30,
(In thousands)			2026						2025						2026						2025
Realized gains on investment securities			$	263					$	3,563					$	926					$	3,846
Realized losses on investment securities			(69)						(2,689)						(185)						(3,313)
Net realized gains on investment securities			194						874						741						533
Unrealized gains on equity securities with readily determinable fair value			436						3,352						2,322						8,689
Unrealized losses on equity securities with readily determinable fair value			(1,693)						(684)						(2,312)						(741)
Net unrealized (losses) gains on equity securities with readily determinable fair value			(1,257)						2,668						10						7,948
Downward adjustments of equity securities without readily determinable fair values			—						—						—						(20)
Impairment of equity securities without readily determinable fair values			(558)						(570)						(558)						(1,643)
Adjustment and impairment, net, of equity securities without readily determinable fair values			(558)						(570)						(558)						(1,663)
(Losses) gains on investment securities, net			$	(1,621)					$	2,972					$	193					$	6,818

The amortized cost and fair value of available-for-sale and held-to-maturity investment securities as of September 30, 2026, December 31, 2025 and September 30, 2025, by contractual maturity, are shown in the following table. Contractual maturities may differ from actual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Mortgage-backed securities are not included in the maturity categories in the following maturity summary as actual maturities may differ from contractual maturities because the underlying mortgages may be called or prepaid without penalties:

			September 30, 2026												December 31, 2025												September 30, 2025
(In thousands)			Amortized Cost						Fair Value						Amortized Cost						Fair Value						Amortized Cost						Fair Value
Available-for-sale securities
Due in one year or less			$	48,833					$	48,700					$	47,978					$	47,915					$	58,284					$	58,315
Due in one to five years			146,758						142,968						143,352						141,123						160,939						159,081
Due in five to ten years			75,361						69,334						80,561						79,672						89,505						87,359
Due after ten years			29,263						24,171						27,481						25,257						26,992						24,408
Mortgage-backed			8,206,892						7,284,325						6,336,109						5,942,296						5,366,629						4,944,961
Total available-for-sale securities			$	8,507,107					$	7,569,498					$	6,635,481					$	6,236,263					$	5,702,349					$	5,274,124
Held-to-maturity securities
Due in one year or less			$	20,949					$	20,888					$	47,030					$	46,630					$	44,853					$	44,288
Due in one to five years			73,196						71,002						76,452						76,366						81,277						81,174
Due in five to ten years			60,751						53,836						67,195						63,882						91,067						87,541
Due after ten years			300,029						222,308						302,153						246,728						302,624						245,188
Mortgage-backed			2,665,791						2,025,486						2,851,335						2,351,541						2,918,980						2,402,779
Total held-to-maturity securities			$	3,120,716					$	2,393,520					$	3,344,165					$	2,785,147					$	3,438,801					$	2,860,970
Less: Allowance for credit losses			(213)												(260)												(395)
Held-to-maturity securities, net of allowance for credit losses			$	3,120,503											$	3,343,905											$	3,438,406

Securities having a carrying value of $9.3 billion at September 30, 2026 as well as securities having a carrying value of $8.6 billion and $8.0 billion at December 31, 2025 and September 30, 2025, respectively, were pledged as collateral for public deposits, trust deposits, Federal Home Loan Bank (“FHLB”) advances, Federal Reserve Bank (“FRB”) discount window,

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securities sold under repurchase agreements and derivatives. At September 30, 2026, there were no securities of a single issuer, other than U.S. government-sponsored agency securities, which exceeded 10% of shareholders’ equity.

(5) Loans

The following table shows the Company’s loan portfolio by category as of the dates shown:

			September 30,						December 31,						September 30,
(Dollars in thousands)			2026						2025						2025
Balance:
Commercial			$	18,341,765					$	17,044,686					$	16,544,342
Commercial real estate			14,960,611						13,940,736						13,619,207
Home equity			507,831						480,525						484,202
Residential real estate			4,696,015						4,317,232						4,143,870
Premium finance receivables—property & casualty			8,624,322						8,183,416						8,366,292
Premium finance receivables—life insurance			9,538,863						9,023,642						8,758,553
Consumer and other			135,164						114,864						147,016
Total loans, net of unearned income			$	56,804,571					$	53,105,101					$	52,063,482
Mix:
Commercial			32		%				32		%				32		%
Commercial real estate			27						26						26
Home equity			1						1						1
Residential real estate			8						8						8
Premium finance receivables—property & casualty			15						16						16
Premium finance receivables—life insurance			17						17						17
Consumer and other			0						0						0
Total loans, net of unearned income			100		%				100		%				100		%

The Company’s loan portfolio is generally comprised of loans to consumers and small to medium-sized businesses, which, for the commercial and commercial real estate portfolios, are located primarily within the geographic market areas that the banks serve. Various niche lending businesses, including franchise lending and insurance agency lending, operate on a national level. The premium finance receivables portfolios are made to customers throughout the United States and Canada. The Company strives to maintain a loan portfolio that is diverse in terms of loan type, industry, borrower, and geographic concentrations. Such diversification reduces the exposure to economic downturns that may occur in different segments of the economy or in different industries.

Certain premium finance receivables are recorded net of unearned income. The unearned income portions of such premium finance receivables were $274.7 million at September 30, 2026, $268.6 million at December 31, 2025 and $272.0 million at September 30, 2025.

Total loans, excluding purchased credit deteriorated (“PCD”) loans, include net deferred loan fees and costs and fair value purchase accounting adjustments totaling $106.6 million at September 30, 2026, $77.9 million at December 31, 2025 and $76.5 million at September 30, 2025.

It is the policy of the Company to review each prospective credit in order to determine the appropriateness and, when required, the adequacy of security or collateral necessary to obtain when making a loan. The type of collateral, when required, will vary from liquid assets to real estate. The Company seeks to ensure access to collateral, in the event of default, through adherence to state lending laws and the Company’s credit monitoring procedures.

(6) Allowance for Credit Losses

In accordance with ASC 326, the Company is required to measure the allowance for credit losses of financial assets with similar risk characteristics on a collective or pooled basis. In considering the segmentation of financial assets measured at amortized cost into pools, the Company considered various risk characteristics in its analysis. Generally, the segmentation utilized represents the level at which the Company develops and documents its systematic methodology to determine the allowance for credit losses for the financial assets held at amortized cost, specifically the Company's loan portfolio and debt securities

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classified as held-to-maturity. Descriptions of the Company’s loan portfolio segments and major debt security types are included in Note (5) “Allowance for Credit Losses” of the 2025 Form 10-K.

In accordance with ASC 326, the Company elected to not measure an allowance for credit losses on accrued interest. As such accrued interest is written off in a timely manner when deemed uncollectible. Any such write-off of accrued interest will reverse previously recognized interest income. In addition, the Company elected to not include accrued interest within presentation and disclosures of the carrying amount of financial assets held at amortized cost. This election is applicable to the various disclosures included within the Company's financial statements. Accrued interest related to financial assets held at amortized cost is included within accrued interest receivable and other assets within the Company's Consolidated Statements of Condition and totaled $343.3 million at September 30, 2026, $312.2 million at December 31, 2025, and $342.4 million at September 30, 2025.

The tables below show the aging of the Company’s loan portfolio by the segmentation noted above at September 30, 2026, December 31, 2025 and September 30, 2025:

As of September 30, 2026									90+ days and still accruing						60-89 days past due						30-59 days past due
(In thousands)			Non-accrual																								Current						Total Loans
Loan Balances (includes PCD):
Commercial			$	85,670					$	—					$	21,825					$	39,132					$	18,195,138					$	18,341,765
Commercial real estate
Construction and development			834						—						8,333						14,278						2,655,444						2,678,889
Non-construction			12,179						—						9,494						60,267						12,199,782						12,281,722
Home equity			1,149						—						1,085						1,427						504,170						507,831
Residential real estate, excluding early buy-out loans			26,218						—						5,390						114						4,521,155						4,552,877
Premium finance receivables—property & casualty			23,341						17,093						19,238						33,757						8,530,893						8,624,322
Premium finance receivables—life insurance			—						10,380						536						3,515						9,524,432						9,538,863
Consumer and other			27						13						42						251						134,831						135,164
Total loans, net of unearned income, excluding early buy-out loans			$	149,418					$	27,486					$	65,943					$	152,741					$	56,265,845					$	56,661,433
Early buy-out loans guaranteed by U.S. government agencies (1)			—						54,408						—						—						88,730						143,138
Total loans, net of unearned income			$	149,418					$	81,894					$	65,943					$	152,741					$	56,354,575					$	56,804,571

(1)Early buy-out loans are insured or guaranteed by the Federal Housing Administration (FHA) or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

As of December 31, 2025									90+ days and still accruing						60-89 days past due						30-59 days past due
(In thousands)			Non-accrual																								Current						Total Loans
Loan Balances (includes PCD):
Commercial			$	78,059					$	—					$	22,952					$	90,205					$	16,853,470					$	17,044,686
Commercial real estate
Construction and development			2,976						—						1,260						13,456						2,391,890						2,409,582
Non-construction			22,171						—						18,269						52,145						11,438,569						11,531,154
Home equity			1,221						—						1,112						2,818						475,374						480,525
Residential real estate, excluding early buy-out loans			32,862						—						7,562						24,908						4,106,107						4,171,439
Premium finance receivables—property & casualty			29,354						19,115						29,294						57,685						8,047,968						8,183,416
Premium finance receivables—life insurance			—						—						13,887						22,806						8,986,949						9,023,642
Consumer and other			8						42						466						643						113,705						114,864
Total loans, net of unearned income, excluding early buy-out loans			$	166,651					$	19,157					$	94,802					$	264,666					$	52,414,032					$	52,959,308
Early buy-out loans guaranteed by U.S. government agencies (1)			—						53,848						204						1,316						90,425						145,793
Total loans, net of unearned income			$	166,651					$	73,005					$	95,006					$	265,982					$	52,504,457					$	53,105,101

(1)Early buy-out loans are insured or guaranteed by the Federal Housing Administration (FHA) or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

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As of September 30, 2025									90+ days and still accruing						60-89 days past due						30-59 days past due
(In thousands)			Non-accrual																								Current						Total Loans
Loan Balances (includes PCD):
Commercial			$	66,577					$	—					$	12,190					$	36,136					$	16,429,439					$	16,544,342
Commercial real estate
Construction and development			3,227						—						630						40,276						2,614,020						2,658,153
Non-construction			24,975						—						13,489						42,779						10,879,811						10,961,054
Home equity			1,295						—						246						2,294						480,367						484,202
Residential real estate, excluding early buy-out loans			28,942						—						8,829						95						3,981,180						4,019,046
Premium finance receivables—property & casualty			24,512						13,006						23,527						38,133						8,267,114						8,366,292
Premium finance receivables—life insurance			—						—						34,016						34,506						8,690,031						8,758,553
Consumer and other			38						60						49						159						146,710						147,016
Total loans, net of unearned income, excluding early buy-out loans			$	149,566					$	13,066					$	92,976					$	194,378					$	51,488,672					$	51,938,658
Early buy-out loans guaranteed by U.S. government agencies (1)			—						47,374						—						—						77,450						124,824
Total loans, net of unearned income			$	149,566					$	60,440					$	92,976					$	194,378					$	51,566,122					$	52,063,482

(1)Early buy-out loans are insured or guaranteed by the Federal Housing Administration (FHA) or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

Credit Quality Indicators

Credit quality indicators, specifically the Company's internal risk rating systems, reflect how the Company monitors credit losses and represents factors used by the Company when measuring the allowance for credit losses. Descriptions of the Company’s credit quality indicators by financial asset are included in Note (5) “Allowance for Credit Losses” of the 2025 Form 10-K.

The table below shows the Company’s loan portfolio by credit quality indicator and year of origination at September 30, 2026:

			Year of Origination																								Revolving						Total
(In thousands)			2026			2025			2024			2023			2022			Prior						Revolving			to Term						Loans
Loan Balances:
Commercial
Pass			$	2,971,051		$	2,962,402		$	2,111,289		$	1,232,190		$	796,861		$	1,422,808					$	6,120,810		$	22,512					$	17,639,923
Special mention			27,967			19,693			48,251			28,875			9,922			10,700						226,790			19,503						391,701
Substandard accrual			1,211			52,365			38,472			34,939			14,124			55,443						25,761			2,156						224,471
Substandard non-accrual/doubtful			4,346			10,058			7,993			5,715			31,675			18,032						7,304			547						85,670
Total commercial, industrial and other			$	3,004,575		$	3,044,518		$	2,206,005		$	1,301,719		$	852,582		$	1,506,983					$	6,380,665		$	44,718					$	18,341,765
Construction and development
Pass			$	305,357		$	643,695		$	633,432		$	374,720		$	405,309		$	97,462					$	16,111		$	—					$	2,476,086
Special mention			—			5,030			42,230			16,363			62,045			2,255						—			—						127,923
Substandard accrual			—			—			—			33,295			—			40,751						—			—						74,046
Substandard non-accrual/doubtful			—			—			—			—			—			834						—			—						834
Total construction and development			$	305,357		$	648,725		$	675,662		$	424,378		$	467,354		$	141,302					$	16,111		$	—					$	2,678,889
Non-construction
Pass			$	2,305,130		$	2,115,291		$	1,052,536		$	971,119		$	1,532,813		$	3,646,392					$	222,938		$	1,072					$	11,847,291
Special mention			102,786			26,581			851			30,297			54,081			37,933						—			—						252,529
Substandard accrual			—			203			20,765			41,765			44,346			62,644						—			—						169,723
Substandard non-accrual/doubtful			—			—			—			1,271			682			10,226						—			—						12,179
Total non-construction			$	2,407,916		$	2,142,075		$	1,074,152		$	1,044,452		$	1,631,922		$	3,757,195					$	222,938		$	1,072					$	12,281,722
Home equity
Pass			$	336		$	99		$	210		$	155		$	239		$	21,041					$	464,397		$	7,022					$	493,499
Special mention			—			—			292			106			97			840						5,962			103						7,400
Substandard accrual			—			—			35			240			70			3,611						1,690			137						5,783
Substandard non-accrual/doubtful			—			—			—			99			140			910						—			—						1,149
Total home equity			$	336		$	99		$	537		$	600		$	546		$	26,402					$	472,049		$	7,262					$	507,831
Residential real estate
Early buy-out loans guaranteed by U.S. government agencies			$	—		$	1,265		$	12,971		$	10,116		$	8,127		$	110,659					$	—		$	—					$	143,138
Pass			846,610			1,015,239			563,158			335,846			696,483			1,035,455						—			—						4,492,791
Special mention			319			1,059			988			1,660			6,775			8,594						—			—						19,395

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Substandard accrual			153			26			2,172			824			5,869			5,429						—			—						14,473
Substandard non-accrual/doubtful			14			997			2,681			5,785			5,759			10,982						—			—						26,218
Total residential real estate			$	847,096		$	1,018,586		$	581,970		$	354,231		$	723,013		$	1,171,119					$	—		$	—					$	4,696,015
Premium finance receivables - property and casualty
Pass			$	8,290,104		$	204,365		$	2,434		$	—		$	—		$	—					$	—		$	—					$	8,496,903
Special mention			88,320			4,665			20			—			—			—						—			—						93,005
Substandard accrual			8,673			2,400			—			—			—			—						—			—						11,073
Substandard non-accrual/doubtful			11,945			11,395			1			—			—			—						—			—						23,341
Total premium finance receivables - property and casualty			$	8,399,042		$	222,825		$	2,455		$	—		$	—		$	—					$	—		$	—					$	8,624,322
Premium finance receivables - life (1)
Pass			$	346,023		$	755,875		$	824,429		$	595,389		$	787,138		$	6,199,163					$	—		$	—					$	9,508,017
Special mention			—			—			—			—						—						—			—						—
Substandard accrual			—			—			—			—			—			30,846						—			—						30,846
Substandard non-accrual/doubtful			—			—			—			—			—			—						—			—						—
Total premium finance receivables - life			$	346,023		$	755,875		$	824,429		$	595,389		$	787,138		$	6,230,009					$	—		$	—					$	9,538,863
Consumer and other
Pass			$	4,251		$	2,906		$	941		$	325		$	77		$	29,229					$	96,312		$	—					$	134,041
Special mention			20			77			8			862			76			1						8			—						1,052
Substandard accrual			6			16			9			3			—			6						4			—						44
Substandard non-accrual/doubtful			—			1			—			—			—			26						—			—						27
Total consumer and other			$	4,277		$	3,000		$	958		$	1,190		$	153		$	29,262					$	96,324		$	—					$	135,164
Total loans
Early buy-out loans guaranteed by U.S. government agencies			$	—		$	1,265		$	12,971		$	10,116		$	8,127		$	110,659					$	—		$	—					$	143,138
Pass			15,068,862			7,699,872			5,188,429			3,509,744			4,218,920			12,451,550						6,920,568			30,606						55,088,551
Special mention			219,412			57,105			92,640			78,163			132,996			60,323						232,760			19,606						893,005
Substandard accrual			10,043			55,010			61,453			111,066			64,409			198,730						27,455			2,293						530,459
Substandard non-accrual/doubtful			16,305			22,451			10,675			12,870			38,256			41,010						7,304			547						149,418
Total loans			$	15,314,622		$	7,835,703		$	5,366,168		$	3,721,959		$	4,462,708		$	12,862,272					$	7,188,087		$	53,052					$	56,804,571
Gross write offs
Three months ended September 30, 2026			$	7,820		$	1,806		$	8,202		$	1,372		$	424		$	7,550					$	—		$	—					$	27,174
Nine months ended September 30, 2026			$	8,312		$	16,625		$	13,556		$	8,396		$	5,996		$	15,220					$	—		$	—					$	68,105

(1)For premium finance receivables - life, the year of origination represents when the borrower’s master loan agreement was initially established.

Held-to-maturity debt securities

The Company conducts an assessment of its investment securities, including those classified as held-to-maturity, at the time of purchase and on at least an annual basis to ensure such investment securities remain within appropriate levels of risk and continue to perform satisfactorily in fulfilling its obligations. The Company considers, among other factors, the nature of the securities and credit ratings or financial condition of the issuer. If available, the Company obtains a credit rating for issuers from a Nationally Recognized Statistical Rating Organization (“NRSRO”) for consideration. If no such rating is available for an issuer, the Company performs an internal rating based on the scale utilized within the loan portfolio. For purposes of the table below, the Company has converted any issuer rating from an NRSRO into the Company’s internal ratings based on Investment Policy and review by the Company’s management.

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As of September 30, 2026			Year of Origination																					Total
(In thousands)			2026			2025			2024			2023			2022			Prior						Balance
Amortized Cost Balances:
U.S. government agencies
1-4 internal grade			$	—		$	—		$	—		$	—		$	135,000		$	178,542					$	313,542
5-7 internal grade			—			—			—			—			—			—						—
8-10 internal grade			—			—			—			—			—			—						—
Total U.S. government agencies			$	—		$	—		$	—		$	—		$	135,000		$	178,542					$	313,542
Municipal
1-4 internal grade			$	—		$	—		$	—		$	3,583		$	1,022		$	126,916					$	131,521
5-7 internal grade			—			—			—			—			—			1,887						1,887
8-10 internal grade			—			—			—			—			—			—						—
Total municipal			$	—		$	—		$	—		$	3,583		$	1,022		$	128,803					$	133,408
Mortgage-backed securities
1-4 internal grade			$	—		$	—		$	—		$	220,721		$	439,347		$	2,005,723					$	2,665,791
5-7 internal grade			—			—			—			—			—			—						—
8-10 internal grade			—			—			—			—			—			—						—
Total mortgage-backed securities			$	—		$	—		$	—		$	220,721		$	439,347		$	2,005,723					$	2,665,791
Corporate notes
1-4 internal grade			$	—		$	—		$	—		$	—		$	4,975		$	3,000					$	7,975
5-7 internal grade			—			—			—			—			—			—						—
8-10 internal grade			—			—			—			—			—			—						—
Total corporate notes			$	—		$	—		$	—		$	—		$	4,975		$	3,000					$	7,975
Total held-to-maturity securities																								$	3,120,716
Less: Allowance for credit losses																								(213)
Held-to-maturity securities, net of allowance for credit losses																								$	3,120,503

Measurement of Allowance for Credit Losses

The Company's allowance for credit losses consists of the allowance for loan losses, the allowance for unfunded commitment losses and the allowance for held-to-maturity debt security losses. In accordance with ASC 326, the Company measures the allowance for credit losses at the time of origination or purchase of a financial asset, representing an estimate of lifetime expected credit losses on the related asset. When developing its estimate, the Company considers available information relevant to assessing the collectability of cash flows, from both internal and external sources. Historical credit loss experience is one input in the estimation process as well as inputs relevant to current conditions and reasonable and supportable forecasts. In considering past events, the Company considers the relevance, or lack thereof, of historical information due to changes in such things as financial asset underwriting or collection practices, and changes in portfolio mix due to changing business plans and strategies. In considering current conditions and forecasts, the Company considers both the current economic environment and the forecasted direction of the economic environment with emphasis on those factors deemed relevant to or driving changes in expected credit losses. As significant judgment is required, the review of the appropriateness of the allowance for credit losses is performed quarterly by various committees with participation by the Company's executive management.

						September 30,																		December 31,						September 30,
(In thousands)						2026																		2025						2025
Allowance for loan losses						$	401,729																	$	379,283					$	386,622
Allowance for unfunded lending-related commitments losses						84,111																		80,922						67,569
Allowance for loan losses and unfunded lending-related commitments losses						485,840																		460,205						454,191
Allowance for held-to-maturity securities losses						213																		260						395
Allowance for credit losses						$	486,053																	$	460,465					$	454,586

The allowance for credit losses is measured on a collective or pooled basis when similar risk characteristics exist, based upon the segmentation discussed above. The Company utilizes modeling methodologies that estimate lifetime credit loss rates on each pool. These methodologies include estimating the probability of default and loss given default on the commercial and commercial real estate segments, using the weighted-average remaining maturity methodology for the residential real estate, home equity, and consumer segments, and utilizing an assumption-based approach focusing on historical loss rates for the premium finance receivables segments. Historical credit loss history is adjusted for reasonable and supportable forecasts developed by the Company on a quantitative or qualitative basis and incorporates third party economic forecasts. Reasonable

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and supportable forecasts consider the macroeconomic factors that are most relevant to evaluating and predicting expected credit losses in the Company's financial assets. Currently, the Company utilizes an eight quarter forecast period using a single macroeconomic scenario provided by a third party and reviewed for potential adjustments within the Company's governance structure. For periods beyond the ability to develop reasonable and supportable forecasts, the Company reverts to historical loss rates at an input level, straight-line over a four quarter reversion period. Expected credit losses are measured over the contractual term of the financial asset with consideration of expected prepayments. Expected extensions, renewals or modifications of the financial asset are considered when the expected extension, renewal or modification is contained within the existing agreement and is not unconditionally cancelable. The methodologies discussed above are applied to both current asset balances on the Company’s Consolidated Statements of Condition and off-balance sheet commitments (i.e. unfunded lending-related commitments).

Assets that do not share similar risk characteristics with a pool are assessed for the allowance for credit losses on an individual basis. These typically include assets experiencing financial difficulties, including assets rated as substandard non-accrual and doubtful. If foreclosure is probable or the asset is considered collateral-dependent, expected credit losses are measured based upon the fair value of the underlying collateral adjusted for selling costs, if appropriate. Underlying collateral across the Company's segments consist primarily of real estate, land and construction assets as well as general business assets of the borrower. As of September 30, 2026, excluding loans carried at fair value, substandard non-accrual loans totaling $62.0 million in carrying balance had no related allowance for credit losses.

The Company does not measure an allowance for credit losses on accrued interest receivable balances because these balances are written off in a timely manner as a reduction to interest income when assets are placed on non-accrual status.

Loan portfolios

A summary of activity in the allowance for credit losses, specifically for the loan portfolio (i.e. allowance for loan losses and allowance for unfunded commitment losses), for the three and nine months ended September 30, 2026 and September 30, 2025 is as follows:

Three months ended September 30, 2026									Commercial Real Estate						Home  Equity						Residential Real Estate						Premium Finance Receivables						Consumer and Other						Total Loans
(In thousands)			Commercial
Allowance for credit losses at beginning of period			$	234,809					$	209,948					$	10,004					$	13,257					$	11,952					$	999					$	480,969
Other adjustments			—						—						—						—						(18)						—						(18)
Charge-offs			(19,075)						(414)						—						(107)						(7,361)						(217)						(27,174)
Recoveries			1,577						2,103						12						24						2,435						26						6,177
Provision for credit losses			22,823						(2,564)						(179)						445						5,321						40						25,886
Allowance for credit losses at period end			$	240,134					$	209,073					$	9,837					$	13,619					$	12,329					$	848					$	485,840
By measurement method:
Individually measured			$	23,091					$	81					$	—					$	47					$	—					$	1					$	23,220
Collectively measured			217,043						208,992						9,837						13,572						12,329						847						462,620
Loans at period end
Individually measured			$	85,670					$	13,013					$	1,149					$	26,111					$	—					$	27					$	125,970
Collectively measured			18,256,095						14,947,598						506,682						4,524,154						18,163,185						135,137						56,532,851
Loans held at fair value			—						—						—						145,750						—						—						145,750

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Three months ended September 30, 2025			Commercial						Commercial Real Estate						Home  Equity						Residential Real Estate						Premium Finance Receivables						Consumer and Other						Total Loans
(In thousands)
Allowance for credit losses at beginning of period			$	194,568					$	224,358					$	9,221					$	11,455					$	16,612					$	849					$	457,063
Other adjustments			—						—						—						—						(88)						—						(88)
Charge-offs			(21,597)						(144)						(27)						(26)						(6,878)						(174)						(28,846)
Recoveries			1,449						241						104						1						2,459						37						4,291
Provision for credit losses			15,056						6,022						(69)						583						(156)						335						21,771
Allowance for credit losses at period end			$	189,476					$	230,477					$	9,229					$	12,013					$	11,949					$	1,047					$	454,191
By measurement method:
Individually measured			$	29,747					$	9,688					$	—					$	60					$	—					$	3					$	39,498
Collectively measured			159,729						220,789						9,229						11,953						11,949						1,044						414,693
Loans at period end
Individually measured			$	66,576					$	28,203					$	1,295					$	28,854					$	—					$	38					$	124,966
Collectively measured			16,477,766						13,591,004						482,907						3,985,423						17,124,845						146,978						51,808,923
Loans held at fair value			—						—						—						129,593						—						—						129,593

Nine months ended September 30, 2026									Commercial Real Estate						Home  Equity						Residential Real Estate						Premium Finance Receivables						Consumer and Other						Total Loans
(In thousands)			Commercial
Allowance for credit losses at beginning of period			$	178,545					$	246,933					$	10,402					$	12,519					$	11,011					$	795					$	460,205
Other adjustments			—						—						—						—						(158)						—						(158)
Charge-offs			(38,340)						(8,381)						—						(620)						(20,195)						(569)						(68,105)
Recoveries			4,706						2,114						331						26						7,948						119						15,244
Provision for credit losses			95,223						(31,593)						(896)						1,694						13,723						503						78,654
Allowance for credit losses at period end			$	240,134					$	209,073					$	9,837					$	13,619					$	12,329					$	848					$	485,840

Nine months ended September 30, 2025									Commercial Real Estate						Home  Equity						Residential Real Estate						Premium Finance Receivables						Consumer and Other						Total Loans
(In thousands)			Commercial
Allowance for credit losses at beginning of period			$	175,837					$	222,856					$	8,943					$	10,335					$	17,820					$	812					$	436,603
Other adjustments			—						—						—						—						96						—						96
Charge-offs			(37,467)						(6,309)						(138)						(26)						(20,350)						(500)						(64,790)
Recoveries			4,124						263						350						139						9,281						98						14,255
Provision for credit losses			46,982						13,667						74						1,565						5,102						637						68,027
Allowance for credit losses at period end			$	189,476					$	230,477					$	9,229					$	12,013					$	11,949					$	1,047					$	454,191

For the three and nine months ended September 30, 2026, the Company recognized approximately $25.9 million and $78.7 million of provision for credit losses, respectively, related to loans and lending agreements. The provision for each period was primarily the result of losses experienced in the Commercial and Premium Finance Receivables portfolios, growth across various segments, and qualitative overlays related to the uncertainty of future performance of the economy, which was offset by an improved forecast related to CRE Price Index. Net charge-offs in the three and nine month periods ended September 30, 2026, totaled $21.0 million and $52.9 million, respectively.

Held-to-maturity debt securities

The allowance for credit losses on the Company’s held-to-maturity debt securities is presented as a reduction to the amortized cost basis of held-to-maturity securities on the Company's Consolidated Statements of Condition. For the three and nine month periods ended September 30, 2026, the Company recognized approximately $(7,000) and $(47,000), respectively, of provision for credit losses related to held-to-maturity securities. At September 30, 2026, the Company did not identify any held-to-maturity debt securities within its portfolio that would require a charge-off.

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Loan Modifications to Borrowers Experiencing Financial Difficulties

The Company’s approach to restructuring or modifying loans is built on its credit risk rating system, which requires credit management personnel to assign a credit risk rating to each loan. In each case, the loan officer is responsible for recommending a credit risk rating for each loan and ensuring the credit risk ratings are appropriate. These credit risk ratings are then reviewed and approved by the bank’s chief credit officer and/or concurrence credit officer. Credit risk ratings are determined by evaluating a number of factors, including a borrower’s financial strength, cash flow coverage, collateral protection and guarantees. The Company’s credit risk rating scale is one through ten with higher scores indicating higher risk. In the case of loans rated six or worse following modification, the Company’s Managed Assets Division evaluates the loan and the credit risk rating and determines that the loan has been restructured to be reasonably assured of repayment and of performance according to the modified terms and is supported by a current, well-documented credit assessment of the borrower’s financial condition and prospects for repayment under the revised terms. Based on the Company’s credit risk rating system, it considers that borrowers whose credit risk rating is 5 or better are not experiencing financial difficulties.

Restructurings may arise when, due to financial difficulties experienced by the borrower, the Company obtains through physical possession one or more collateral assets in satisfaction of all or part of an existing credit. Once possession is obtained, the Company reclassifies the appropriate portion of the remaining balance of the credit from loans to other real estate owned (“OREO”), which is included within other assets in the Consolidated Statements of Condition. For any residential real estate property collateralizing a consumer mortgage loan, the Company is considered to possess the related collateral only if legal title is obtained upon completion of foreclosure, or the borrower conveys all interest in the residential real estate property to the Company through completion of a deed in lieu of foreclosure or similar legal agreement. At September 30, 2026, the Company had no foreclosed residential real estate properties included within OREO. Further, the recorded investment in residential mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $65.5 million and $67.0 million at September 30, 2026 and 2025, respectively.

The tables below present a summary of the period-end balance of loans to borrowers experiencing financial difficulties during the three and nine months ended September 30, 2026 and 2025:

Three Months Ended September 30, 2026 (Dollars in thousands)						Total						Percentage of Total Class of Loan						Extension of Term						Reduction of  Interest Rate						Interest Only Payments						Delay in Contractual Payments						Extension of Term and Reduction of Interest Rate
Commercial						$	10,152					0.1		%				$	9,923					$	47					$	—					$	182					$	—
Commercial real estate
Construction and development						568						0.0						568						—						—						—						—
Non-construction						734						0.0						734						—						—						—						—
Residential real estate						1,191						0.0						915						219						—						57						—
Premium finance receivables—property & casualty						13						0.0						13						—						—						—						—
Total loans						$	12,658					0.0		%				$	12,153					$	266					$	—					$	239					$	—

												Weighted Average Magnitude of Modifications:
Three Months Ended September 30, 2026  (Dollars in thousands)						Total						Duration of Extension of Term (months)						Reduction of  Interest Rate (bps)						Duration of Delay in Contractual Payments (months)
Commercial						$	10,152					5						325						30
Commercial real estate
Construction and development						568						7						—						—
Non-construction						734						3						—						—
Residential real estate						1,191						9						104						73
Premium finance receivables—property & casualty						13						2						74						—
Total loans						$	12,658					3						143						40

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Three Months Ended September 30, 2025 (Dollars in thousands)						Total						Percentage of Total Class of Loan						Extension of Term						Reduction of  Interest Rate						Interest Only Payments						Delay in Contractual Payments						Extension of Term and Reduction of Interest Rate
Commercial						$	4,791					0.1		%				$	4,464					$	—					$	—					$	—					$	327
Commercial real estate
Non-construction						196						0.0						196						—						—						—						—
Residential real estate						392						0.0						287						—						—						—						105
Total loans						$	5,379					0.0		%				$	4,947					$	—					$	—					$	—					$	432

												Weighted Average Magnitude of Modifications:
Three Months Ended September 30, 2025 (Dollars in thousands)						Total						Duration of Extension of Term (months)						Reduction of  Interest Rate (bps)						Duration of Delay in Contractual Payments (months)
Commercial						$	4,791					6						190						—
Commercial real estate
Non-construction						196						6						—						—
Residential real estate						392						11						90						—
Total loans						$	5,379					7						166						—

Nine Months Ended September 30, 2026 (Dollars in thousands)						Total						Percentage of Total Class of Loan						Extension of Term						Reduction of  Interest Rate						Interest Only Payments						Delay in Contractual Payments						Extension of Term and Reduction of Interest Rate
Commercial						$	30,672					0.4		%				$	15,015					$	83					$	—					$	15,530					$	44
Commercial real estate
Construction and development						1,137						0.0						1,137						—						—						—						—
Non-construction						12,233						0.1						11,540						—						—						693						—
Residential real estate						1,873						0.0						1,299						219						—						300						55
Premium finance receivables—property & casualty						16						0.0						13						3						—						—						—
Total loans						$	45,931					0.1		%				$	29,004					$	305					$	—					$	16,523					$	99

												Weighted Average Magnitude of Modifications:
Nine Months Ended September 30, 2026 (Dollars in thousands)						Total						Duration of Extension of Term (months)						Reduction of  Interest Rate (bps)						Duration of Delay in Contractual Payments (months)
Commercial						$	30,672					20						264						37
Commercial real estate
Construction and development						1,137						9						—						—
Non-construction						12,233						5						—						37
Residential real estate						1,873						34						141						163
Premium finance receivables—property & casualty						16						2						67						—
Total loans						$	45,931					16						193						39

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Nine Months Ended September 30, 2025 (Dollars in thousands)						Total						Percentage of Total Class of Loan						Extension of Term						Reduction of  Interest Rate						Interest Only Payments						Delay in Contractual Payments						Extension of Term and Reduction of Interest Rate
Commercial						$	15,370					0.2		%				$	14,917					$	9					$	—					$	—					$	444
Commercial real estate
Non-construction						196						0.0						196						—						—						—						—
Residential real estate						1,524						0.0						447						276						—						—						801
Premium finance receivables—property & casualty						865						0.0						865						—						—						—						—
Total loans						$	17,955					0.0		%				$	16,425					$	285					$	—					$	—					$	1,245

												Weighted Average Magnitude of Modifications:
Nine months ended September 30, 2025 (Dollars in thousands)						Total						Duration of Extension of Term (months)						Reduction of  Interest Rate (bps)						Duration of Delay in Contractual Payments (months)
Commercial						$	15,370					7						155						—
Commercial real estate
Non-construction						196						6						—						—
Residential real estate						1,524						11						148						—
Premium finance receivables—property & casualty						865						12						—						—
Total loans						$	17,955					8						$	150					—

The Company had commitments of $86.6 million and $23.9 million as of September 30, 2026 and September 30, 2025, respectively, to lend additional funds to borrowers experiencing financial difficulty and for whom the Company has modified the terms of loans in the form of principal forgiveness, an interest rate reduction, an other-than insignificant payment delay or a term extension during the periods presented.

The following table presents a summary of all modified loans for borrowers experiencing financial difficulties and such loans that were in payment default under the restructured terms during the respective periods below:

(Dollars in thousands)			For the Twelve Months Ended September 30, 2026												Three Months Ended September 30, 2026						Nine Months Ended September 30, 2026									For the Twelve Months Ended September 30, 2025						Three Months Ended September 30, 2025						Nine Months Ended September 30, 2025
			Total												Payments in Default  (1)						Payments in  Default  (1)									Total						Payments in  Default  (1)						Payments in  Default  (1)
Commercial			$	43,695											$	302					$	3,101								$	20,725					$	28					$	142
Commercial real estate
Construction and development			1,137												—						568									—						—						—
Non-construction			22,915												1,169						13,491									243						196						196
Residential real estate			2,538												312						312									1,524						224						920
Premium finance receivables—property & casualty			15												13						15									865						—						865
Total loans			$	70,300											$	1,796					$	17,487								$	23,357					$	448					$	2,123

(1)Modified loans considered to be in payment default are over 30 days past due subsequent to the restructuring.

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(7) Goodwill and Other Acquisition-Related Intangible Assets

A summary of the Company’s goodwill assets by reporting unit is presented in the following table:

(In thousands)			December 31, 2025						Goodwill Acquired						Impairment Loss						Goodwill Adjustments						September 30, 2026
Community banking			$	687,754					$	—					$	—					$	(11,331)					$	676,423
Specialty finance			38,211						—						—						10,534						48,745
Wealth management			71,995						7,498						—						—						79,493
Total			$	797,960					$	7,498					$	—					$	(797)					$	804,661

On September 1, 2026, the Company completed its purchase of the guardianship services business that was previously announced. This business had approximately $1.2 billion in assets under management. As a result of the business acquisition, the wealth management reporting unit’s goodwill increased by $7.5 million and the Company also recognized customer relationship intangible assets with an acquisition-date fair value of $26.6 million for total recorded intangibles of $34.1 million on the purchase. In accordance with GAAP, the initial purchase accounting for this business acquisition is not finalized and is therefore subject to change.

The specialty finance reporting unit’s goodwill increased in the first nine months of 2026 as $11.3 million of goodwill was reclassified from the community banking unit related to a line of business reclassification, partially offset by $797,000 of foreign currency translation adjustments related to the prior Canadian acquisitions. The line of business reclassification resulted from the reportable segment aggregation analysis performed following leadership changes occurring in 2026. The movement of this line of business between the two reporting units did not have a significant impact on the valuation of the Company’s reporting units as all reporting units had substantial excess in estimated fair value over the carrying value in the Company’s most recent quantitative assessment of goodwill.

The Company assesses each reporting unit’s goodwill for impairment on at least an annual basis and considers potential indicators of impairment at each reporting date between annual goodwill impairment tests. At October 1, 2025, the Company utilized a qualitative approach for its annual goodwill impairment tests of the community banking, specialty finance and wealth management reporting units and determined that no impairment existed at that time.

At each reporting date between annual goodwill impairment tests, the Company considers potential indicators of impairment. The Company assessed whether events and circumstances resulted in it being more likely than not that the fair value of any reporting unit was less than its carrying value. Potential impairment indicators considered include the condition of the economy and banking industry; government intervention and regulatory updates; the impact of recent events to financial performance and cost factors of the reporting units; performance of the Company’s stock and other relevant events.

At the conclusion of this assessment of all reporting units, the Company determined that as of September 30, 2026, it was more likely than not that the fair value of all reporting units exceeded the respective carrying value of such reporting unit.

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A summary of acquisition-related intangible assets as of the dates shown and the expected amortization of finite-lived acquisition-related intangible assets as of September 30, 2026 is as follows:

(In thousands)			September 30, 2026						December 31, 2025						September 30, 2025
Community banking segment:
Core deposit intangibles with finite lives:
Gross carrying amount			$	158,106					$	158,106					$	158,106
Accumulated amortization			(90,420)						(76,861)						(72,179)
Net carrying amount			$	67,686					$	81,245					$	85,927
Trademark with indefinite lives:
Carrying amount			11,500						11,500						13,800
Total net carrying amount			$	79,186					$	92,745					$	99,727
Specialty finance segment:
Customer list intangibles with finite lives:
Gross carrying amount			$	1,960					$	1,961					$	1,960
Accumulated amortization			(1,960)						(1,932)						(1,924)
Net carrying amount			$	—					$	29					$	36
Wealth management segment:
Customer list and other intangibles with finite lives:
Gross carrying amount			$	53,230					$	26,630					$	26,630
Accumulated amortization			(22,383)						(21,405)						(21,096)
Net carrying amount			$	30,847					$	5,225					$	5,534
Total acquisition-related intangible assets:
Gross carrying amount			$	224,796					$	198,197					$	200,496
Accumulated amortization			(114,763)						(100,198)						(95,199)
Total other acquisition-related intangible assets, net			$	110,033					$	97,999					$	105,297

Estimated amortization
Actual in nine months ended September 30, 2026			$	14,565
Estimated remaining in 2026			4,817
Estimated—2027			18,113
Estimated—2028			15,682
Estimated—2029			13,309
Estimated—2030			11,235

The core deposit intangibles recognized in connection with the Company’s bank acquisitions are amortized over a ten-year period on an accelerated basis. The customer list intangibles recognized in connection with the purchase of life insurance premium finance assets in 2009 are being amortized over an 18-year period on an accelerated basis. The customer list and other intangibles recognized in connection with acquisitions within the wealth management segment are being amortized over a period of up to 15 years on a straight-line or accelerated basis depending on the respective acquisition facts and circumstances. Indefinite-lived intangible assets consist of certain trade and domain names recognized in connection with prior acquisitions. As indefinite-lived intangible assets are not amortized, the Company assesses impairment on at least an annual basis. Total amortization expense associated with finite-lived acquisition-related intangibles totaled approximately $14.6 million and $16.4 million for the nine months ended September 30, 2026 and 2025, respectively.

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(8) Mortgage Servicing Rights (“MSRs”)

The following is a summary of the changes in the carrying value of MSRs, accounted for at fair value, for the periods indicated:

						Three Months Ended												Nine Months Ended
						September 30,						September 30,						September 30,						September 30,
(In thousands)						2026						2025						2026						2025
Fair value at beginning of the period						$	201,903					$	193,061					$	195,023					$	203,788
Additions from loans sold with servicing retained						7,083						5,829						22,262						16,834
Estimate of changes in fair value due to:
Payoffs, paydowns and repurchases						(5,387)						(5,604)						(18,527)						(15,856)
Changes in valuation inputs or assumptions						34,886						(2,348)						39,727						(13,828)
Fair value at end of the period						$	238,485					$	190,938					$	238,485					$	190,938
Unpaid principal balance of mortgage loans serviced for others						$	12,790,822					$	12,524,131

The Company recognizes MSR assets upon the sale of residential real estate loans to external third parties when it retains the obligation to service the loans and the servicing fee is more than adequate compensation. MSRs are included in other assets in the Consolidated Statements of Condition. The initial recognition of MSR assets from loans sold with servicing retained and subsequent changes in fair value of all MSRs are recognized in mortgage banking revenue. MSRs are subject to changes in value from actual and expected prepayment of the underlying loans.

The estimation of fair value related to MSRs is partly impacted by the Company exercising its early buyout options (“EBO”) on eligible loans previously sold to the Government National Mortgage Association (“GNMA”). Under such optional repurchase program, financial institutions acting as servicers are allowed to buy back from the securitized loan pool individual delinquent mortgage loans meeting certain criteria for which the institution was the original transferor of such loans. At the option of the servicer and without prior authorization from GNMA, the servicer may repurchase such delinquent loans for an amount equal to the remaining principal balance of the loan. At the time of such repurchase, any MSR value related to such loans is derecognized.

The MSR asset fair value is determined by using a discounted cash flow model that incorporates the objective characteristics of the portfolio as well as subjective valuation parameters that purchasers of servicing would apply to such portfolios sold into the secondary market. The subjective factors include loan prepayment speeds, discount rates, servicing costs and other economic factors. The Company uses a third party to assist in the valuation of MSRs.

Periodically, the Company will purchase mortgage and interest rate derivative contracts in which the Company elects to not designate such derivatives as hedging instruments. These contracts are designed primarily to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The gain or loss associated with these derivative contracts is included in mortgage banking revenue. For more information regarding these hedges outstanding as of September 30, 2026 and September 30, 2025, see Note (13) “Derivative Financial Instruments” in Item 1 of this report.

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(9) Deposits

The following table is a summary of deposits as of the dates shown: 

(Dollars in thousands)			September 30, 2026						December 31, 2025						September 30, 2025
Balance:
Non-interest-bearing			$	11,584,695					$	11,423,701					$	10,952,146
NOW and interest-bearing demand deposits			7,253,456						6,233,753						6,710,919
Wealth management deposits			1,690,496						1,907,647						1,600,735
Money market			24,174,275						21,368,924						20,270,382
Savings			6,487,247						6,905,216						6,758,743
Time certificates of deposit			11,245,047						9,877,950						10,418,456
Total deposits			$	62,435,216					$	57,717,191					$	56,711,381
Mix:
Non-interest-bearing			19		%				20		%				19		%
NOW and interest-bearing demand deposits			11						11						12
Wealth management deposits			3						3						3
Money market			39						37						36
Savings			10						12						12
Time certificates of deposit			18						17						18
Total deposits			100		%				100		%				100		%

Wealth management deposits represent deposit balances (primarily money market accounts) at the Company’s subsidiary banks from brokerage customers of Wintrust Investments, LLC (“Wintrust Investments”), Chicago Deferred Exchange Company (“CDEC”), and trust and asset management customers of the Company.

(10) FHLB Advances, Other Borrowings and Subordinated Notes

The following table is a summary of FHLB advances, other borrowings and subordinated notes as of the dates shown:

(In thousands)			September 30, 2026						December 31, 2025						September 30, 2025
FHLB advances			$	3,450,680					$	3,451,309					$	3,151,309
Other borrowings:
Notes payable			—						—						121,368
Secured borrowings			355,554						422,107						401,863
Other			—						55,859						56,097
Total other borrowings			355,554						477,966						579,328
Subordinated notes			298,903						298,636						298,536
Total FHLB advances, other borrowings and subordinated notes			$	4,105,137					$	4,227,911					$	4,029,173

Descriptions of the Company’s FHLB advances, other borrowings, and subordinated notes are included in Note (11) “Federal Home Loan Bank Advances”, Note (12) “Subordinated Notes” and Note (13) “Other Borrowings” of the 2025 Form 10-K.

Notes Payable

Notes payable balances represent the balances on the Company’s credit agreement with certain unaffiliated banks. The term loan facility was paid in full in December 2025. At September 30, 2026, there was no outstanding principal balance under the revolving credit facility. Borrowings under notes payable are secured by pledges of and first priority perfected security interests in the Company’s equity interest in its bank subsidiaries and contain several restrictive covenants, including the maintenance of various capital adequacy levels, asset quality and profitability ratios, and certain restrictions on dividends and other indebtedness. At September 30, 2026, the Company was in compliance with all such covenants.

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Secured Borrowings

The balance of secured borrowings primarily represents a third party Canadian transaction (“Canadian Secured Borrowing”). Under the Canadian Secured Borrowing, the Company, through its subsidiary, First Insurance Funding of Canada (“FIFC Canada”), sells an undivided co-ownership interest in all receivables owed to FIFC Canada to an unrelated third party in exchange for cash payments pursuant to a receivables purchase agreement (“Receivables Purchase Agreement”). On December 15, 2025, the Company entered into the Thirteenth Amending Agreement to the Receivables Purchase Agreement dated as of December 16, 2014. The amended Receivables Purchase Agreement provides for, among other things, an extension of the maturity date to December 15, 2026 and a decrease to the facility limit from C$650 million to C$580 million.

At September 30, 2026, the translated balance of the secured borrowings totaled $340.7 million compared to $408.0 million at December 31, 2025 and $387.9 million at September 30, 2025. The interest rate under the Receivables Purchase Agreement is the Canadian Commercial Paper Rate plus fee rate of 0.775%.

The remaining $14.8 million, $14.1 million and $14.0 million within secured borrowings at September 30, 2026, December 31, 2025 and September 30, 2025, respectively, represent other sold interests in certain loans by the Company that were not considered sales and, as such, related proceeds received are reflected on the Company’s Consolidated Statements of Condition as a secured borrowing owed to the various unrelated third parties.

Other Borrowings

Other borrowings represented a promissory note (“Promissory Note”) issued by the Company in June 2017. The Promissory Note was paid in full in March 2026.

Subordinated Notes

At September 30, 2026, the Company had outstanding subordinated notes totaling $298.9 million compared to $298.6 million and $298.5 million at December 31, 2025 and September 30, 2025, respectively. The notes issued in 2019 have a stated interest rate of 4.85% and mature in June 2029.

(11) Junior Subordinated Debentures

The junior subordinated debentures totaled $253.6 million at September 30, 2026, December 31, 2025 and September 30, 2025. At September 30, 2026, the weighted average contractual interest rate on the junior subordinated debentures was 6.40%. Descriptions of the Company’s Junior Subordinated Debentures are included in Note (14) “Junior Subordinated Debentures” in the 2025 Form 10-K.

(12) Segment Information

The Company’s operations consist of three primary segments: community banking, specialty finance and wealth management.

The three reportable segments are strategic business units that are separately managed as they offer different products and services and have different marketing strategies. In addition, each segment’s customer base has varying characteristics and each segment has a different regulatory environment. While the Company’s management monitors each of the sixteen bank subsidiaries’ operations and profitability separately, these subsidiaries have been aggregated into one reportable operating segment due to the similarities in products and services, customer base, operations, profitability measures, and economic characteristics.

For purposes of internal segment profitability, management allocates certain intersegment and parent company balances. Management allocates a portion of revenues to the specialty finance segment related to loans and leases originated by the specialty finance segment and sold or assigned to the community banking segment. Similarly, for purposes of analyzing the contribution from the wealth management segment, management allocates a portion of the net interest income earned by the community banking segment on deposit balances of customers of the wealth management segment to the wealth management segment. See Note (9) “Deposits” in Item 1 of this report for more information on these deposits. Finally, expenses incurred at the Wintrust parent company are allocated to each segment based on each segment’s risk-weighted assets.

The segment financial information provided in the following table has been derived from the internal profitability reporting system used by management to monitor and manage the financial performance of the Company. The accounting policies of the

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segments are substantially similar to those described in Note (1) “Summary of Significant Accounting Policies” in the 2025 Form 10-K.

Our Chief Executive Officer is our chief operating decision maker (“CODM”). The CODM uses income before taxes to review segment performance and allocate resources for each reportable segment. Financial information regarding each significant segment expense outlined below is regularly provided (at least monthly) to the CODM. For community banking and specialty finance segments, ‘Interest expense’ is a significant segment expense. Additionally, for each of the three reportable segments, ‘Salaries’, ‘Commissions and incentive compensation’ and ‘Benefits’ are significant segment expenses.

The following is a summary of certain operating information for reportable segments:

(In thousands)						Community Banking						Specialty Finance						Wealth Management						Total Operating Segments						Intersegment Eliminations						Consolidated
Three Months Ended September 30, 2026:
Interest income						$	851,622					$	130,857					$	9,488					$	991,967					$	10,894					$	1,002,861
Interest expense						358,955						22,197						105						381,257						—						381,257
Net interest income						492,667						108,660						9,383						610,710						10,894						621,604
Provision for credit losses						23,379						2,500						—						25,879						—						25,879
Non-interest income						82,313						34,777						42,522						159,612						(23,339)						136,273
Non-interest expense:
Salaries						100,205						18,564						9,504						128,273						345						128,618
Commissions and incentive compensation						35,264						11,472						15,175						61,911						—						61,911
Benefits						31,243						6,176						2,604						40,023						—						40,023
Other segment expenses (1)						151,555						26,912						9,436						187,903						(12,790)						175,113
Total non-interest expense						318,267						63,124						36,719						418,110						(12,445)						405,665
Income before taxes						233,334						77,813						15,186						326,333						—						326,333
Income tax expense						64,889						18,356						4,034						87,279						—						87,279
Net income						$	168,445					$	59,457					$	11,152					$	239,054					$	—					$	239,054
Total assets at period end						$	60,142,857					$	14,527,305					$	1,301,458					$	75,971,620					$	—					$	75,971,620
Three Months Ended September 30, 2025:
Interest income						$	838,871					$	107,840					$	5,697					$	952,408					$	11,426					$	963,834
Interest expense						386,326						10,410						88						396,824						—						396,824
Net interest income						452,545						97,430						5,609						555,584						11,426						567,010
Provision for credit losses						20,059						1,709						—						21,768						—						21,768
Non-interest income						82,507						32,221						39,663						154,391						(23,564)						130,827
Non-interest expense:
Salaries						97,900						16,464						9,761						124,125						498						124,623
Commissions and incentive compensation						33,175						10,445						12,624						56,244						—						56,244
Benefits						30,577						5,775						2,449						38,801						—						38,801
Other segment expenses (1)						140,977						23,702						8,317						172,996						(12,636)						160,360
Total non-interest expense						302,629						56,386						33,151						392,166						(12,138)						380,028
Income before taxes						212,364						71,556						12,121						296,041						—						296,041
Income tax expense						57,753						18,990						3,044						79,787						—						79,787
Net income						$	154,611					$	52,566					$	9,077					$	216,254					$	—					$	216,254
Total assets at period end						$	56,437,776					$	12,187,079					$	1,004,783					$	69,629,638					$	—					$	69,629,638

(1)Other segment expenses include non-interest expense categories such as ‘Software & Equipment’, ‘Data processing’, ‘Advertising and Marketing’, ‘FDIC Insurance’, and ‘Occupancy’. See “Non-Interest Expense” under Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 2 of this Form 10-Q for further discussion on non-interest expense.

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(In thousands)						Community Banking						Specialty Finance						Wealth Management						Total Operating Segments						Intersegment Eliminations						Consolidated
Nine Months Ended September 30, 2026:
Interest income						$	2,449,737					$	378,065					$	28,844					$	2,856,646					$	35,187					$	2,891,833
Interest expense						1,036,022						57,474						343						1,093,839						—						1,093,839
Net interest income						1,413,715						320,591						28,501						1,762,807						35,187						1,797,994
Provision for credit losses						72,029						6,578						—						78,607						—						78,607
Non-interest income						246,801						107,101						129,209						483,111						(71,427)						411,684
Non-interest expense:
Salaries						302,540						54,478						29,296						386,314						1,265						387,579
Commissions and incentive compensation						105,719						32,788						43,274						181,781						—						181,781
Benefits						95,973						19,447						8,308						123,728						—						123,728
Other segment expenses (1)						423,567						78,513						28,171						530,251						(37,505)						492,746
Total non-interest expense						927,799						185,226						109,049						1,222,074						(36,240)						1,185,834
Income before taxes						660,688						235,888						48,661						945,237						—						945,237
Income tax expense						180,281						52,875						11,946						245,102						—						245,102
Net income						$	480,407					$	183,013					$	36,715					$	700,135					$	—					$	700,135
Nine Months Ended September 30, 2025:
Interest income						$	2,408,155					$	312,275					$	16,192					$	2,736,622					$	35,085					$	2,771,707
Interest expense						1,099,943						31,228						358						1,131,529						—						1,131,529
Net interest income						1,308,212						281,047						15,834						1,605,093						35,085						1,640,178
Provision for credit losses						62,965						5,000						—						67,965						—						67,965
Non-interest income						231,498						96,784						112,991						441,273						(69,723)						371,550
Non-interest expense:
Salaries						293,388						47,864						28,968						370,220						1,494						371,714
Commissions and incentive compensation						98,637						29,462						36,552						164,651						—						164,651
Benefits						90,058						16,399						7,913						114,370						—						114,370
Other segment expenses (1)						413,177						72,237						27,562						512,976						(36,132)						476,844
Total non-interest expense						895,260						165,962						100,995						1,162,217						(34,638)						1,127,579
Income before taxes						581,485						206,869						27,830						816,184						—						816,184
Income tax expense						153,471						55,214						6,679						215,364						—						215,364
Net income						$	428,014					$	151,655					$	21,151					$	600,820					$	—					$	600,820

(1)Other segment expenses include non-interest expense categories such as ‘Software & Equipment’, ‘Data processing’, ‘Advertising and Marketing’, ‘FDIC Insurance’, and ‘Occupancy’. See “Non-Interest Expense” under Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 2 of this Form 10-Q for further discussion on non-interest expense.

(13) Derivative Financial Instruments

The Company primarily enters into derivative financial instruments as part of its strategy to manage its exposure to changes in interest rates. Derivative instruments represent contracts between parties that result in one party delivering cash to the other party based on a notional amount and an underlying term (such as a rate, security price, price index or commodity price) as specified in the contract. The amount of cash delivered from one party to the other is determined based on the interaction of the notional amount of the contract with the underlying term. Derivatives are also implicit in certain contracts and commitments.

The derivative financial instruments currently used by the Company to manage its exposure to interest rate risk include: (1) interest rate swaps, collars and floors to manage the interest rate risk of certain fixed and variable rate assets and variable rate liabilities; (2) interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market; (3) forward commitments for the future delivery of such mortgage loans to protect the Company from adverse changes in interest rates and corresponding changes in the value of mortgage loans held-for-sale; (4) covered call options to economically hedge specific investment securities and receive fee income, effectively enhancing the overall yield on

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such securities to compensate for potential net interest margin compression; and (5) options and swaps to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The Company also enters into derivatives (typically interest rate swaps and commodity forward contracts) with certain qualified borrowers to facilitate the borrowers’ risk management strategies and concurrently enters into mirror-image derivatives with a third-party counterparty, effectively making a market in the derivatives for such borrowers. Additionally, the Company enters into foreign currency contracts to manage foreign exchange risk associated with certain foreign currency denominated assets.

The Company recognizes derivative financial instruments in the consolidated financial statements at fair value regardless of the purpose or intent for holding the instrument. The Company records derivative assets and derivative liabilities on the Consolidated Statements of Condition within accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively. Changes in the fair value of derivative financial instruments are either recognized in income or in shareholders’ equity as a component of accumulated other comprehensive income or loss depending on whether the derivative financial instrument qualifies for hedge accounting and, if so, whether it qualifies as a fair value hedge or cash flow hedge.

Changes in fair values of derivatives accounted for as fair value hedges are recorded in income in the same period and in the same income statement line as changes in the fair values of the hedged items that relate to the hedged risk(s). Changes in fair values of derivative financial instruments accounted for as cash flow hedges are recorded as a component of accumulated other comprehensive income or loss, net of deferred taxes, and reclassified to earnings when the hedged transaction affects earnings. Changes in fair values of derivative financial instruments not designated in a hedging relationship pursuant to ASC 815 are reported in non-interest income during the period of the change. Derivative financial instruments are valued by a third party and are corroborated by comparison with valuations provided by the respective counterparties. Fair values of certain mortgage banking derivatives (interest rate lock commitments and forward commitments to sell mortgage loans) are estimated based on changes in mortgage interest rates from the date of the loan commitment. The fair value of foreign currency derivatives is computed based on changes in foreign currency rates stated in the contract compared to those prevailing at the measurement date. Commodity derivative fair values are computed based on changes in the price per unit stated in the contract compared to those prevailing at the measurement date.

The table below presents the fair value of the Company’s derivative financial instruments as of September 30, 2026, December 31, 2025 and September 30, 2025:

			Derivative Assets																		Derivative Liabilities
(In thousands)			September 30, 2026						December 31, 2025						September 30, 2025						September 30, 2026						December 31, 2025						September 30, 2025
Derivatives designated as hedging instruments under ASC 815:
Interest rate derivatives designated as Cash Flow Hedges			$	868					$	53,622					$	59,667					$	153,738					$	3,363					$	4,950
Interest rate derivatives designated as Fair Value Hedges			6,938						5,350						5,633						—						496						560
Total derivatives designated as hedging instruments under ASC 815			$	7,806					$	58,972					$	65,300					$	153,738					$	3,859					$	5,510
Derivatives not designated as hedging instruments under ASC 815:
Interest rate derivatives			$	187,075					$	116,562					$	136,018					$	215,638					$	116,745					$	133,279
Interest rate lock commitments			816						3,416						7,149						1,292						—						—
Forward commitments to sell mortgage loans			7,242						104						47						2,663						2,729						2,654
Commodity forward contracts			2,185						448						233						1,981						288						67
Foreign exchange contracts			467						165						210						433						153						195
Total derivatives not designated as hedging instruments under ASC 815			$	197,785					$	120,695					$	143,657					$	222,007					$	119,915					$	136,195
Total Derivatives			$	205,591					$	179,667					$	208,957					$	375,745					$	123,774					$	141,705

Cash Flow Hedges of Interest Rate Risk

The Company’s objectives in using interest rate derivatives are to add stability to net interest income and to manage its exposure to interest rate movements. To accomplish these objectives, the Company uses interest rate swaps, collars and floors as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts to or from a counterparty in exchange for the Company receiving or paying fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. Interest rate collars designated as cash flow hedges involve the settlement of amounts in which the interest rate specified in the contract exceeds the agreed upon cap strike rate or in which the interest rate specified in the contract is below the agreed upon floor strike rate at the end of each period.

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Interest rate floors designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty if interest rates fall below the strike rate on the contract in exchange for an upfront premium.

As of September 30, 2026, the Company had various interest rate collar, swap and floor derivatives designated as cash flow hedges of variable rate loans. When the relationship between the hedged item and hedging instrument is highly effective at achieving offsetting changes in cash flows attributable to the hedged risk, changes in the fair value of these cash flow hedges are recorded in accumulated other comprehensive income or loss and are subsequently reclassified to interest income as interest payments are made on such variable rate loans. The changes in fair value (net of tax) are separately disclosed in the Consolidated Statements of Comprehensive Income.

The table below provides details on these cash flow hedges, summarized by derivative type and maturity, as of September 30, 2026:

						September 30, 2026
(In thousands)						Range of Maturities						Notional Amount						Fair Value Asset (Liability)
Floor at 1-month CME Term SOFR						September 2028 - December 2029						$	450,000					$	817
Interest rate collars at 1-month CME term SOFR						October 2026 - September 2027						1,750,000						(11,006)
Interest rate swaps at 1-month CME term SOFR (1)						December 2026 - March 2032						5,800,000						(142,681)
Total Cash Flow Hedges												$	8,000,000					$	(152,870)

(1)The notional amount includes forward-starting swaps that are not yet effective.

In the first quarter of 2022, the Company terminated interest rate swap derivative contracts designated as cash flow hedges of variable rate deposits with a total notional value of $1.0 billion and a five-year term effective July 2022. At the time of termination, the fair value of the derivative contracts totaled an asset of $66.5 million, with such adjustments to fair value recorded in accumulated other comprehensive income or loss.

For all such terminations, as the hedged forecasted transactions (interest payments on variable rate deposits) are still expected to occur over the remaining term of such terminated derivatives, such adjustments will remain in accumulated other comprehensive income or loss and be reclassified as a reduction to interest expense on a straight-line basis over the original term of the terminated derivative contracts.

A rollforward of the amounts in accumulated other comprehensive income or loss related to interest rate derivatives designated as cash flow hedges, including such derivative contracts terminated during the period, follows:

			Three Months Ended												Nine Months Ended
(In thousands)			September 30, 2026						September 30, 2025						September 30, 2026						September 30, 2025
Unrealized (loss) gain at beginning of period			$	(4,479)					$	72,529					$	67,112					$	(15,508)
Amount reclassified from accumulated other comprehensive income or loss to interest income or expense on deposits, loans, and other borrowings			(3,812)						5,300						(12,394)						15,936
Amount of (loss) gain recognized in other comprehensive income or loss			(137,545)						(1,020)						(200,554)						76,381
Unrealized (loss) gain at end of period			$	(145,836)					$	76,809					$	(145,836)					$	76,809

As of September 30, 2026, the Company estimated that during the next 12 months $28.7 million will be reclassified from accumulated other comprehensive income or loss as a decrease to net interest income. Such estimate consists of $10.0 million reclassified as a reduction to interest expense on the terminated cash flow hedges discussed above and $38.7 million reclassified as a decrease to interest income related to the interest rate collars, floors and swaps noted above that remain outstanding.

Fair Value Hedges of Interest Rate Risk

Interest rate swaps designated as fair value hedges involve the payment of fixed amounts to a counterparty in exchange for the Company receiving variable payments over the life of the agreements without the exchange of the underlying notional amount. As of September 30, 2026, the Company had 13 interest rate swaps with an aggregate notional amount of $99.5 million that were designated as fair value hedges primarily associated with fixed rate commercial and industrial and commercial real estate loans as well as life insurance premium finance receivables.

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For derivatives designated and that qualify as fair value hedges, the net gain or loss from the entire change in the fair value of the derivative instrument is recognized in the same income statement line item as the earnings effect, including the net gain or loss, of the hedged item (interest income earned on fixed rate loans) when the hedged item affects earnings.

The following amounts were recorded on the balance sheet related to cumulative basis adjustments for fair value hedges as of September 30, 2026:

(In thousands)									September 30, 2026
Derivatives in Fair Value Hedging Relationships			Location in the Statement of Condition						Carrying Amount of the Hedged Assets/(Liabilities)						Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)									Cumulative Amount of Fair Value Hedging Adjustment Remaining for any Hedged Assets/(Liabilities) for which Hedge Accounting has been Discontinued
Interest rate swaps			Loans, net of unearned income						$	92,300					$	(6,869)								$	(13)
			Available-for-sale debt securities						333						(4)									—

The following table presents the loss or gain recognized related to derivative instruments that are designated as fair value hedges for the respective period:

(In thousands) Derivatives in Fair Value Hedging Relationships

Location of (Loss)/Gain Recognized in Income on Derivative

Three Months Ended

Nine Months Ended

September 30, 2026

September 30, 2026

Interest rate swaps

Interest and fees on loans

$

(3)

$

(3)

Non-Designated Hedges

The Company does not use derivatives for speculative purposes. Derivatives not designated as accounting hedges are used to manage the Company’s economic exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements of ASC 815. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings.

For each of the derivative strategies described below, the Company's banking subsidiaries execute derivative products directly with qualified borrowers or customers to facilitate their respective risk management strategies. In order to minimize the Company’s exposure on these transactions, the Company simultaneously executes offsetting derivatives with third parties. In most cases, the offsetting derivatives have mirror-image terms, which result in the positions’ changes in fair value substantially offsetting through earnings each period. However, to the extent that the derivatives are not a mirror-image and because of differences in counterparty credit risk, changes in fair value will not completely offset, resulting in some earnings impact each period. Changes in the fair value of these derivatives are included in other non-interest income.

(In thousands)

Notional

Derivative Type

September 30, 2026

December 31, 2025

Instrument

Example

Range of Maturities

Interest Rate

$

15,994,069

$

15,164,007

Swaps & caps

Convert variable rate loan to fixed

October 2026 - August 2037

Commodity

11,190

4,100

Forward contracts

Buy/sell a commodity at an agreed-upon price and date

October 2026 - October 2027

Foreign Currency

58,262

83,986

Foreign currency contracts

Exchange currency of one country for another at an agreed-upon price and date

October 2026 - June 2028

Mortgage Banking Derivatives—These derivatives include interest rate lock commitments provided to customers to fund certain mortgage loans to be sold into the secondary market and forward commitments for the future delivery of such loans. It is the Company’s practice to enter into forward commitments for the future delivery of a portion of its residential mortgage loan production when interest rate lock commitments are entered into in order to economically hedge the effect of future changes in interest rates on its commitments to fund the loans as well as on its portfolio of mortgage loans held-for-sale. The Company’s mortgage banking derivatives have not been designated as being in hedge relationships. At September 30, 2026 and

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December 31, 2025, the Company had interest rate lock commitments with an aggregate notional amount of approximately $137.1 million and $161.9 million, and forward commitments to sell mortgage loans with an aggregate notional amount of approximately $325.7 million and $413.2 million, respectively. The fair values of these derivatives were estimated based on changes in mortgage rates from the dates of the commitments. Changes in the fair value of these mortgage banking derivatives are included in mortgage banking revenue.

Periodically, the Company will purchase mortgage and interest rate derivative contracts in which the Company elects to not designate such derivatives as hedging instruments. These contracts are designed primarily to economically hedge a portion of the fair value adjustments related to the Company’s mortgage servicing rights portfolio. The gain or loss associated with these derivative contracts is included in mortgage banking revenue. The Company held fourteen interest rate derivatives with an aggregate notional value of $482.0 million at September 30, 2026 and ten interest rate derivatives with an aggregate notional value of $362.0 million at December 31, 2025. At September 30, 2026, the Company had one to-be-announced forward-setting contract for mortgage-backed securities with an aggregate notional value of $56.0 million, for such purpose of economically hedging a portion of the fair value adjustment related to its mortgage servicing rights portfolio. At December 31, 2025, the Company had one such forward-setting contract with an aggregate notional value of $56.0 million.

Other Derivatives—Periodically, the Company will sell options to a bank or dealer for the right to purchase certain securities held within the banks’ investment portfolios (covered call options). These option transactions are designed to increase the total return associated with the investment securities portfolio. These options do not qualify as accounting hedges pursuant to ASC 815 and, accordingly, changes in the fair value of these contracts are recognized as other non-interest income. There were no covered call options outstanding as of September 30, 2026, December 31, 2025 or September 30, 2025.

Amounts included in the Consolidated Statements of Income related to derivative instruments not designated in hedge relationships were as follows:

(In thousands)									Three Months Ended												Nine Months Ended
Derivative			Location in income statement						September 30, 2026						September 30, 2025						September 30, 2026						September 30, 2025
Interest rate swaps and caps			Trading gains, net						$	(10)					$	92					$	(76)					$	60
Mortgage banking derivatives			Mortgage banking						(4,491)						(584)						(1,953)						2,733
Commodity contracts			Trading gains, net						103						89						44						166
Foreign exchange contracts			Trading gains, net						54						79						196						152
Covered call options			Fees from covered call options						4,585						5,619						14,047						14,689
Derivative contract held as economic hedge on MSRs			Mortgage banking						(27,671)						265						(31,967)						7,697

Credit Risk

Derivative instruments have inherent risks, primarily market risk and credit risk. Market risk is associated with changes in the value of an underlying asset. Credit risk relates to the risk that the counterparty will fail to perform according to the terms of the agreement. The Company is exposed to the credit risk of its commercial borrowers and third party financial institutions who are counterparties to interest rate derivatives with the Company.

The counterparty credit risk associated with the mirror-image swaps executed with third party financial institutions is monitored and managed as part of the Company’s overall asset-liability management process, except that the counterparty credit risk related to derivatives entered into with certain qualified borrowers is managed through the Company’s standard loan underwriting process for commercial borrowers since these derivatives typically share in the collateral provided by the loan agreements.

When deemed necessary, appropriate types and amounts of collateral are obtained to minimize credit exposure. The Company hedges the market risk of derivatives transactions with commercial borrowers by entering into offsetting transactions with large, highly rated financial institutions. These exposures are generally secured by cash under bilateral Credit Support Annexes, which are a component of the International Swaps and Derivatives Association (“ISDA”) Master Agreements executed with counterparties.

Aggregate counterparty exposures are monitored against various types of credit limits established to contain risk within parameters. Counterparty credit risk is managed by the Counterparty Credit Risk Management team in accordance with Supervision & Regulatory 11-10, Interagency Counterparty Credit Risk Management Guidance, which was issued in 2011 in response to the financial crisis of 2008. The guidance addresses counterparty credit risk governance, measurement,

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management, and systems. Specifically, counterparty risk is managed through the establishment and regular review of exposure limits, formalization of limits in policy and procedure, ongoing review of models, and having a single platform to allow for the timely aggregation of exposures. The Counterparty Credit Risk Management team uses a variety of approaches to monitor counterparty financial performance, including monitoring of credit exposure versus limits, use of early warning reports, and daily and intraday monitoring of financial developments.

The Company has agreements with certain of its interest rate derivative counterparties that contain cross-default provisions, which provide that if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has agreements with certain of its derivative counterparties that contain a provision allowing the counterparty to terminate the derivative positions if the Company fails to maintain its status as a well or adequately capitalized institution, which would require the Company to settle its obligations under the agreements. If the Company were to breach any of these provisions, at a time when the derivatives subject to such agreements are in a liability position, and the derivatives were to be terminated as a result, the Company would be required to settle its obligations under the agreements at the termination value and would be required to pay any additional amounts due in excess of amounts previously posted as collateral with the respective counterparty. As of September 30, 2026, there were $43.9 million of derivatives that were subject to such agreements in a net liability position.

The Company records interest rate derivatives subject to master netting agreements at their gross value and does not offset derivative assets and liabilities on the Consolidated Statements of Condition. The table below summarizes the Company’s interest rate derivatives and offsetting positions as of the dates shown.

			Derivative Assets																		Derivative Liabilities
			Fair Value																		Fair Value
(In thousands)			September 30, 2026						December 31, 2025						September 30, 2025						September 30, 2026						December 31, 2025						September 30, 2025
Gross Amounts Recognized			$	194,881					$	175,534					$	201,318					$	369,376					$	120,604					$	138,789
Gross amounts not offset in the Statements of Condition
Offsetting Derivative Positions			(139,190)						(60,108)						(65,969)						(139,190)						(60,108)						(65,969)
Collateral Posted			(26,835)						(46,894)						(59,598)						(44,387)						(1,963)						(1,686)
Net Credit Exposure			$	28,856					$	68,532					$	75,751					$	185,799					$	58,533					$	71,134

(14) Fair Value of Assets and Liabilities

The Company measures, monitors and discloses certain of its assets and liabilities on a fair value basis. These financial assets and financial liabilities are measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the inputs used to determine fair value. These levels are:

•Level 1—unadjusted quoted prices in active markets for identical assets or liabilities.

•Level 2—inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

•Level 3—significant unobservable inputs that reflect the Company’s own assumptions that market participants would use in pricing the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

A financial instrument’s categorization within the above valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the assets or liabilities. The following is a description of the valuation methodologies used for the Company’s assets and liabilities measured at fair value on a recurring basis.

Available-for-sale debt securities, trading account securities and equity securities with readily determinable fair value—Fair values for available-for-sale debt securities, trading account securities and equity securities with readily determinable fair value are typically based on prices obtained from independent pricing vendors. Securities measured with these valuation techniques

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are generally classified as Level 2 of the fair value hierarchy. Typically, standard inputs such as benchmark yields, reported trades for similar securities, issuer spreads, benchmark securities, bids, offers and reference data including market research publications are used to determine the fair value of these securities. When these inputs are not available, broker/dealer quotes may be obtained by the vendor to determine the fair value of the security. We review the vendor’s pricing methodologies to determine if observable market information is being used, versus unobservable inputs. Fair value measurements using significant inputs that are unobservable in the market due to limited activity or a less liquid market are classified as Level 3 in the fair value hierarchy. The fair value of U.S. Treasury securities and certain equity securities with readily determinable fair value are based on unadjusted quoted prices in active markets for identical securities. As such, these securities are classified as Level 1 in the fair value hierarchy.

The Company’s Investment Operations Department is responsible for the valuation of Level 3 available-for-sale debt securities. The methodology and variables used as inputs in pricing Level 3 securities are derived from a combination of observable and unobservable inputs. The unobservable inputs are determined through internal assumptions that may vary from period to period due to external factors, such as market movement and credit rating adjustments.

At September 30, 2026, the Company classified $119.7 million of municipal securities as Level 3. These municipal securities are bond issuances for various municipal government entities primarily located in the Chicago metropolitan area, southern Wisconsin and west Michigan and are privately placed, non-rated bonds without CUSIP numbers. The Company’s methodology for pricing these securities focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated investment debt security, the Investment Operations Department references a rated, publicly issued bond by the same issuer if available. A reduction is then applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one complete rating grade (i.e., a “AA” rating for a comparable bond would be reduced to “A” for the Company’s valuation). For bond issuances without comparable bond proxies, a rating of “BBB” was assigned. In the third quarter of 2026, all of the ratings derived by the Investment Operations Department using the above process were “BBB” or better. The fair value measurement noted above is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined in the above process, Investment Operations obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Certain municipal bonds held by the Company at September 30, 2026 are continuously callable. When valuing these bonds, the fair value is capped at par value as the Company assumes a market participant would not pay more than par for a continuously callable bond.

Mortgage loans held-for-sale—The fair value of mortgage loans held-for-sale is typically determined by reference to investor price sheets for loan products with similar characteristics. Loans measured with this valuation technique are classified as Level 2 in the fair value hierarchy.

At September 30, 2026, the Company classified $52.7 million of certain delinquent mortgage loans held-for-sale as Level 3. For such delinquent loans in which investor interest may be limited, the Company estimates fair value by discounting future scheduled cash flows for the specific loan through its life, adjusted for estimated credit losses. The Company uses a discount rate based on prevailing market coupon rates on loans with similar characteristics. The assumed weighted average discount rate used as an input to value these loans at September 30, 2026 was 6.41%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. Additionally, the weighted average credit discount used as an input to value the specific loans was 0.66% with credit loss discount ranging from 0.00% to 29.73% at September 30, 2026.

Loans held-for-investment—The fair value of loans held-for-investment is typically determined by reference to investor price sheets for loan products with similar characteristics. Loans measured with this valuation technique are classified as Level 2 in the fair value hierarchy.

The fair value for certain loans in which the Company previously elected the fair value option is estimated by discounting future scheduled cash flows for the specific loan through maturity, adjusted for estimated credit losses and prepayment or life assumptions. These loans primarily consist of early buyout loans guaranteed by U.S. government agencies that are delinquent and, as a result, investor interest may be limited. The Company uses a discount rate based on the actual coupon rate of the underlying loan. At September 30, 2026, the Company classified $50.5 million of loans held-for-investment carried at fair value as Level 3. The assumed weighted average discount rate used as an input to value these loans at September 30, 2026 was 6.46%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. As noted above, the fair value estimate also includes assumptions of prepayment speeds and average life as well as credit losses. The weighted average prepayments speed used as an input to value current loans was 7.56% at September 30, 2026. Prepayment speeds are inversely related to the fair value of these loans as an increase in prepayment speeds results in a decreased valuation.

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For delinquent loans in which performance is not assumed and there is a higher probability of resolution of the loan ending in foreclosure, the weighted average life of such loans was 5.3 years. Average life is inversely related to the fair value of these loans as an increase in estimated life results in a decreased valuation. Additionally, the weighted average credit discount used as an input to value the specific loans was 1.78% with credit loss discounts ranging from 0.00% to 37.98% at September 30, 2026.

MSRs—Fair value for MSRs is determined utilizing a valuation model which calculates the fair value of each servicing right based on the present value of estimated future cash flows. The Company uses a discount rate commensurate with the risk associated with each servicing right, given current market conditions. At September 30, 2026, the Company classified $238.5 million of MSRs as Level 3. The weighted average discount rate used as an input to value the pool of MSRs at September 30, 2026 was 9.82% with discount rates applied ranging from 9.00% to 13.00%. The higher the rate utilized to discount estimated future cash flows, the lower the fair value measurement. The fair value of MSRs was also estimated based on other assumptions including prepayment speeds and the cost to service. Prepayment speeds ranged from 5.78% to 100.00% or a weighted average prepayment speed of 7.56%. Further, for current and delinquent loans, the Company assumed a weighted average cost of servicing of $76 and $375, respectively, per loan. Prepayment speeds and the cost to service are both inversely related to the fair value of MSRs as an increase in prepayment speeds or the cost to service results in a decreased valuation. See Note (8) “Mortgage Servicing Rights (“MSRs”)” in Item 1 of this report for further discussion of MSRs.

Derivative instruments—The Company’s derivative instruments include swaps, collars and purchased options such as caps and floors, commitments to fund mortgages for sale into the secondary market (interest rate locks), forward commitments to end investors for the sale of mortgage loans, commodity future contracts and foreign currency contracts. Swaps, collars and purchased options such as caps and floors and commodity future contracts are valued by a third party, using models that primarily use market observable inputs, such as yield curves and commodity prices prevailing at the measurement date, and are classified as Level 2 in the fair value hierarchy. The credit risk associated with derivative financial instruments that are subject to master netting agreements is measured on a net basis by counterparty portfolio. The fair value for mortgage-related derivatives is based on changes in mortgage rates from the date of the commitments. The fair value of foreign currency derivatives is computed based on change in foreign currency rates stated in the contract compared to those prevailing at the measurement date.

At September 30, 2026, the Company classified approximately $816,000 of derivative assets related to interest rate locks as Level 3. The fair value of interest rate locks is based on prices obtained for loans with similar characteristics from third parties, adjusted for the pull-through rate, which represents the Company’s best estimate of the likelihood that a committed loan will ultimately fund. The weighted-average pull-through rate at September 30, 2026 was 87.89% with pull-through rates applied ranging from 19.55% to 100%. Pull-through rates are directly related to the fair value of interest rate locks as an increase in the pull-through rate results in an increased valuation.

Nonqualified deferred compensation assets—The underlying assets relating to the nonqualified deferred compensation plan are included in a trust and primarily consist of non-exchange traded institutional funds which are priced by an independent third party service. These assets are classified as Level 2 in the fair value hierarchy.

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The following tables present the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented:

			September 30, 2026
(In thousands)			Total						Level 1						Level 2						Level 3
Available-for-sale securities
U.S. Treasury			$	3,000					$	3,000					$	—					$	—
U.S. government agencies			43,831						—						43,831						—
Municipal			164,324						—						44,648						119,676
Corporate notes			74,018						—						74,018						—
Mortgage-backed			7,284,325						—						7,284,325						—
Equity securities with readily determinable fair value			64,811						56,745						8,066						—
Mortgage loans held-for-sale			307,748						—						255,022						52,726
Loans held-for-investment			145,750						—						95,227						50,523
MSRs			238,485						—						—						238,485
Nonqualified deferred compensation assets			18,867						—						18,867						—
Derivative assets			205,591						—						204,775						816
Total			$	8,550,750					$	59,745					$	8,028,779					$	462,226
Derivative liabilities			$	375,745					$	—					$	375,745					$	—

						December 31, 2025
(In thousands)						Total						Level 1						Level 2						Level 3
Available-for-sale securities
U.S. Treasury						$	7,035					$	7,035					$	—					$	—
U.S. government agencies						47,471						—						47,471						—
Municipal						162,166						—						62,563						99,603
Corporate notes						77,295						—						77,295						—
Mortgage-backed						5,942,296						—						5,942,296						—
Equity securities with readily determinable fair value						63,770						55,704						8,066						—
Mortgage loans held-for-sale						340,745						—						286,931						53,814
Loans held-for-investment						151,590						—						95,390						56,200
MSRs						195,023						—						—						195,023
Nonqualified deferred compensation assets						18,112						—						18,112						—
Derivative assets						179,667						—						176,251						3,416
Total						$	7,185,170					$	62,739					$	6,714,375					$	408,056
Derivative liabilities						$	123,774					$	—					$	123,774					$	—

			September 30, 2025
(In thousands)			Total						Level 1						Level 2						Level 3
Available-for-sale securities
U.S. Treasury			$	8,036					$	8,036					$	—					$	—
U.S. government agencies			46,511						—						46,511						—
Municipal			194,244						—						64,450						129,794
Corporate notes			80,372						—						80,372						—
Mortgage-backed			4,944,961						—						4,944,961						—
Equity securities with readily determinable fair value			63,445						55,379						8,066						—
Mortgage loans held-for-sale			333,883						—						279,157						54,726
Loans held-for-investment			129,593						—						80,373						49,220
MSRs			190,938						—						—						190,938
Nonqualified deferred compensation assets			17,902						—						17,902						—
Derivative assets			208,957						—						201,808						7,149
Total			$	6,218,842					$	63,415					$	5,723,600					$	431,827
Derivative liabilities			$	141,705					$	—					$	141,705					$	—

The aggregate remaining contractual principal balance outstanding as of September 30, 2026, December 31, 2025 and September 30, 2025 for mortgage loans held-for-sale measured at fair value under ASC 825 was $318.7 million, $343.3 million and $339.1 million, respectively, while the aggregate fair value of mortgage loans held-for-sale was $307.7 million, $340.7 million and $333.9 million, for the same respective periods, as shown in the above tables. At September 30, 2026, $1.2 million

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of mortgage loans held-for-sale were classified as non-accrual compared to $700,000 as of December 31, 2025 and $200,000 as of September 30, 2025. Additionally, there were $52.1 million of loans past due greater than 90 days and still accruing in the mortgage loans held-for-sale portfolio as of September 30, 2026 compared to $53.1 million as of December 31, 2025 and $53.8 million as of September 30, 2025. All of the non-accrual loans and loans past due greater than 90 days and still accruing within the mortgage loans held-for-sale portfolio at September 30, 2026, December 31, 2025, and September 30, 2025 were individual delinquent mortgage loans bought back from GNMA at the unconditional option of the Company as servicer for those loans.

The aggregate remaining contractual principal balance outstanding as of September 30, 2026, December 31, 2025 and September 30, 2025 for loans held-for-investment measured at fair value under ASC 825 was $145.9 million, $148.1 million and $126.4 million, respectively, while the aggregate fair value of loans held-for-investment was $145.8 million, $151.6 million and $129.6 million, respectively, as shown in the above tables.

The changes in Level 3 assets measured at fair value on a recurring basis during the three and nine months ended September 30, 2026 and 2025 are summarized as follows:

									Mortgage loans held-for-sale												Loans held-for- investment						Mortgage servicing rights						Derivative assets
(In thousands)			Municipal
Balance at June 30, 2026			$	123,703					$	47,589											$	56,001					$	201,903					$	5,103
Total net (losses) gains included in:
Net income (1)			—						(299)												(459)						36,582						(4,287)
Other comprehensive income or loss			(4,599)						—												—						—						—
Purchases			573						—												—						—						—
Settlements			(1)						(12,993)												(17,105)						—						—
Net transfers into Level 3			—						18,429												12,086						—						—
Balance at September 30, 2026			$	119,676					$	52,726											$	50,523					$	238,485					$	816

									Mortgage loans held-for-sale												Loans held-for- investment						Mortgage servicing rights						Derivative assets
(In thousands)			Municipal
Balance at June 30, 2025			$	116,075					$	27,168											$	53,037					$	193,061					$	5,548
Total net (losses) gains included in:
Net income (1)			—						82												(663)						(2,123)						1,601
Other comprehensive income or loss			(937)						—												—						—						—
Purchases			14,696						—												—						—						—
Settlements			(40)						(7,182)												(11,810)						—						—
Net transfers into Level 3			—						34,658												8,656						—						—
Balance at September 30, 2025			$	129,794					$	54,726											$	49,220					$	190,938					$	7,149

									Mortgage loans held-for-sale												Loans held-for- investment						Mortgage servicing rights						Derivative Assets
(In thousands)			Municipal
Balance at December 31, 2025			$	99,603					$	53,814											$	56,200					$	195,023					$	3,416
Total net (losses) gains included in:
Net income (1)			—						(527)												(309)						43,462						(2,600)
Other comprehensive income or loss			(9,160)						—												—						—						—
Purchases			37,934						—												—						—						—
Settlements			(8,701)						(47,531)												(44,435)						—						—
Net transfers into Level 3			—						46,970												39,067						—						—
Balance at September 30, 2026			$	119,676					$	52,726											$	50,523					$	238,485					$	816

(1)Changes in the balance of mortgage loans held-for-sale, MSRs, and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

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									Mortgage loans held-for-sale												Loans held-for- investment						Mortgage servicing rights						Derivative Assets
(In thousands)			Municipal
Balance at December 31, 2024			$	121,607					$	60,399											$	34,896					$	203,788					$	1,950
Total net (losses) gains included in:
Net income (1)			—						1,534												173						(12,850)						5,199
Other comprehensive income or loss			(8,368)						—												—						—						—
Purchases			29,978						—												—						—						—
Settlements			(13,423)						(76,602)												(24,535)						—						—
Net transfers into Level 3			—						69,395												38,686						—						—
Balance at September 30, 2025			$	129,794					$	54,726											$	49,220					$	190,938					$	7,149

(1)Changes in the balance of mortgage loans held-for-sale, MSRs and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

Also, the Company may be required, from time to time, to measure certain other assets at fair value on a non-recurring basis in accordance with GAAP. These adjustments to fair value usually result from impairment charges on individual assets. For assets measured at fair value on a non-recurring basis that were still held in the balance sheet at the end of the period, the following table provides the carrying value of the related individual assets or portfolios at September 30, 2026:

			September 30, 2026																								Three Months Ended September 30, 2026 Fair Value Losses Recognized, net						Nine Months Ended September 30, 2026 Fair Value Losses Recognized, net
(In thousands)			Total						Level 1						Level 2						Level 3
Individually assessed loans - foreclosure probable and collateral-dependent			$	125,970					$	—					$	—					$	125,970					$	19,510					$	47,248
Other real estate owned			16,404						—						—						16,404						—						—
Total			$	142,374					$	—					$	—					$	142,374					$	19,510					$	47,248

Individually assessed loans—In accordance with ASC 326, the allowance for credit losses for loans and other financial assets

held at amortized cost should be measured on a collective or pooled basis when such assets exhibit similar risk characteristics. In instances in which a financial asset does not exhibit similar risk characteristics to a pool, the Company is required to measure such allowance for credit losses on an individual asset basis. For the Company’s loan portfolio, non-accrual loans are considered to not exhibit similar risk characteristics as pools and thus are individually assessed. Credit losses are measured by estimating the fair value of the loan based on the present value of expected cash flows, the market price of the loan, or the fair value of the underlying collateral. Individually assessed loans are considered a fair value measurement where an allowance for credit loss is established based on the fair value of collateral. Appraised values on relevant real estate properties, which may require adjustments to market-based valuation inputs, are generally used on foreclosure probable and collateral-dependent loans within the real estate portfolios.

The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 inputs of individually assessed loans. For more information on individually assessed loans refer to Note (6) “Allowance for Credit Losses” in Item 1 of this report. At September 30, 2026, the Company had $126.0 million of individually assessed loans classified as Level 3. All of the $126.0 million of individually assessed loans were measured at fair value based on the underlying collateral of the loan as shown in the table above.

Other real estate owned —Other real estate owned is comprised of real estate acquired in partial or full satisfaction of loans and is included in other assets. Other real estate owned is recorded at its estimated fair value less estimated selling costs at the date of transfer, with any excess of the related loan balance over the fair value less expected selling costs charged to the allowance for loan losses. Subsequent changes in value are reported as adjustments to the carrying amount and are recorded in other non-interest expense. Gains and losses upon sale, if any, are also charged to other non-interest expense. Fair value is generally based on third party appraisals and internal estimates that are adjusted by a discount representing the estimated cost of sale and is therefore considered a Level 3 valuation.

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The Company’s Managed Assets Division is primarily responsible for the valuation of Level 3 inputs for other real estate owned. At September 30, 2026, the Company had $16.4 million of other real estate owned classified as Level 3. The unobservable input applied to other real estate owned relates to the 10.00% reduction to the appraisal value representing the estimated cost of sale of the foreclosed property. A higher discount for the estimated cost of sale results in a decreased carrying value.

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at September 30, 2026 were as follows:

(Dollars in thousands)

Fair Value

Valuation Methodology

Significant Unobservable Input

Input / Range of Inputs

Weighted Average of Inputs

Impact to valuation from an increased or higher input value

Measured at fair value on a recurring basis:

Municipal securities

$

119,676

Bond pricing

Equivalent rating

BBB-AA+

N/A

Increase

Mortgage loans held-for-sale

52,726

Discounted cash flows

Discount rate

6.41%

6.41%

Decrease

Credit discount

0.00% - 29.73%

0.66%

Decrease

Loans held-for-investment

50,523

Discounted cash flows

Discount rate

6.41% - 7.38%

6.46%

Decrease

Credit discount

0.00% - 37.98%

1.78%

Decrease

Constant prepayment rate (CPR) - current loans

7.56%

7.56%

Decrease

Average life - delinquent loans (in years)

1.2 years - 12.3 years

5.3 years

Decrease

MSRs

238,485

Discounted cash flows

Discount rate

9.00% - 13.00%

9.82%

Decrease

Constant prepayment rate (CPR)

5.78% - 100.00%

7.56%

Decrease

Cost of servicing

$70 - $95

$

76

Decrease

Cost of servicing - delinquent

$200 - $1,000

$

375

Decrease

Derivatives

816

Discounted cash flows

Pull-through rate

19.55% - 100%

87.89

%

Increase

Measured at fair value on a non-recurring basis:

Individually assessed loans - foreclosure probable and collateral-dependent

125,970

Appraisal value

Appraisal adjustment - cost of sale

10.00%

10.00%

Decrease

Other real estate owned

16,404

Appraisal value

Appraisal adjustment - cost of sale

10.00%

10.00%

Decrease

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The Company is required under applicable accounting guidance to report the fair value of all financial instruments on the Consolidated Statements of Condition, including those financial instruments carried at cost. The table below presents the carrying amounts and estimated fair values of the Company’s financial instruments as of the dates shown:

			At September 30, 2026												At December 31, 2025												At September 30, 2025
			Carrying						Fair						Carrying						Fair						Carrying						Fair
(In thousands)			Value						Value						Value						Value						Value						Value
Financial Assets:
Cash and cash equivalents			$	635,657					$	635,657					$	467,938					$	467,938					$	565,469					$	565,469
Interest-bearing deposits with banks			3,557,687						3,557,687						3,180,553						3,180,553						3,422,452						3,422,452
Available-for-sale securities			7,569,498						7,569,498						6,236,263						6,236,263						5,274,124						5,274,124
Held-to-maturity securities			3,120,503						2,393,520						3,343,905						2,785,147						3,438,406						2,860,970
Equity securities with readily determinable fair value			64,811						64,811						63,770						63,770						63,445						63,445
FHLB and FRB stock, at cost			296,171						296,171						291,881						291,881						282,755						282,755
Mortgage loans held-for-sale, at fair value			307,748						307,748						340,745						340,745						333,883						333,883
Loans held-for-investment, at fair value			145,750						145,750						151,590						151,590						129,593						129,593
Loans held-for-investment, at amortized cost			56,658,821						55,783,051						52,953,511						52,383,501						51,933,889						51,255,561
Nonqualified deferred compensation assets			18,867						18,867						18,112						18,112						17,902						17,902
Derivative assets			205,591						205,591						179,667						179,667						208,957						208,957
Accrued interest receivable and other			593,339						593,339						552,197						552,197						587,274						587,274
Total financial assets			$	73,174,443					$	71,571,690					$	67,780,132					$	66,651,364					$	66,258,149					$	65,002,385
Financial Liabilities:
Non-maturity deposits			$	51,190,169					$	51,190,169					$	47,839,241					$	47,839,241					$	46,292,925					$	46,292,925
Deposits with stated maturities			11,245,047						11,229,646						9,877,950						9,890,485						10,418,456						10,424,097
FHLB advances			3,450,680						3,443,200						3,451,309						3,472,538						3,151,309						3,185,090
Other borrowings			355,554						355,554						477,966						478,072						579,328						579,479
Subordinated notes			298,903						292,731						298,636						296,487						298,536						295,974
Junior subordinated debentures			253,566						253,515						253,566						253,591						253,566						253,591
Derivative liabilities			375,745						375,745						123,774						123,774						141,705						141,705
Accrued interest payable			62,219						62,219						62,884						62,884						69,453						69,453
Total financial liabilities			$	67,231,883					$	67,202,779					$	62,385,326					$	62,417,072					$	61,205,278					$	61,242,314

Not all the financial instruments listed in the table above are subject to the disclosure provisions of ASC Topic 820, as certain assets and liabilities result in their carrying value approximating fair value. These include cash and cash equivalents, interest-bearing deposits with banks, brokerage customer receivables, FHLB and FRB stock, accrued interest receivable and accrued interest payable and non-maturity deposits.

The following methods and assumptions were used by the Company in estimating fair values of financial instruments that were not previously disclosed.

Held-to-maturity securities — Held-to-maturity securities include U.S. government-sponsored agency securities, municipal bonds issued by various municipal government entities primarily located in the Chicago metropolitan area, southern Wisconsin, and west Michigan and mortgage-backed securities. Fair values for held-to-maturity securities are typically based on prices obtained from independent pricing vendors. In accordance with ASC 820, the Company has generally categorized these held-to-maturity securities as a Level 2 fair value measurement. Fair values for certain other held-to-maturity securities are based on the bond pricing methodology discussed previously related to certain available-for-sale securities. In accordance with ASC 820, the Company has categorized these held-to-maturity securities as a Level 3 fair value measurement.

Loans held-for-investment, at amortized cost — Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are analyzed by type (commercial, residential real estate, etc.) and category within each type (construction, non-construction, franchise lending etc.). Each category is further segmented by interest rate type (fixed and variable). The fair value of both fixed and variable rate loans is estimated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect credit and interest rate risks inherent in the loan. In accordance with ASC 820, the Company has categorized loans as a Level 3 fair value measurement.

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Deposits with stated maturities — The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently in effect for deposits of similar remaining maturities. In accordance with ASC 820, the Company has categorized deposits with stated maturities as a Level 3 fair value measurement.

FHLB advances — The fair value of FHLB advances is calculated using a discounted cash flow analysis based on current market rates of similar maturity debt securities to discount cash flows. In accordance with ASC 820, the Company has categorized FHLB advances as a Level 3 fair value measurement.

Subordinated notes — The fair value of the subordinated notes is based on a market price obtained from an independent pricing vendor. In accordance with ASC 820, the Company has categorized subordinated notes as a Level 2 fair value measurement.

Junior subordinated debentures — The fair value of the junior subordinated debentures is based on the discounted value of contractual cash flows. In accordance with ASC 820, the Company has categorized junior subordinated debentures as a Level 3 fair value measurement.

(15) Stock-Based Compensation Plans

As of September 30, 2026, approximately 1,862,000 shares were available for future grants, assuming the maximum number of shares are issued for the performance awards outstanding, approved under the Company Stock Incentive Plans (“the Plans”). Descriptions of the Plans are included in Note (18) “Stock Compensation Plans and Other Employee Benefit Plans” of the 2025 Form 10-K.

Stock-based compensation expense recognized in the Consolidated Statements of Income was $11.9 million in the third quarter of 2026 and $10.1 million in the third quarter of 2025, and $34.9 million and $30.6 million in the nine months ended September 30, 2026 and 2025, respectively.

A summary of the Plans’ stock option activity for the nine months ended September 30, 2026 and September 30, 2025 is presented below:

Stock Options			Common Shares						Weighted Average Strike Price						Remaining Contractual Term (1)						Intrinsic Value (2) (in thousands)
Balance at December 31, 2025			5,675						$	44.81
Exercised			(2,325)						40.97
Outstanding at September 30, 2026			3,350						$	47.47					2.3						$	316
Exercisable at September 30, 2026			3,350						$	47.47					2.3						$	316

Stock Options			Common Shares						Weighted Average Strike Price						Remaining Contractual Term (1)						Intrinsic Value (2) (in thousands)
Balance at December 31, 2024			10,825						$	43.76
Exercised			(5,150)						42.61
Outstanding at September 30, 2025			5,675						$	44.81					3.0						$	497
Exercisable at September 30, 2025			5,675						$	44.81					3.0						$	497

(1)Represents the remaining weighted average contractual life in years.

(2)Aggregate intrinsic value represents the total pre-tax intrinsic value (i.e., the difference between the Company’s stock price on the last trading day of the quarter and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the quarter. Options with exercise prices above the stock price on the last trading day of the quarter are excluded from the calculation of intrinsic value. The intrinsic value will change based on the fair market value of the Company’s stock.

The aggregate intrinsic value of options exercised during the nine months ended September 30, 2026 and September 30, 2025, was approximately $250,000 and $467,000, respectively. Cash received from option exercises under the Plans for the nine months ended September 30, 2026 and September 30, 2025 was approximately $95,000 and $220,000, respectively.

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A summary of the Plans’ restricted share activity for the nine months ended September 30, 2026 and September 30, 2025 is presented below:

			Nine months ended September 30, 2026												Nine months ended September 30, 2025
Restricted Shares			Common Shares						Weighted Average Grant-Date Fair Value						Common Shares						Weighted Average Grant-Date Fair Value
Outstanding at December 31			888,398						$	101.63					880,866						$	90.95
Granted			267,358						153.36						256,762						133.15
Vested and issued			(289,049)						93.58						(218,276)						94.41
Forfeited or canceled			(30,623)						126.66						(24,156)						109.48
Outstanding at September 30			836,084						$	120.23					895,196						$	101.71
Vested, but deferred, at September 30			103,330						$	56.63					101,820						$	55.31

A summary of the Plans’ performance-based stock award activity, based on the target level of the awards, for the nine months ended September 30, 2026 and September 30, 2025 is presented below:

			Nine months ended September 30, 2026												Nine months ended September 30, 2025
Performance-based Stock			Common Shares						Weighted Average Grant-Date Fair Value						Common Shares						Weighted Average Grant-Date Fair Value
Outstanding at December 31			377,757						$	102.38					454,017						$	93.57
Granted			86,224						148.35						88,257						134.58
Added by performance factor at vesting, net			9,242						—						75,461						—
Vested and issued			(196,899)						90.33						(230,957)						95.26
Forfeited or canceled			(2,576)						121.03						(8,218)						107.24
Outstanding at September 30			273,748						$	125.98					378,560						$	102.35
Vested, but deferred, at September 30			—						$	—					13,283						$	40.87

(16) Accumulated Other Comprehensive Income or Loss and Earnings Per Share

Accumulated Other Comprehensive Income or Loss

The following tables summarize the components of other comprehensive income or loss, including the related income tax effects, and the related amount reclassified to net income for the periods presented:

(In thousands)			Accumulated Unrealized (Losses) Gains on Securities						Accumulated Unrealized (Losses) Gains on Derivative Instruments						Accumulated Foreign Currency Translation Adjustments						Total Accumulated Other Comprehensive (Loss) Income
Balance at June 30, 2026			$	(353,779)					$	(3,065)					$	(63,954)					$	(420,798)
Other comprehensive loss during the period, net of tax, before reclassifications			(337,472)						(101,784)						(897)						(440,153)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax			—						(2,821)						—						(2,821)
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax			(4)						—						—						(4)
Net other comprehensive loss during the period, net of tax			$	(337,476)					$	(104,605)					$	(897)					$	(442,978)
Balance at September 30, 2026			$	(691,255)					$	(107,670)					$	(64,851)					$	(863,776)
Balance at December 31, 2025			$	(292,829)					$	49,912					$	(52,837)					$	(295,754)
Other comprehensive loss during the period, net of tax, before reclassifications			(398,438)						(148,410)						(12,014)						(558,862)
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax			28						(9,172)						—						(9,144)
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax			(16)						—						—						(16)
Net other comprehensive loss during the period, net of tax			$	(398,426)					$	(157,582)					$	(12,014)					$	(568,022)
Balance at September 30, 2026			$	(691,255)					$	(107,670)					$	(64,851)					$	(863,776)

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Balance at June 30, 2025			$	(369,968)					$	53,920					$	(50,185)					$	(366,233)
Other comprehensive income (loss) during the period, net of tax, before reclassifications			55,886						(754)						(7,423)						47,709
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax			(199)						3,922						—						3,723
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax			(7)						—						—						(7)
Net other comprehensive income (loss) during the period, net of tax			$	55,680					$	3,168					$	(7,423)					$	51,425
Balance at September 30, 2025			$	(314,288)					$	57,088					$	(57,608)					$	(314,808)
Balance at December 31, 2024			$	(429,580)					$	(11,227)					$	(67,528)					$	(508,335)
Other comprehensive income during the period, net of tax, before reclassifications			115,227						56,523						9,920						181,670
Amount reclassified from accumulated other comprehensive income or loss into net income, net of tax			88						11,792						—						11,880
Amount reclassified from accumulated other comprehensive income or loss related to amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale, net of tax			(23)						—						—						(23)
Net other comprehensive income during the period, net of tax			$	115,292					$	68,315					$	9,920					$	193,527
Balance at September 30, 2025			$	(314,288)					$	57,088					$	(57,608)					$	(314,808)

(In thousands)						Amount Reclassified from Accumulated Other Comprehensive Income or Loss for the
Details Regarding the Component of Accumulated Other Comprehensive Income or Loss						Three Months Ended												Nine Months Ended												Impacted Line on the Consolidated Statements of Income
						September 30,												September 30,
						2026						2025						2026						2025
Accumulated unrealized gains (losses) gains on securities
Gains (losses) included in net income						$	—					$	269					$	(37)					$	(119)					(Losses) gains on investment securities, net
						—						269						(37)						(119)						Income before taxes
Tax effect						—						(70)						9						31						Income tax expense
Net of tax						$	—					$	199					$	(28)					$	(88)					Net income
Accumulated unrealized gains (losses) gains on derivative instruments
Amount reclassified to interest income on loans						$	(487)					$	8,625					$	(2,419)					$	25,911					Interest on loans
Amount reclassified to interest expense on deposits						(3,325)						(3,325)						(9,975)						(9,975)						Interest on deposits
						3,812						(5,300)						12,394						(15,936)						Income before taxes
Tax effect						(991)						1,378						(3,222)						4,144						Income tax expense
Net of tax						$	2,821					$	(3,922)					$	9,172					$	(11,792)					Net income

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Earnings per Share

The following table shows the computation of basic and diluted earnings per share for the periods indicated:

									Three Months Ended												Nine Months Ended
(Dollars in thousands, except per share data)									September 30, 2026						September 30, 2025						September 30, 2026						September 30, 2025
Net income									$	239,054					$	216,254					$	700,135					$	600,820
Less: Preferred stock dividends									8,367						13,295						25,101						27,277
Less: Preferred stock redemption									—						14,046						—						14,046
Net income applicable to common shares			(A)						$	230,687					$	188,913					$	675,034					$	559,497
Weighted average common shares outstanding			(B)						67,467						66,952						67,383						66,871
Effect of dilutive potential common shares
Common stock equivalents									911						1,028						876						945
Weighted average common shares and effect of dilutive potential common shares			(C)						68,378						67,980						68,259						67,816
Net income per common share:
Basic			(A/B)						$	3.42					$	2.82					$	10.02					$	8.37
Diluted			(A/C)						$	3.37					$	2.78					$	9.89					$	8.25

Potentially dilutive common shares can result from stock options, restricted stock unit awards and shares to be issued under the Employee Stock Purchase Plan and the Directors Deferred Fee and Stock Plan, being treated as if they had been either exercised or issued, computed by application of the treasury stock method. While potentially dilutive common shares are typically included in the computation of diluted earnings per share, potentially dilutive common shares are excluded from this computation in periods in which the effect of inclusion would either reduce the loss per share or increase the income per share.

At the January 2026 meeting of the Board of Directors of the Company (the “Board of Directors”), a quarterly cash dividend of $0.55 per share ($2.20 on an annualized basis) was declared. It was paid on February 19, 2026 to shareholders of record as of February 5, 2026. At the April 2026 meeting of the Board of Directors, a quarterly cash dividend of $0.55 per share ($2.20 on an annualized basis) was declared. It was paid on May 28, 2026 to shareholders of record as of May 14, 2026. At the July 2026 meeting of the Board of Directors, a quarterly cash dividend of $0.55 per share ($2.20 on an annualized basis) was declared. It was paid on August 20, 2026 to shareholders of record as of August 6, 2026.

ITEM 2

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL

CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of the financial condition of Wintrust Financial Corporation and its subsidiaries (collectively, “Wintrust” or the “Company”) as of September 30, 2026 compared with December 31, 2025 and September 30, 2025, and the results of operations for the three and nine month periods ended September 30, 2026 and September 30, 2025, should be read in conjunction with the unaudited consolidated financial statements and notes contained in this report and the risk factors discussed under Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 (“2025 Form 10-K”) and in Part II, Item 1A, of this Form 10-Q. This discussion contains forward-looking statements that involve risks and uncertainties and, as such, future results could differ significantly from management’s current expectations. See the last section of this discussion for further information on forward-looking statements.

Introduction

Wintrust is a financial holding company that provides traditional community and commercial banking services and offers a full array of wealth management services, primarily to customers in the Chicago metropolitan area, southern Wisconsin, northwest Indiana, and west Michigan, and operates other financing businesses on a national basis and in Canada through several non-bank businesses.

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Overview

Third Quarter Highlights

The Company recorded net income of $239.1 million for the third quarter of 2026 compared to $216.3 million in the third quarter of 2025. The results for the third quarter of 2026 demonstrate increased net interest income due to growth in earning assets as well as the Company’s ability to navigate disruptions in the current economic environment during the period due to the Company’s strong deposit franchise and balanced business model. Partially offsetting the increase in net interest income was an increase in non-interest expense. The increase in non-interest expense was a result of additional expenses to support growth. Comprehensive income includes 1) net income as presented on the Company’s Consolidated Statements of Income and 2) other comprehensive income or loss from unrealized gains and losses on the Company’s available-for-sale investment securities portfolios and derivative contracts designated as cash flow hedges as well as foreign currency translation adjustments. Comprehensive income totaled $203.9 million for the third quarter of 2026 compared to $267.7 million for the third quarter of 2025.

The Company increased its loan portfolio from $52.1 billion at September 30, 2025 and $53.1 billion at December 31, 2025 to $56.8 billion at September 30, 2026. The increase in the current period compared to the prior periods was a result of growth across all major loan categories. For more information regarding changes in the Company’s loan portfolio, see Financial Condition – Interest Earning Assets and Note (5) “Loans” of the Consolidated Financial Statements in Item 1 of this report.

The Company recorded net interest income of $621.6 million in the third quarter of 2026 compared to $567.0 million in the third quarter of 2025. This increase in net interest income recorded in the third quarter of 2026 compared to the third quarter of 2025 resulted primarily from growth in earning assets, specifically a $4.6 billion increase in average loans. Net interest margin was 3.49% (3.51% on a fully taxable-equivalent basis, non-GAAP) in the third quarter of 2026 compared to 3.48% (3.50% on a fully taxable-equivalent basis, non-GAAP) in the third quarter of 2025. The increase in net interest margin is primarily due to lower rates paid on interest-bearing liabilities partially offset by lower loan yields (see “Net Interest Income” for further detail).

Non-interest income totaled $136.3 million in the third quarter of 2026 compared to $130.8 million in the third quarter of 2025. The increase in the third quarter of 2026 is primarily due to an increase in wealth management revenue of $3.8 million, an increase in operating lease income of $3.0 million, and an increase in service charges on deposit accounts of $2.3 million compared to the third quarter of 2025. This was partially offset by losses on investment securities in the third quarter of 2026 compared to the third quarter of 2025 (see “Non-Interest Income” for further detail).

Non-interest expense totaled $405.7 million in the third quarter of 2026, an increase of $25.6 million, or 7%, compared to the third quarter of 2025. This increase compared to the third quarter of 2025 was largely attributable to increased salaries and employee benefits of $10.9 million (see “Non-Interest Expense” for further detail).

Management considers the maintenance of adequate liquidity to be important to the management of risk. Accordingly, during the third quarter of 2026, the Company continued its practice of maintaining appropriate funding capacity to provide the Company with adequate liquidity for its ongoing operations. In this regard, the Company benefited from its strong deposit base, a liquid investment portfolio and its access to funding from a variety of external funding sources. See “Shareholders’ Equity”, “Deposits” and “Other Funding Sources” for additional information regarding liquidity sources.

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RESULTS OF OPERATIONS

Earnings Summary

The Company’s key operating measures and growth rates for the three and nine months ended September 30, 2026, as compared to the same periods last year, are shown below:

			Three Months Ended
(Dollars in thousands, except per share data)			September 30, 2026						September 30, 2025						Percentage (%) or Basis Point (bp) Change
Net income			$	239,054					$	216,254					11		%
Pre-tax income, excluding provision for credit losses (non-GAAP) (1)			352,212						317,809						11
Net income per common share—Diluted			3.37						2.78						21
Net revenue (2)			757,877						697,837						9
Net interest income			621,604						567,010						10
Net interest margin			3.49		%				3.48		%				1		bps
Net interest margin - fully taxable-equivalent (non-GAAP) (1)			3.51						3.50						1
Net overhead ratio (3)			1.44						1.45						(1)
Return on average assets			1.27						1.26						1
Return on average common equity			12.83						11.58						125
Return on average tangible common equity (non-GAAP) (1)			14.89						13.74						115

			Nine months ended
(Dollars in thousands, except per share data)			September 30, 2026						September 30, 2025						Percentage (%) or Basis Point (bp) Change
Net income			$	700,135					$	600,820					17		%
Pre-tax income, excluding provision for credit losses (non-GAAP) (1)			1,023,844						884,149						16
Net income per common share—Diluted			9.89						8.25						20
Net revenue (2)			2,209,678						2,011,728						10
Net interest income			1,797,994						1,640,178						10
Net interest margin			3.51		%				3.51		%				—		bps
Net interest margin - fully taxable-equivalent (non-GAAP) (1)			3.53						3.53						—
Net overhead ratio (3)			1.43						1.53						(10)
Return on average assets			1.30						1.22						8
Return on average common equity			12.80						11.94						86
Return on average tangible common equity (non-GAAP) (1)			14.89						14.28						61
At end of period
Total assets			$	75,971,620					$	69,629,638					9		%
Total loans, excluding loans held-for-sale			56,804,571						52,063,482						9
Total loans, including loans held-for-sale			57,112,319						52,397,365						9
Total deposits			62,435,216						56,711,381						10
Total shareholders’ equity			7,289,546						7,045,757						3
Book value per common share (1)			101.74						98.87						3
Tangible common book value per share (non-GAAP) (1)			88.18						85.39						3
Market price per common share			141.82						132.44						7
Allowance for loan and unfunded lending-related commitment losses to total loans			0.86		%				0.87		%				(1)		bps

(1)See following section titled “Supplemental Non-GAAP Financial Measures/Ratios” for additional information on this performance measure/ratio.

(2)Net revenue is net interest income plus non-interest income.

(3)The net overhead ratio is calculated by netting total non-interest expense and total non-interest income, annualizing this amount, and dividing by that period’s total average assets. A lower ratio indicates a higher degree of efficiency.

Certain returns, yields, performance ratios, and quarterly growth rates are “annualized” throughout this report to represent an annual time period. This is done for analytical purposes to better discern for decision-making purposes underlying performance trends when compared to full-year or year-over-year amounts. For example, balance sheet growth rates are most often expressed in terms of an annual rate. As such, 5% growth during a quarter would represent an annualized growth rate of 20%.

SUPPLEMENTAL NON-GAAP FINANCIAL MEASURES/RATIOS

The accounting and reporting policies of Wintrust conform to generally accepted accounting principles (“GAAP”) in the United States and prevailing practices in the banking industry. However, certain non-GAAP performance measures and ratios are used by management to evaluate and measure the Company’s performance. These include taxable-equivalent net interest income (including its individual components), taxable-equivalent net interest margin (including its individual components), the taxable-

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equivalent efficiency ratio, tangible common equity ratio, tangible book value per common share, return on average tangible common equity and pre-tax income, excluding provision for credit losses. Management believes that these measures and ratios provide users of the Company’s financial information a more meaningful view of the performance of the Company’s interest-earning assets and interest-bearing liabilities and of the Company’s operating efficiency. Other financial holding companies may define or calculate these measures and ratios differently.

Management reviews yields on certain asset categories and the net interest margin of the Company and its banking subsidiaries on a fully taxable-equivalent (“FTE”) basis. In this non-GAAP presentation, net interest income is adjusted to reflect tax-exempt interest income on an equivalent before-tax basis using tax rates effective as of the end of the period. This measure ensures comparability of net interest income arising from both taxable and tax-exempt sources. Net interest income on an FTE basis is also used in the calculation of the Company’s efficiency ratio. The efficiency ratio, which is calculated by dividing non-interest expense by total taxable-equivalent net revenue (less securities gains or losses), measures how much it costs to produce one dollar of revenue. Securities gains or losses are excluded from this calculation to better match revenue from daily operations to operational expenses. Management considers the tangible common equity ratio and tangible book value per common share as useful measurements of the Company’s equity. The Company references the return on average tangible common equity as a measurement of profitability. Management considers pre-tax income, excluding provision for credit losses as a useful measurement of the Company’s core net income.

A reconciliation of certain non-GAAP performance measures and ratios used by the Company to evaluate and measure the Company’s performance to the most directly comparable GAAP financial measures is shown below:

			Three Months Ended																		Nine Months Ended
			September 30,						June 30,						September 30,						September 30,						September 30,
(Dollars and shares in thousands)			2026						2026						2025						2026						2025
Reconciliation of Non-GAAP Net Interest Margin and Efficiency Ratio:
(A) Interest Income (GAAP)			$	1,002,861					$	961,412					$	963,834					$	2,891,833					$	2,771,707
Taxable-equivalent adjustment:
- Loans			2,151						2,111						2,154						6,288						6,560
- Liquidity Management Assets			610						630						675						1,826						2,045
- Other Earning Assets			—						—						—						—						3
(B) Interest Income (non-GAAP)			$	1,005,622					$	964,153					$	966,663					$	2,899,947					$	2,780,315
(C) Interest Expense (GAAP)			381,257						364,046						396,824						1,093,839						1,131,529
(D) Net Interest Income (GAAP) (A minus C)			621,604						597,366						567,010						1,797,994						1,640,178
(E) Net Interest Income, fully taxable-equivalent (non-GAAP) (B minus C)			624,365						600,107						569,839						1,806,108						1,648,786
Net interest margin (GAAP)			3.49		%				3.50		%				3.48		%				3.51		%				3.51		%
Net interest margin, fully taxable-equivalent (non-GAAP)			3.51						3.52						3.50						3.53						3.53
(F) Non-interest income			$	136,273					$	141,269					$	130,827					$	411,684					$	371,550
(G) (Losses) gains on investment securities, net			(1,621)						1,845						2,972						193						6,818
(H) Non-interest expense			405,665						397,537						380,028						1,185,834						1,127,579
Efficiency ratio (H/(D+F-G))			53.41		%				53.96		%				54.69		%				53.67		%				56.24		%
Efficiency ratio (non-GAAP) (H/(E+F-G))			53.22						53.76						54.47						53.47						56.00
Reconciliation of Non-GAAP Tangible Common Equity Ratio:
Total shareholders’ equity (GAAP)			$	7,289,546					$	7,525,116					$	7,045,757
Less: Non-convertible preferred stock (GAAP)			(425,000)						(425,000)						(425,000)
Less: Acquisition-related intangible assets (GAAP)			(914,694)						(885,338)						(902,936)
(I) Total tangible common shareholders’ equity (non-GAAP)			$	5,949,852					$	6,214,778					$	5,717,821
(J) Total assets (GAAP)			$	75,971,620					$	74,668,135					$	69,629,638
Less: Acquisition-related intangible assets (GAAP)			(914,694)						(885,338)						(902,936)
(K) Total tangible assets (non-GAAP)			$	75,056,926					$	73,782,797					$	68,726,702
Common equity to assets ratio (GAAP) (L/J)			9.0		%				9.5		%				9.5		%
Tangible common equity ratio (non-GAAP) (I/K)			7.9						8.4						8.3
Reconciliation of Non-GAAP Tangible Book Value per Common Share:
Total shareholders’ equity			$	7,289,546					$	7,525,116					$	7,045,757
Less: Non-convertible preferred stock (GAAP)			(425,000)						(425,000)						(425,000)
(L) Total common equity			$	6,864,546					$	7,100,116					$	6,620,757
(M) Actual common shares outstanding			67,472						67,455						66,961
Book value per common share (L/M)			$	101.74					$	105.26					$	98.87
Tangible book value per common share (non-GAAP) (I/M)			88.18						92.13						85.39

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Reconciliation of Non-GAAP Return on Average Tangible Common Equity:
(N) Net income applicable to common shares			$	230,687					$	225,326					$	188,913					$	675,034					$	559,497
Add: Acquisition-related intangible asset amortization			4,686						4,921						5,196						14,565						16,394
Less: Tax effect of acquisition-related intangible asset amortization			(1,251)						(1,304)						(1,403)						(3,772)						(4,328)
After-tax acquisition-related intangible asset amortization			$	3,435					$	3,617					$	3,793					$	10,793					$	12,066
(O) Tangible net income applicable to common shares (non-GAAP)			$	234,122					$	228,943					$	192,706					$	685,827					$	571,563
Total average shareholders’ equity			$	7,558,263					$	7,474,449					$	6,955,543					$	7,474,100					$	6,761,319
Less: Average preferred stock			(425,000)						(425,000)						(483,288)						(425,000)						(498,626)
(P) Total average common shareholders’ equity			$	7,133,263					$	7,049,449					$	6,472,255					$	7,049,100					$	6,262,693
Less: Average acquisition-related intangible assets			(895,137)						(889,059)						(906,032)						(892,805)						(910,972)
(Q) Total average tangible common shareholders’ equity (non-GAAP)			$	6,238,126					$	6,160,390					$	5,566,223					$	6,156,295					$	5,351,721
Return on average common equity, annualized (N/P)			12.83		%				12.82		%				11.58		%				12.80		%				11.94		%
Return on average tangible common equity, annualized (non-GAAP) (O/Q)			14.89						14.91						13.74						14.89						14.28

Reconciliation of Non-GAAP Pre-Tax, Pre-Provision Income:
Income before taxes			$	326,333					$	317,964					$	296,041					$	945,237					$	816,184
Add: Provision for credit losses			25,879						23,134						21,768						78,607						67,965
Pre-tax income, excluding provision for credit losses (non-GAAP)			$	352,212					$	341,098					$	317,809					$	1,023,844					$	884,149

			Three Months Ended																		Nine Months Ended
			September 30,						June 30,						September 30,						September 30,						September 30,
(Dollars and shares in thousands, except per share data)			2026						2026						2025						2026						2025
Reconciliation of Non-GAAP Net Income per Common Share:
Net income			$	239,054					$	233,693					$	216,254					$	700,135					$	600,820
Preferred stock dividends			8,367						8,367						13,295						25,101						27,277
Preferred stock redemption			—						—						14,046						—						14,046
(R) Net income applicable to common shares			$	230,687					$	225,326					$	188,913					$	675,034					$	559,497
(S) Weighted average common shares outstanding			67,467						67,434						66,952						67,383						66,871
Dilutive potential common shares			911						852						1,028						876						945
(T) Average common shares and dilutive common shares			68,378						68,286						67,980						68,259						67,816
Net income per common share - Basic (R/S)			$	3.42					$	3.34					$	2.82					$	10.02					$	8.37
Net income per common share - Diluted (R/T)			$	3.37					$	3.30					$	2.78					$	9.89					$	8.25
Preferred stock series F excess one-time extended first dividend			$	—					$	—					$	4,927					$	—					$	4,927
Preferred stock redemption			—						—						14,046						—						14,046
(U) Total non-recurring preferred stock offering impact (non-GAAP)			$	—					$	—					$	18,973					$	—					$	18,973
Net income per common share - Basic (non-GAAP) (R+U)/S			$	3.42					$	3.34					$	3.11					$	10.02					$	8.65
Net income per common share - Diluted (non-GAAP) (R+U)/T			$	3.37					$	3.30					$	3.06					$	9.89					$	8.53

Critical Accounting Estimates

The Company’s Consolidated Financial Statements are prepared in accordance with GAAP in the United States, prevailing practices of the banking industry, and the application of accounting policies of which are described in Note (1) “Summary of Significant Accounting Policies” to the Consolidated Financial Statements in Item 8 of the Company’s 2025 Form 10-K. These policies require numerous estimates and strategic or economic assumptions, which may prove inaccurate or subject to variations. Changes in underlying factors, assumptions or estimates could have a material impact on the Company’s future financial condition and results of operations. At September 30, 2026, management views critical accounting estimates to include the determination of the allowance for credit losses, estimations of fair value, and the valuation and accounting for derivative instruments, as the accounting areas that require the most subjective and complex judgments, and as such could be most subject to revision as new information becomes available. These estimates were reviewed by the Audit Committee of the Company’s Board of Directors and are discussed in further detail below.

Allowance for Credit Losses, including the Allowance for Loan Losses, Allowance for Losses on Lending-Related Commitments and Allowance for Held-to-Maturity Debt Securities

The allowance for credit losses represents management’s estimate of expected credit losses over the life of a financial asset carried at amortized cost. Determining the amount of the allowance for credit losses is considered a critical accounting estimate because it requires significant judgment and includes the use of estimates related to the fair value of the underlying collateral and amount and timing of expected future cash flows on individually assessed financial assets, estimated credit losses on pools of loans with similar risk characteristics, and consideration of reasonable and supportable forecasts of macroeconomic conditions, all of which are susceptible to significant change. Management also applies judgment in developing qualitative adjustments to reflect elements of credit risk that are not fully captured in the quantitative loss models. The Company also maintains an allowance for lending-related commitments, specifically unfunded loan commitments and letters of credit, which

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relates to certain amounts the Company is committed to lend (not unconditionally cancelable) but for which funds have not yet been disbursed. At September 30, 2026, the loan and held-to-maturity debt securities portfolios represent 79% of total assets on the Company’s consolidated balance sheet.

Key macroeconomic variable data points that are significant inputs into our credit loss models for the commercial and commercial real estate portfolios are the Baa corporate credit spread, the Dow Jones Total Stock Market Index for the commercial portfolio, and the Commercial Real Estate Price Index ("CREPI") related to the commercial real estate portfolio. Holding all other inputs constant, the table below shows the impact of changes in these key macroeconomic variable data points on the estimate of allowance for credit losses.

Impact to estimated allowance for credit losses from an increased or higher input value

Baa Credit Spread

Increases

Dow Jones Total Stock Market Index

Decreases

CRE Price Index

Decreases

Holding all other inputs constant, the following table provides a sensitivity analysis for the commercial and commercial real estate portfolios based on a 10 basis point change in Baa credit spreads from the assumption utilized in the estimate of that portfolio’s allowance for credit losses at September 30, 2026:

Baa Credit Spread
			Narrows			Widens
Commercial			Decreases estimate by 0%-5%			Increases estimate by 5%-10%
Commercial Real Estate:
Construction			Decreases estimate by 5%-10%			Increases estimate by 5%-10%
Non-Construction			Decreases estimate by 3%-4%			Increases estimate by 3%-4%

Holding all other inputs constant, the following table provides a sensitivity analysis for the commercial portfolio based on a 10% change in the Dow Jones Total Stock Market Index from the assumption utilized in the estimate of that portfolio’s allowance for credit losses at September 30, 2026:

Dow Jones Total Stock Market Index
			Increases			Decreases
Commercial			Decreases estimate by 10%-15%			Increases estimate by 10%-15%

Holding all other inputs constant, the following table provides a sensitivity analysis for the commercial real estate construction and non-construction portfolios based on a 10% change in CREPI from the assumption utilized in the estimate of that portfolio’s allowance for credit losses at September 30, 2026:

CRE Price Index
			Increases			Decreases
Commercial Real Estate:
Construction			Decreases estimate by 30%-35%			Increases estimate by 135%-140%
Non-Construction			Decreases estimate by 20%-25%			Increases estimate by 30%-35%

See Note (6) “Allowance for Credit Losses” to the Consolidated Financial Statements in Item 1 of this report and the section titled “Credit Quality” in Item 2 of this report for a description of the methodology used to determine the allowance for credit losses.

For a more detailed discussion on these critical accounting estimates, see “Summary of Critical Accounting Estimates” beginning on page 56 of the 2025 Form 10-K.

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Net Income

Net income for the quarter ended September 30, 2026 totaled $239.1 million, an increase of $22.8 million, or 11%, compared to the quarter ended September 30, 2025. On a per share basis, net income for the third quarter of 2026 totaled $3.37 per diluted common share compared to $2.78 for the third quarter of 2025.

The increase in net income for the third quarter of 2026 as compared to the same period in the prior year is primarily attributable to increased net interest income and an increase in non-interest income, partially offset by increased non-interest expense primarily due to increased salary and employee benefits expenses. See “Net Interest Income,” “Non-interest Income,” “Non-interest Expense” and “Credit Quality” for further detail.

Net Interest Income

The primary source of the Company’s revenue is net interest income. Net interest income is the difference between interest income and fees on earning assets, such as loans and securities, and interest expense on the liabilities to fund those assets, including interest-bearing deposits and other borrowings. The amount of net interest income is affected by both changes in the level of interest rates, and the amount and composition of earning assets and interest bearing liabilities.

Quarter Ended September 30, 2026 compared to the Quarters Ended June 30, 2026 and September 30, 2025

The following table presents a summary of the Company’s average balances, net interest income and related net interest margins, including a calculation on a fully taxable-equivalent basis, for the third quarter of 2026 as compared to the second quarter of 2026 (sequential quarters) and third quarter of 2025 (linked quarters):

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			Average Balance for three months ended,																		Interest for three months ended,																		Yield/Rate for three months ended,
(Dollars in thousands)			Sep 30, 2026						Jun 30, 2026						Sep 30, 2025						Sep 30, 2026						Jun 30, 2026						Sep 30, 2025						Sep 30, 2026						Jun 30, 2026						Sep 30, 2025
Interest-bearing deposits with banks, securities purchased under resale agreements and cash equivalents (1)			$	2,853,369					$	2,412,081					$	3,276,683					$	25,595					$	20,921					$	35,067					3.56		%				3.48		%				4.25		%
Investment securities (2)			11,073,179						10,832,538						9,377,930						112,884						106,346						87,101						4.04						3.94						3.68
FHLB and FRB stock			294,088						292,325						282,338						5,932						5,625						5,444						8.00						7.72						7.65
Liquidity management assets (3) (7)			$	14,220,636					$	13,536,944					$	12,936,951					$	144,411					$	132,892					$	127,612					4.03		%				3.94		%				3.91		%
Mortgage loans held-for-sale			362,329						402,175						295,365						5,761						6,169						4,757						6.31						6.15						6.39
Loans, net of unearned income (3) (4) (7)			55,982,688						54,491,469						51,403,566						855,450						825,092						834,294						6.06						6.07						6.44
Total earning assets (7)			$	70,565,653					$	68,430,588					$	64,635,882					$	1,005,622					$	964,153					$	966,663					5.65		%				5.65		%				5.93		%
Allowance for loan and investment security losses			(413,132)						(405,743)						(410,681)
Cash and due from banks			539,220						519,586						495,292
Other assets			3,708,430						3,617,292						3,582,543
Total assets			$	74,400,171					$	72,161,723					$	68,303,036
NOW and interest-bearing demand deposits			$	7,283,497					$	6,453,420					$	6,687,292					$	37,394					$	32,318					$	40,448					2.04		%				2.01		%				2.40		%
Wealth management deposits			1,566,292						1,485,347						1,604,142						6,895						6,823						8,415						1.75						1.84						2.08
Money market accounts			22,860,299						22,000,942						19,431,021						174,404						165,035						169,831						3.03						3.01						3.47
Savings accounts			6,570,130						6,707,916						6,723,325						23,197						25,729						38,844						1.40						1.54						2.29
Time deposits			11,256,456						10,938,312						10,319,719						99,127						95,128						98,308						3.49						3.49						3.78
Interest-bearing deposits			$	49,536,674					$	47,585,937					$	44,765,499					$	341,017					$	325,033					$	355,846					2.73		%				2.74		%				3.15		%
Federal Home Loan Bank advances			3,450,683						3,450,773						3,151,310						29,086						28,218						26,007						3.34						3.28						3.27
Other borrowings			393,031						358,511						614,892						3,430						3,121						6,887						3.46						3.49						4.44
Subordinated notes			298,844						298,757						298,481						3,721						3,739						3,717						4.94						5.02						4.94
Junior subordinated debentures			253,566						253,566						253,566						4,003						3,935						4,367						6.26						6.22						6.83
Total interest-bearing liabilities			$	53,932,798					$	51,947,544					$	49,083,748					$	381,257					$	364,046					$	396,824					2.80		%				2.81		%				3.21		%
Non-interest-bearing deposits			11,417,869						11,273,344						10,791,709
Other liabilities			1,491,241						1,466,386						1,472,036
Equity			7,558,263						7,474,449						6,955,543
Total liabilities and shareholders’ equity			$	74,400,171					$	72,161,723					$	68,303,036
Interest rate spread (5) (7)																																							2.85		%				2.84		%				2.72		%
Less: Fully taxable-equivalent adjustment																					(2,761)						(2,741)						(2,829)						(0.02)						(0.02)						(0.02)
Net free funds/contribution (6)			$	16,632,855					$	16,483,044					$	15,552,134																							0.66						0.68						0.78
Net interest income/margin (GAAP) (7)																					$	621,604					$	597,366					$	567,010					3.49		%				3.50		%				3.48		%
Fully taxable-equivalent adjustment																					2,761						2,741						2,829						0.02						0.02						0.02
Net interest income/margin, fully taxable-equivalent (non-GAAP) (7)																					$	624,365					$	600,107					$	569,839					3.51		%				3.52		%				3.50		%

(1)Includes interest-bearing deposits with banks and securities purchased under resale agreements with original maturities of greater than three months. Cash equivalents include federal funds sold and securities purchased under resale agreements with original maturities of three months or less.

(2)Investment securities includes investment securities classified as available-for-sale and held-to-maturity, and equity securities with readily determinable fair values. Equity securities without readily determinable fair values are included within other assets.

(3)Interest income on tax-advantaged loans, trading securities and investment securities reflects a tax-equivalent adjustment based on the marginal federal corporate tax rate in effect as of the applicable period. The total adjustments for the three months ended September 30, 2026, June 30, 2026 and September 30, 2025 were $2.8 million, $2.7 million and $2.8 million, respectively.

(4)Loans, net of unearned income, include non-accrual loans.

(5)Interest rate spread is the difference between the yield earned on earning assets and the rate paid on interest-bearing liabilities.

(6)Net free funds are the difference between total average earning assets and total average interest-bearing liabilities. The estimated contribution to net interest margin from net free funds is calculated using the rate paid for total interest-bearing liabilities.

(7)See “Supplemental Non-GAAP Financial Measures/Ratios” for additional information on this performance measure/ratio.

For the third quarter of 2026, net interest income totaled $621.6 million, an increase of $24.2 million as compared to the second quarter of 2026, and an increase of $54.6 million as compared to the third quarter of 2025. Net interest margin was 3.49% (3.51% on a FTE basis, non-GAAP) during the third quarter of 2026 compared to 3.50% (3.52% on a FTE basis, non-GAAP) during the second quarter of 2026, and 3.48% (3.50% on a FTE basis, non-GAAP) during the third quarter of 2025.

The following table presents a summary of the Company’s net interest income and related net interest margin, including a calculation on a fully taxable-equivalent basis, for the nine months ended September 30, 2026 compared to the nine months ended September 30, 2025:

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			Average Balance for nine months ended,												Interest for nine months ended,												Yield/Rate for nine months ended,
(Dollars in thousands)			September 30, 2026												September 30, 2025						September 30, 2026												September 30, 2025						September 30, 2026												September 30, 2025
Interest-bearing deposits with banks, securities purchased under resale agreements and cash equivalents(1)			$	2,506,398											$	3,367,419					$	65,730											$	106,605					3.51		%										4.23		%
Investment securities (2)			10,842,451												8,866,621						320,094												238,540						3.95												3.60
FHLB and FRB stock			292,803												282,016						17,121												16,144						7.82												7.65
Liquidity management assets (3)(8)			$	13,641,652											$	12,516,056					$	402,945											$	361,289					3.95		%										3.86		%
Other earning assets (3)(4)(8)			—												4,332						—												92						—												2.84
Mortgage loans held-for-sale			360,683												297,568						16,545												13,875						6.13												6.23
Loans, net of unearned income (3)(5)(8)			54,451,438												49,597,938						2,480,457												2,405,059						6.09												6.48
Total earning assets (8)			$	68,453,773											$	62,415,894					$	2,899,947											$	2,780,315					5.66		%										5.96		%
Allowance for loan and investment security losses			(403,640)												(395,041)
Cash and due from banks			531,017												483,543
Other assets			3,651,647												3,594,449
Total assets			$	72,232,797											$	66,098,845
NOW and interest-bearing demand deposits			$	6,610,449											$	6,387,859					$	99,378											$	111,565					2.01		%										2.34		%
Wealth management deposits			1,635,663												1,577,312						22,659												25,203						1.85												2.14
Money market accounts			22,012,031												18,405,748						494,738												472,095						3.01												3.43
Savings accounts			6,731,813												6,594,716						79,598												112,404						1.58												2.28
Time deposits			10,664,360												9,859,196						278,864												288,282						3.50												3.91
Interest-bearing deposits			$	47,654,316											$	42,824,831					$	975,237											$	1,009,549					2.74		%										3.15		%
Federal Home Loan Bank advances			3,450,920												3,151,310						85,005												77,172						3.29												3.27
Other borrowings			397,733												597,016						10,577												20,636						3.56												4.62
Subordinated notes			298,755												298,396						11,179												11,166						5.00												5.00
Junior subordinated debentures			253,566												253,566						11,841												13,006						6.24												6.86
Total interest-bearing liabilities			$	52,055,290											$	47,125,119					$	1,093,839											$	1,131,529					2.81		%										3.21		%
Non-interest-bearing deposits			11,220,029												10,722,772
Other liabilities			1,483,378												1,489,635
Equity			7,474,100												6,761,319
Total liabilities and shareholders’ equity			$	72,232,797											$	66,098,845
Interest rate spread (6)(8)																																							2.85		%										2.75		%
Less: Fully taxable-equivalent adjustment																					(8,114)												(8,608)						(0.02)												(0.02)
Net free funds/contribution (7)			$	16,398,483											$	15,290,775																							0.68												0.78
Net interest income/margin (GAAP) (8)																					$	1,797,994											$	1,640,178					3.51		%										3.51		%
Fully taxable-equivalent adjustment																					8,114												8,608						0.02												0.02
Net interest income/margin, fully taxable-equivalent (non-GAAP) (8)																					$	1,806,108											$	1,648,786					3.53		%										3.53		%

(1)Includes interest-bearing deposits with banks and securities purchased under resale agreements with original maturities of greater than three months. Cash equivalents include federal funds sold and securities purchased under resale agreements with original maturities of three months or less.

(2)Investment securities includes investment securities classified as available-for-sale and held-to-maturity, and equity securities with readily determinable fair values. Equity securities without readily determinable fair values are included within other assets.

(3)Interest income on tax-advantaged loans, trading securities and investment securities reflects a taxable-equivalent adjustment based on a marginal federal corporate tax rate in effect as of the applicable period. The total adjustments for the nine months ended September 30, 2026 and September 30, 2025 were $8.1 million and $8.6 million, respectively.

(4)Other earning assets include brokerage customer receivables and trading account securities.

(5)Loans, net of unearned income, include non-accrual loans.

(6)Interest rate spread is the difference between the yield earned on earning assets and the rate paid on interest-bearing liabilities.

(7)Net free funds are the difference between total average earning assets and total average interest-bearing liabilities. The estimated contribution to net interest margin from net free funds is calculated using the rate paid for total interest-bearing liabilities.

(8)See “Supplemental Non-GAAP Financial Measures/Ratios” for additional information on this performance ratio.

Analysis of Changes in Net Interest Income on a FTE basis (non-GAAP)

The following table presents an analysis of the changes in the Company’s net interest income on a FTE basis (non-GAAP) comparing the three month period ended September 30, 2026 to each of the three month periods ended June 30, 2026 and September 30, 2025 and nine month periods ended September 30, 2026 and 2025. The reconciliations set forth the changes in the net interest income on a FTE basis (non-GAAP) as a result of changes in volumes, changes in rates and differing number of days in each period:

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			Third Quarter of 2026 Compared to Second Quarter of 2026						Third Quarter of 2026 Compared to Third Quarter of 2025						First Nine Months of 2026 Compared to First Nine Months of 2025
(In thousands)
Net interest income, FTE basis (non-GAAP) (1) for comparative period			$	600,107					$	569,839					$	1,648,786
Change due to mix and growth of earning assets and interest-bearing liabilities (volume)			16,470						48,532						151,363
Change due to interest rate fluctuations (rate)			1,266						5,994						5,959
Change due to number of days in each period			6,522						—						—
Less: FTE adjustment			(2,761)						(2,761)						(8,114)
Net interest income (GAAP) (1) for the period ended September 30, 2026			$	621,604					$	621,604					$	1,797,994
FTE adjustment			2,761						2,761						8,114
Net interest income, FTE basis (non-GAAP) (1)			$	624,365					$	624,365					$	1,806,108

(1) See “Supplemental Non-GAAP Financial Measures/Ratios” for additional information on this performance measure/ratio.

Non-interest Income

The following table presents non-interest income by category for the periods presented:

			Three Months Ended												$ Change						% Change
(Dollars in thousands)			September 30, 2026						September 30, 2025
Brokerage			$	5,144					$	4,426					$	718					16		%
Trust and asset management			35,823						32,762						3,061						9
Total wealth management (1)			40,967						37,188						3,779						10
Mortgage banking			25,532						24,451						1,081						4
Service charges on deposit accounts			22,161						19,825						2,336						12
(Losses) gains on investment securities, net			(1,621)						2,972						(4,593)						NM
Fees from covered call options			4,585						5,619						(1,034)						(18)
Trading gains, net			48						172						(124)						(72)
Operating lease income, net			18,447						15,466						2,981						19
Other:
Interest rate swap fees			3,757						3,909						(152)						(4)
BOLI			846						1,591						(745)						(47)
Administrative services			1,437						1,240						197						16
Foreign currency remeasurement losses			(433)						(416)						(17)						4
Changes in fair value on EBOs and loans held-for-investment			(356)						1,452						(1,808)						NM
Early pay-offs of capital leases			928						519						409						79
Miscellaneous (2)			19,975						16,839						3,136						19
Total Other			26,154						25,134						1,020						4
Total Non-interest Income			$	136,273					$	130,827					$	5,446					4		%

(1)Wealth management revenue is comprised of the trust and asset management revenue of Wintrust Private Trust Company, N.A. (“WPT”) and Great Lakes Advisors, the brokerage commissions, managed money fees and insurance product commissions at Wintrust Investments and fees from tax-deferred like-kind exchange services provided by CDEC.

(2)Miscellaneous non-interest income includes loan servicing fees, income from other investments, and other fees.

 NM—Not Meaningful.

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			Nine Months Ended												$ Change						% Change
(Dollars in thousands)			September 30, 2026						September 30, 2025
Brokerage			$	15,430					$	13,395					$	2,035					15		%
Trust and asset management			107,479						94,656						12,823						14
Total wealth management (1)			122,909						108,051						14,858						14
Mortgage banking			76,366						68,150						8,216						12
Service charges on deposit accounts			64,371						58,689						5,682						10
Gains on investment securities, net			193						6,818						(6,625)						(97)
Fees from covered call options			14,047						14,689						(642)						(4)
Trading gains, net			128						259						(131)						(51)
Operating lease income, net			56,405						45,919						10,486						23
Other:
Interest rate swap fees			10,915						9,188						1,727						19
BOLI			5,010						4,644						366						8
Administrative services			4,021						3,948						73						2
Foreign currency remeasurement (losses) gains			(548)						59						(607)						NM
Changes in fair value on EBOs and loans held-for-investment			(1,016)						2,007						(3,023)						NM
Early pay-offs of capital leases			3,180						1,687						1,493						89
Miscellaneous (2)			55,703						47,442						8,261						17
Total Other			77,265						68,975						8,290						12
Total Non-interest Income			$	411,684					$	371,550					$	40,134					11		%

(1)Wealth management revenue is comprised of the trust and asset management revenue of Wintrust Private Trust Company, N.A. (“WPT”) and Great Lakes Advisors, the brokerage commissions, managed money fees and insurance product commissions at Wintrust Investments and fees from tax-deferred like-kind exchange services provided by CDEC.

(2)Miscellaneous non-interest income includes loan servicing fees, income from other investments, and other fees.

 NM—Not Meaningful.

Notable contributions to the change in non-interest income are as follows:

Mortgage banking revenue increased for the three months ended September 30, 2026 compared to the same period in 2025, primarily driven by favorable MSR fair value adjustments, partially offset by hedge performance, lower production revenue and unfavorable FV adjustments on EBO loans. The quarter-over-quarter improvement reflects favorable impact of interest rate movements on MSR valuations. On a year-to-date basis, mortgage banking revenue increased for the nine months ended September 30, 2026 as compared to the same period in 2025, primarily due to higher MSR fair value adjustments and higher MSR capitalization, partially offset by negative hedge and EBO valuations. Mortgage banking revenue includes revenue from activities related to originating, selling and servicing residential real estate loans for the secondary market. A main factor in the mortgage banking revenue recognized by the Company is the volume of mortgage loans originated or purchased for sale and the related production margins. Mortgage loans originated for sale totaled $618.6 million in the third quarter of 2026 as compared to $643.4 million in the third quarter of 2025. On a year-to-date basis, mortgage loans originated for sale totaled $2.0 billion for the nine months ended September 30, 2026 as compared to $1.8 billion for nine months ended September 30, 2025. The percentage of origination volume from refinancing activities was 20% and 31% for the three and nine months ended September 30, 2026, as compared to 23% and 24% for the same periods in 2025, respectively.

The Company records MSRs at fair value on a recurring basis. The fair value of the MSRs portfolio net increase for the three months ended September 30, 2026 was a result of the capitalization of $7.1 million of retained servicing rights and a favorable fair value adjustment of $34.9 million. This was partially offset by a reduction in value of $5.4 million due to payoffs, paydowns and repurchases of the existing portfolio. The fair value of the MSRs portfolio net increase for the nine months ended September 30, 2026 was a result of the capitalization of $22.3 million of retained servicing rights and a favorable fair value adjustment of $39.7 million. This was partially offset by a reduction in value of $18.5 million due to payoffs and paydowns and repurchases of the existing portfolio. See Note (8) “Mortgage Servicing Rights (“MSRs”)” to the Consolidated Financial Statements in Item 1 of this report for a summary of the changes in the carrying value of MSRs.

Mortgage banking revenue is also impacted by changes in the fair value of derivative contracts held to economically hedge a portion of the fair value adjustments related to the Company’s MSRs portfolio. The change in fair value of the derivative contracts held as an economic hedge was an unfavorable $27.7 million and $32.0 million for the three and nine months ended

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September 30, 2026 compared to a favorable $265,000 and $7.7 million for the three and nine months ended September 30, 2025.

Wealth management revenue increased for the three and nine months ended September 30, 2026 compared to the same periods in 2025, primarily due to trust and asset management revenue. Wealth management revenue is comprised of the trust and asset management revenue of Wintrust Private Trust Company and Great Lakes Advisors, the brokerage commissions, managed money fees and insurance product commissions at Wintrust Investments and fees from tax-deferred like-kind exchange services provided by the Chicago Deferred Exchange Company.

Service charges on deposits increased for the three and nine months ended September 30, 2026 as compared to the same periods in 2025 primarily as a result of increased account analysis service fees. Service charges on deposit accounts include fees charged to deposit customers for various services, including account analysis services, and are based on factors such as the size and type of customer, type of product and number of transactions. The fees are based on a standard schedule of fees and, depending on the nature of the service performed, the service is performed at a point in time or over a period of a month.

Net losses on investment securities of $1.6 million and a net gain of $193,000 were recognized by the Company for the three and nine months ended September 30, 2026, respectively, versus net gains of $3.0 million and $6.8 million recorded during the same periods in 2025. The primary driver of these gains and losses was the impact of unrealized gains and losses on equity investment securities with a readily determinable fair value. Further information regarding net gains and losses on investment securities can be found in Note (4) “Investment Securities” to the Consolidated Financial Statements in Item 1 of this report.

Operating lease income increased for the three and nine months ended September 30, 2026 compared to the same periods in 2025, primarily due to gains on sale of leased assets and additional lease rental income due to growth in leased assets.

Miscellaneous non-interest income increased $3.1 million and $8.3 million for the three and nine months ended September 30, 2026, respectively, compared to the same periods in 2025. The increase was primarily due to gains on sale of assets, higher fees earned on card-related arrangements, letters of credit and syndications fees.

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The table below presents additional selected information regarding mortgage banking for the respective periods.

						Three Months Ended												Nine Months Ended
(Dollars in thousands)						September 30, 2026												September 30, 2025						September 30, 2026						September 30, 2025
Originations:
Retail originations						$	487,106											$	505,793					$	1,589,180					$	1,378,020
Veterans First originations						131,447												137,600						458,335						407,372
Total originations for sale (A)						$	618,553											$	643,393					$	2,047,515					$	1,785,392
Originations for investment						289,296												351,012						976,323						991,115
Total originations						$	907,849											$	994,405					$	3,023,838					$	2,776,507
As percentage of originations for sale:
Retail originations						79		%										79		%				78		%				77		%
Veterans First originations						21												21						22						23
Purchases						80		%										77		%				69		%				76		%
Refinances						20												23						31						24
Production Margin:
Production revenue (B) (1)						$	10,902											$	15,388					$	37,080					$	38,709
Total originations for sale (A)						$	618,553											$	643,393					$	2,047,515					$	1,785,392
Add: Current period end mandatory interest rate lock commitments to fund originations for sale (2)						93,178												307,932						93,178						307,932
Less: Prior period end mandatory interest rate lock commitments to fund originations for sale (2)						171,656												163,664						122,804						103,946
Total mortgage production volume (C)						$	540,075											$	787,661					$	2,017,889					$	1,989,378
Production margin (B/C)						2.02		%										1.95		%				1.84		%				1.95		%
Mortgage Servicing:
Loans serviced for others (D)						$	12,790,822											$	12,524,131
MSRs, at fair value (E)						238,485												190,938
Percentage of MSRs to loans serviced for others (E/D)						1.86		%										1.52		%
Servicing income						$	10,678											$	10,112					$	31,755					$	31,243
MSR Fair Value Asset Activity
MSR - FV at Beginning of Period						$	201,903											$	193,061					$	195,023					$	203,788
MSR - Current period capitalization						7,083												5,829						22,262						16,834
MSR - Collection of expected cash flows - paydowns						(1,839)												(1,554)						(5,143)						(4,660)
MSR - Collection of expected cash flows - payoffs and repurchases						(3,548)												(4,050)						(13,384)						(11,196)
MSR - Changes in fair value model assumptions						34,886												(2,348)						39,727						(13,828)
MSR Fair Value at end of period						$	238,485											$	190,938					$	238,485					$	190,938
Summary of Mortgage Banking Revenue
Operational:
Production revenue (1)						$	10,902											$	15,388					$	37,080					$	38,709
MSR - Current period capitalization						7,083												5,829						22,262						16,834
MSR - Collection of expected cash flows - paydowns						(1,839)												(1,554)						(5,143)						(4,660)
MSR - Collection of expected cash flows - payoffs and repurchases						(3,548)												(4,050)						(13,384)						(11,196)
Servicing Income						10,678												10,112						31,755						31,243
Other Revenue						(282)												(345)						(255)						(596)
Total operational mortgage banking revenue						$	22,994											$	25,380					$	72,315					$	70,334
Fair Value:
MSR - changes in fair value model assumptions						$	34,886											$	(2,348)					$	39,727					$	(13,828)
(Loss) gain on derivative contract held as an economic hedge, net						(27,671)												265						(31,967)						7,697
Changes in FV on early buy-out loans guaranteed by US Govt held-for-sale						(4,677)												1,154						(3,709)						3,947
Total fair value mortgage banking revenue						$	2,538											$	(929)					$	4,051					$	(2,184)
Total mortgage banking revenue						$	25,532											$	24,451					$	76,366					$	68,150

(1)Production revenue represents revenue earned from the origination and subsequent sale of mortgages, including gains on loans sold and fees from originations, changes in other related financial instruments carried at fair value, processing and other related activities, and excludes servicing fees, changes in the fair value of servicing rights and changes to the mortgage recourse obligation and other non-production revenue.

(2)Certain volume adjusted for the estimated pull-through rate of the loan, which represents the Company’s best estimate of the likelihood that a committed loan will ultimately fund.

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Non-interest Expense

The following table presents non-interest expense by category for the periods presented:

			Three Months Ended												$ Change						% Change
(Dollars in thousands)			September 30, 2026						September 30, 2025
Salaries and employee benefits:
Salaries			$	128,618					$	124,623					$	3,995					3		%
Commissions and incentive compensation			61,911						56,244						5,667						10
Benefits			40,023						38,801						1,222						3
Total salaries and employee benefits			230,552						219,668						10,884						5
Software and equipment			39,179						35,027						4,152						12
Operating lease equipment			11,661						10,409						1,252						12
Occupancy, net			19,548						20,809						(1,261)						(6)
Data processing			11,218						11,329						(111)						(1)
Advertising and marketing			21,806						19,027						2,779						15
Professional fees			10,687						7,465						3,222						43
Amortization of other acquisition-related intangible assets			4,686						5,196						(510)						(10)
FDIC insurance			12,138						11,418						720						6
OREO expense, net			282						262						20						8
Other:
Lending expenses, net of deferred origination costs			6,196						6,169						27						0
Travel and entertainment			6,874						6,029						845						14
Miscellaneous (1)			30,838						27,220						3,618						13
Total other			43,908						39,418						4,490						11
Total Non-interest Expense			$	405,665					$	380,028					$	25,637					7		%

			Nine Months Ended												$ Change						% Change
(Dollars in thousands)			September 30, 2026						September 30, 2025
Salaries and employee benefits:
Salaries			$	387,579					$	371,714					$	15,865					4		%
Commissions and incentive compensation			181,781						164,651						17,130						10
Benefits			123,728						114,370						9,358						8
Total salaries and employee benefits			693,088						650,735						42,353						7
Software and equipment			114,121						106,266						7,855						7
Operating lease equipment			33,835						31,637						2,198						7
Occupancy, net			61,267						61,815						(548)						(1)
Data processing			33,143						34,713						(1,570)						(5)
Advertising and marketing			55,456						50,060						5,396						11
Professional fees			27,404						25,752						1,652						6
Amortization of other acquisition-related intangible assets			14,565						16,394						(1,829)						(11)
FDIC insurance			34,924						33,315						1,609						5
FDIC insurance - special assessment			(5,156)						—						(5,156)						(100)
OREO expense, net			1,275						1,410						(135)						(10)
Other:
Lending expenses, net of deferred origination costs			18,871						16,904						1,967						12
Travel and entertainment			19,238						17,325						1,913						11
Miscellaneous (1)			83,803						81,253						2,550						3
Total other			121,912						115,482						6,430						6
Total Non-interest Expense			$	1,185,834					$	1,127,579					$	58,255					5		%

(1) Miscellaneous non-interest expense includes ATM expenses, correspondent bank charges, directors’ fees, telephone, postage, corporate insurance, dues and subscriptions, problem loan expenses and other miscellaneous operational losses and costs.

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Notable contributions to the change in non-interest expense are as follows:

Salaries and employee benefits expense increased for the three and nine months ended September 30, 2026 as compared to the same periods in 2025. The increase was largely due to annual merit increases and higher commissions and incentive compensation related to the strong performance across the Company’s business lines.

Software and equipment expense increased for the three and nine months ended September 30, 2026 as compared to the same periods in 2025 as a result of higher software license fees as the Company invests in enhancements to the digital customer experience, upgrades to infrastructure and enhancements to information security capabilities. Software and equipment expense includes furniture, equipment and computer software, depreciation, and repairs and maintenance costs.

Advertising and marketing expense increased for the three and nine months ended September 30, 2026 as compared to the same periods in 2025. The increase was primarily driven by community sponsorship events along with digital marketing activities during the quarter. Marketing costs are incurred to promote the Company’s brand, commercial banking capabilities and the Company’s various products, to attract loans and deposits and to announce new branch openings as well as the expansion of the Company’s non-bank businesses.

Professional fees expense increased for the three and nine months ended September 30, 2026 as compared to the same period in 2025 primarily due to higher consulting fees. Professional fees include legal, audit, and tax fees, external loan review costs, consulting arrangements and normal regulatory exam assessments.

FDIC insurance expense remained relatively stable for the three months ended September 30, 2026 and decreased for the nine months ended September 30, 2026 compared to the same period in 2025. The year-to-date decrease is primarily the result of a reversal of the $5.2 million FDIC special assessment recorded in the first quarter of 2024 in response to certain bank failures in 2023. The reversal is based on the FDIC’s final determination of losses to its Deposit Insurance Fund.

Income Taxes

The Company recorded income tax expense of $87.3 million in the third quarter of 2026 compared to $79.8 million in the third quarter of 2025. The effective tax rates were 26.7% in the third quarter of 2026 compared to 27.0% in the third quarter of 2025. During the first nine months of 2026, the Company recorded income tax expense of $245.1 million compared to $215.4 million for the first nine months of 2025. The effective tax rates were 25.9% for the first nine months of 2026 and 26.4% for the first nine months of 2025.

The effective tax rates were partially impacted by the tax effects related to share-based compensation which fluctuate based on the Company’s stock price and timing of employee stock option exercises and vesting of other shared-based awards. The Company recorded net excess tax benefits of $6.9 million in the first nine months of 2026, compared to net excess tax benefits of $3.9 million in the first nine months of 2025 related to share-based compensation, the majority of which was recognized in the first quarter of each year.

Operating Segment Results

The Company’s operations consist of three primary segments: community banking, specialty finance and wealth management. Refer to Note (12) “Segment Information” to the Consolidated Financial Statements in Item 1 of this report for further information on the Company’s primary segments. The Company’s profitability is primarily dependent on the net interest income, provision for credit losses, non-interest income and operating expenses of its community banking segment.

The community banking segment’s net income increased during the three and nine months ended September 30, 2026 compared to the same periods in 2025, driven by the following changes in key revenue and expense line items. Net interest income increased in both periods primarily because of growth in average earning assets. Non-interest income decreased slightly during the three month period, largely due to losses on investment securities, but increased in the nine month period primarily because of increases in mortgage banking revenue and service charges on deposit accounts. The increase in provision for credit losses for the three and nine month periods was the result of losses within the Commercial portfolio, uncertainty within the macroeconomic forecast related to credit spreads and equity market valuations, and loan growth. Non-interest expenses also increased in both periods, primarily due to higher salaries, commissions, and incentive compensation.

The specialty finance segment’s net income for the three and nine months ended September 30, 2026 compared to the same periods in 2025 increased, driven by the following changes in key revenue and expense line items. Net interest income increased in both periods primarily due to loan growth. The provision for credit losses also increased in both periods as a result of loan growth coupled with uncertainty within the macroeconomic forecast related to credit spreads and equity market valuations, which impacted lease financing. Non-interest income increased in both periods, primarily due to an increase in operating lease income, while non-interest expenses increased primarily due to increases in salaries, commissions, and incentive

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compensation. For the nine month period ended September 30, 2026, property and casualty insurance premium finance operations, life insurance finance operations, lease financing operations and other specialty finance operations accounted for 40%, 26%, 24% and 10%, respectively, of the segment’s total net revenues.

The wealth management segment’s net income increased for the three and nine months ended September 30, 2026 compared to the same periods in 2025, driven by the following changes in key revenue and expense line items. Net interest income increased in both periods, and is primarily comprised of an allocation of net interest income earned by the community banking segment on non-interest-bearing and interest-bearing wealth management customer account balances on deposit at the banks. Non-interest income also increased in both periods driven primarily by higher brokerage and asset management fees. Non-interest expense remained relatively stable compared to the same periods in 2025. The Company remains focused on distributing wealth management services through each bank and is committed to growing this segment in order to better serve its customers and create a more diversified revenue stream.

Financial Condition

Total assets were $76.0 billion at September 30, 2026, representing an increase of $6.3 billion, or 9%, when compared to September 30, 2025 and an increase of approximately $1.3 billion, or 7% on an annualized basis, when compared to June 30, 2026. Total funding, which includes deposits, all notes and advances, including secured borrowings and the junior subordinated debentures, was $66.8 billion at September 30, 2026, $65.5 billion at June 30, 2026, and $61.0 billion at September 30, 2025. See Notes (4), (5), (9), (10) and (11) of the Consolidated Financial Statements presented under Item 1 of this report for additional period-end detail on the Company’s interest-earning assets and funding liabilities.

Interest-Earning Assets

The following table sets forth, by category, the composition of average earning asset balances and the relative percentage of total average earning assets for the periods presented:

			Three Months Ended
			September 30, 2026												June 30, 2026												September 30, 2025
(Dollars in thousands)			Balance						Percent						Balance						Percent						Balance						Percent
Mortgage loans held-for-sale			$	362,329					1		%				$	402,175					1		%				$	295,365					0		%
Loans, net of unearned income
Commercial			18,016,239						26						17,891,344						26						16,239,631						25
Commercial real estate			14,605,823						21						14,180,555						21						13,415,933						21
Home equity			500,003						1						484,218						1						475,046						1
Residential real estate			4,511,471						6						4,414,096						6						3,974,900						6
Premium finance receivables—property & casualty			8,743,121						12						8,144,372						12						8,524,414						13
Premium finance receivables—life insurance			9,420,955						13						9,237,963						13						8,638,561						13
Other loans			185,076						0						138,921						0						135,081						1
Total loans, net of unearned income (1)			$	55,982,688					79		%				$	54,491,469					79		%				$	51,403,566					80		%
Liquidity management assets (2)			14,220,636						20						13,536,944						20						12,936,951						20
Total average earning assets			$	70,565,653					100		%				$	68,430,588					100		%				$	64,635,882					100		%
Total average assets			$	74,400,171											$	72,161,723											$	68,303,036
Total average earning assets to total average assets									95		%										95		%										95		%

(1)Includes non-accrual loans.

(2)Liquidity management assets include investment securities, other securities, interest-earning deposits with banks, federal funds sold and securities purchased under resale agreements.

Mortgage loans held-for-sale. Mortgage loans held-for-sale represents such loans awaiting subsequent sale in the secondary market with such sales eliminating the interest-rate risk associated with these loans, as they are predominantly long-term fixed rate loans, and provide a source of non-interest revenue. The decrease in the average balance for the third quarter of 2026 as compared to the sequential period is primarily due to lower mortgage originations for sale.

Loans, net of unearned income. Growth realized in the combined commercial and commercial real estate loan categories for the third quarter of 2026 as compared to the sequential and prior year periods is primarily attributable to increased business

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development efforts. The aggregate balances of these loan categories comprised 58% of the average loan portfolio in the third quarter of 2026, 59% in the second quarter of 2026 and 58% in the third quarter of 2025.

Residential real estate loans averaged $4.5 billion in the third quarter of 2026, and increased $536.6 million, or 13%, from the average balance of $4.0 billion in the same period of 2025. Additionally, compared to the quarter ended June 30, 2026, the average balance increased $97.4 million, or 9% on an annualized basis. Growth is due to the Company continuing to originate non-agency mortgages that are held-for-investment.

The increase in the premium finance receivables during the third quarter of 2026 compared to the third quarter of 2025 was the result of effective marketing and customer servicing. Approximately $5.4 billion of premium finance receivables were originated in the third quarter of 2026 compared to $5.5 billion during the same period of 2025. Premium finance receivables consist of a property and casualty portfolio and a life portfolio comprising approximately 48% and 52%, respectively, of the average total balance of premium finance receivables for the third quarter of 2026, and 50% and 50%, respectively, for the third quarter of 2025.

Other loans represent a wide variety of personal and consumer loans to individuals. Consumer loans generally have shorter terms and higher interest rates than mortgage loans but generally involve more credit risk due to the type and nature of the collateral.

Liquidity management assets. Funds that are not utilized for loan originations are used to purchase investment securities and short-term money market investments, to sell as federal funds and to maintain in interest bearing deposits with banks. The balances of these assets can fluctuate based on management’s ongoing effort to manage liquidity and for asset liability management purposes. The Company will continue to prudently evaluate and utilize liquidity sources as needed, including the management of availability with the FHLB and FRB and utilization of the revolving credit facility with unaffiliated banks.

The following table sets forth, by category, the composition of average earning asset balances and the relative percentage of total average earning assets for the periods presented:

			Nine Months Ended
			September 30, 2026												September 30, 2025
(Dollars in thousands)			Balance						Percent						Balance						Percent
Mortgage loans held-for-sale			$	360,683					0		%				$	297,568					0		%
Loans, net of unearned income
Commercial			17,595,864						26						15,840,773						25
Commercial real estate			14,285,233						21						13,149,369						21
Home equity			485,949						1						461,153						1
Residential real estate			4,405,250						6						3,740,920						6
Premium finance receivables—property & casualty			8,280,894						12						7,831,182						13
Premium finance receivables—life insurance			9,245,675						14						8,448,993						14
Other loans			152,573						0						125,548						0
Total loans, net of unearned income (1)			$	54,451,438					80		%				$	49,597,938					80		%
Liquidity management assets (2)			13,641,652						20						12,516,056						20
Other earning assets (3)			—						—						4,332						0
Total average earning assets			$	68,453,773					100		%				$	62,415,894					100		%
Total average assets			$	72,232,797											$	66,098,845
Total average earning assets to total average assets									95		%										94		%

(1)Includes non-accrual loans.

(2)Liquidity management assets include investment securities, other securities, interest-earning deposits with banks, federal funds sold and securities purchased under resale agreements.

(3)Other earning assets include brokerage customer receivables and trading account securities.

Maturities and Sensitivities of Loans to Changes in Interest Rates

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The following table classifies the loan portfolio at September 30, 2026 by date at which the loans reprice or mature, and the type of rate exposure:

As of September 30, 2026			One year or less						From one to five years						From five to fifteen years						After fifteen years
(In thousands)																											Total
Commercial
Fixed rate			$	668,421					$	4,220,622					$	2,267,646					$	23,498					$	7,180,187
Variable rate			11,157,780						3,798						—						—						11,161,578
Total commercial			$	11,826,201					$	4,224,420					$	2,267,646					$	23,498					$	18,341,765
Commercial real estate
Fixed rate			$	946,605					$	2,696,894					$	343,419					$	68,813					$	4,055,731
Variable rate			10,898,800						6,017						63						—						10,904,880
Total commercial real estate			$	11,845,405					$	2,702,911					$	343,482					$	68,813					$	14,960,611
Home equity
Fixed rate			$	8,731					$	1,266					$	23					$	4					$	10,024
Variable rate			497,807						—						—						—						497,807
Total home equity			$	506,538					$	1,266					$	23					$	4					$	507,831
Residential real estate
Fixed rate			$	17,516					$	6,349					$	61,821					$	1,047,240					$	1,132,926
Variable rate			153,365						870,687						2,539,037						—						3,563,089
Total residential real estate			$	170,881					$	877,036					$	2,600,858					$	1,047,240					$	4,696,015
Premium finance receivables - property & casualty
Fixed rate			$	8,466,546					$	157,776					$	—					$	—					$	8,624,322
Variable rate			—						—						—						—						—
Total premium finance receivables - property & casualty			$	8,466,546					$	157,776					$	—					$	—					$	8,624,322
Premium finance receivables - life insurance
Fixed rate			$	13,006					$	35,884					$	—					$	—					$	48,890
Variable rate			9,489,973						—						—						—						9,489,973
Total premium finance receivables - life insurance			$	9,502,979					$	35,884					$	—					$	—					$	9,538,863
Consumer and other
Fixed rate			$	32,133					$	7,772					$	968					$	836					$	41,709
Variable rate			93,455						—						—						—						93,455
Total consumer and other			$	125,588					$	7,772					$	968					$	836					$	135,164
Total per category
Fixed rate			$	10,152,958					$	7,126,563					$	2,673,877					$	1,140,391					$	21,093,789
Variable rate			32,291,180						880,502						2,539,100						—						35,710,782
Total loans, net of unearned income			$	42,444,138					$	8,007,065					$	5,212,977					$	1,140,391					$	56,804,571
Less: Existing cash flow hedging derivatives (1)			(6,650,000)
Total loans repricing or maturing in one year or less, adjusted for cash flow hedging activity			$	35,794,138
Variable Rate Loan Pricing by Index:
SOFR tenors (2)																											$	23,556,092
12- month CMT (3)																											8,442,458
Prime																											2,980,955
Fed Funds																											502,961
Other U.S. Treasury tenors																											125,663
Other																											102,653
Total variable rate																											$	35,710,782

(1)Excludes cash flow hedges with future effective starting dates and those that have matured as of September 30, 2026. The $6.65 billion of cash flow hedging derivatives includes receive fixed swaps, collars and floors of which $5.70 billion were impacting the cash flows of loans indexed to one-month SOFR as of September 30, 2026.

(2)SOFR - Secured Overnight Financing Rate.

(3)CMT - Constant Maturity Treasury Rate.

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CREDIT QUALITY

Commercial and Commercial Real Estate Loan Portfolios

Our commercial and commercial real estate loan portfolios are comprised primarily of lines of credit for working capital purposes and commercial real estate loans. The table below sets forth information regarding the types and amounts of our loans within these portfolios as of September 30, 2026 and 2025:

			As of September 30, 2026																		As of September 30, 2025
																											Allowance																		Allowance
									% of																		For Credit												% of						For Credit
									Total																		Losses												Total						Losses
(Dollars in thousands)			Balance						Balance																		Allocation						Balance						Balance						Allocation
Commercial			$	18,341,765					55.1		%																$	240,134					$	16,544,342					54.8		%				$	189,476
Commercial Real Estate:
Construction and development			$	2,678,889					8.0		%																$	66,450					$	2,658,153					8.8		%				$	78,765
Non-construction			12,281,722						36.9																		142,623						10,961,054						36.4						151,712
Total commercial real estate			$	14,960,611					44.9		%																$	209,073					$	13,619,207					45.2		%				$	230,477
Total commercial and commercial real estate			$	33,302,376					100.0		%																$	449,207					$	30,163,549					100.0		%				$	419,953
Commercial real estate - primary collateral location by state:
Illinois			$	7,503,051					50.2		%																						$	7,096,808					52.1		%
Michigan			961,459						6.4																								875,395						6.4
Wisconsin			880,486						5.9																								893,812						6.6
Total primary markets			$	9,344,996					62.5		%																						$	8,866,015					65.1		%
Florida			$	613,296					4.1		%																						$	486,728					3.6		%
Indiana			537,034						3.6																								464,808						3.4
Texas			391,489						2.6																								319,292						2.3
Colorado			390,235						2.6																								288,412						2.1
Georgia			318,771						2.1																								333,260						2.5
Ohio			291,107						2.0																								231,578						1.7
California			268,622						1.8																								291,088						2.1
Arizona			261,496						1.8																								255,994						1.9
North Carolina			259,115						1.7																								227,462						1.7
South Carolina			228,574						1.5																								154,142						1.1
Other			2,055,876						13.7																								1,700,428						12.5
Total commercial real estate			$	14,960,611					100.0		%																						$	13,619,207					100.0		%

We make commercial loans for many purposes, including working capital lines, which are generally renewable annually and supported by business assets, personal guarantees and additional collateral. Such loans may vary in size based on customer need. As a result of growth and impacts related to uncertainty regarding future economic performance, the Company’s commercial loan portfolio allowance for credit losses increased to $240.1 million as of September 30, 2026 compared to $189.5 million as of September 30, 2025.

Our commercial real estate loans are generally secured by a first mortgage lien and assignment of rents on the property. Since most of our bank branches are located in the Chicago metropolitan area, southern Wisconsin and west Michigan, 62.5% of our commercial real estate loan portfolio is located in this region as of September 30, 2026. We have been able to effectively manage our total non-performing commercial real estate loans, aided by our credit management process. As of September 30, 2026, our allowance for credit losses related to this portfolio was $209.1 million compared to $230.5 million as of September 30, 2025. The decrease in the allowance for credit losses is primarily a result of an improved forecast related to CREPI, partially offset by growth in the portfolio. The table below sets forth the commercial real estate loans by property type and owner vs. non-owner occupied.

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(In thousands)						September 30, 2026																		September 30, 2025
Commercial Real Estate:						Owner Occupied			Non-Owner Occupied			Total			% of Total			Average Size of Loan						Owner Occupied			Non-Owner Occupied			Total			% of Total			Average Size of Loan
Residential construction						$	720		$	50,734		$	51,454		1		%	$	459					$	3,201		$	57,722		$	60,923		1		%	$	655
Commercial construction						221,589			2,078,760			2,300,349			15			5,310						198,522			2,075,023			2,273,545			17			5,766
Land						5,248			321,838			327,086			2			1,869						6,312			317,373			323,685			2			1,850
Office						279,967			1,379,563			1,659,530			11			1,580						277,351			1,300,857			1,578,208			12			1,468
Industrial						1,060,191			2,530,371			3,590,562			24			2,376						955,660			1,956,887			2,912,547			21			1,938
Retail						361,023			1,149,510			1,510,533			10			1,338						349,754			1,129,107			1,478,861			11			1,275
Multi-family						99,821			3,416,229			3,516,050			24			1,553						94,211			3,212,386			3,306,597			24			1,447
Mixed use and other						608,791			1,396,256			2,005,047			13			1,464						595,637			1,089,204			1,684,841			12			1,219
Total commercial real estate						$	2,637,350		$	12,323,261		$	14,960,611		100		%	$	1,859					$	2,480,648		$	11,138,559		$	13,619,207		100		%	$	1,688

The Company also participates in mortgage warehouse lending, which is included above within commercial, industrial and other, by providing interim funding to unaffiliated mortgage bankers to finance residential mortgages originated by such bankers for sale into the secondary market. The Company’s loans to the mortgage bankers are secured by the business assets of the mortgage companies as well as the specific mortgage loans funded by the Company, after they have been pre-approved for purchase by third party end lenders. The Company may also provide interim financing for packages of mortgage loans on a bulk basis in circumstances where the mortgage bankers desire to competitively bid on a number of mortgages for sale as a package in the secondary market.

Past Due Loans and Non-Performing Assets

Our ability to manage credit risk depends in large part on our ability to properly identify and manage problem loans. To do so, the Company operates a credit risk rating system under which our credit management personnel assigns a credit risk rating to each loan at the time of origination and review loans on a regular basis to determine each loan’s credit risk rating on a scale of 1 through 10 with higher scores indicating higher risk. Description of the Company’s credit risk rating structure used is included in Item 7 - Management’s Discussion and Analysis of Financial Condition and Results of Operations of the 2025 Form 10-K.

If based on current information and events, it is probable that the Company will be unable to collect all amounts due to it according to the contractual terms of the loan agreement, a loan is individually assessed for measuring the allowance for credit losses and, if necessary, a reserve is established. In determining the appropriate reserve for collateral-dependent loans, the Company considers the results of appraisals for the associated collateral.

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Non-performing Assets (1)

The following table sets forth the Company's non-performing assets performing under the contractual terms of the loan agreement as of the dates shown.

(Dollars in thousands)			September 30, 2026						June 30, 2026									September 30, 2025
Loans past due greater than 90 days and still accruing:
Commercial			$	—					$	—								$	—
Commercial real estate			—						—									—
Home equity			—						—									—
Residential real estate			—						—									—
Premium finance receivables—property and casualty			17,093						16,003									13,006
Premium finance receivables—life insurance			10,380						—									—
Consumer and other			13						145									60
Total loans past due greater than 90 days and still accruing			27,486						16,148									13,066
Non-accrual loans:
Commercial			85,670						90,642									66,577
Commercial real estate			13,013						17,220									28,202
Home equity			1,149						1,177									1,295
Residential real estate			26,218						25,910									28,942
Premium finance receivables—property and casualty			23,341						28,061									24,512
Premium finance receivables—life insurance			—						—									—
Consumer and other			27						113									38
Total non-accrual loans			149,418						163,123									149,566
Total non-performing loans:
Commercial			85,670						90,642									66,577
Commercial real estate			13,013						17,220									28,202
Home equity			1,149						1,177									1,295
Residential real estate			26,218						25,910									28,942
Premium finance receivables—property and casualty			40,434						44,064									37,518
Premium finance receivables—life insurance			10,380						—									—
Consumer and other			40						258									98
Total non-performing loans			$	176,904					$	179,271								$	162,632
Other real estate owned			16,404						15,940									24,832
Total non-performing assets			$	193,308					$	195,211								$	187,464
Total non-performing loans by category as a percent of its own respective category’s period-end balance:
Commercial			0.47		%				0.50		%							0.40		%
Commercial real estate			0.09						0.12									0.21
Home equity			0.23						0.24									0.27
Residential real estate			0.56						0.57									0.70
Premium finance receivables—property and casualty			0.47						0.51									0.45
Premium finance receivables—life insurance			0.11						—									—
Consumer and other			0.03						0.18									0.07
Total non-performing loans			0.31		%				0.32		%							0.31		%
Total non-performing assets, as a percentage of total assets			0.25		%				0.26		%							0.27		%
Total non-accrual loans as a percentage of total loans			0.26		%				0.29		%							0.29		%
Allowance for credit losses as a percentage of non-accrual loans			325.15		%				294.85		%							303.67		%

(1)Excludes early buy-out loans guaranteed by U.S. government agencies. Early buy-out loans are insured or guaranteed by the FHA or the U.S. Department of Veterans Affairs, subject to indemnifications and insurance limits for certain loans.

At this time, management believes reserves are appropriate to absorb losses that are expected upon the ultimate resolution of these credits. Significant increases may occur in subsequent periods due to ongoing macroeconomic uncertainty and related impacts on borrowers. Management will continue to actively review and monitor its loan portfolios, in an effort to identify problem credits in a timely manner.

Loan Portfolio Aging

As of September 30, 2026, excluding early buy-out loans guaranteed by U.S. government agencies, $65.9 million, or 0.1% of all loans, were 60 to 89 days (or two payments) past due and $152.7 million, or 0.3% of all loans, were 30 to 59 days (or one payment) past due. As of June 30, 2026, excluding early buy-out loans guaranteed by U.S. government agencies, $55.0 million, or 0.1% of all loans, were 60 to 89 days (or two payments) past due and $135.3 million, or 0.2% of all loans, were 30 to 59 days

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(or one payment) past due. Many of the commercial and commercial real estate loans shown as 60 to 89 days and 30 to 59 days past due are included on the Company’s internal problem loan reporting system. Loans on this system are closely monitored by management on a monthly basis. The Company's home equity and residential loan portfolios continue to exhibit low delinquency ratios. Home equity loans at September 30, 2026 that were current with regard to the contractual terms of the loan agreement represent 99.3% of the total home equity portfolio. Residential real estate loans, excluding early buy-out loans guaranteed by U.S. government agencies, at September 30, 2026 that were current with regards to the contractual terms of the loan agreements comprise 99.3% of total residential real estate loans outstanding. For more information regarding delinquent loans as of September 30, 2026, see Note (6) “Allowance for Credit Losses” in Item 1 of this report.

Non-performing Loans Rollforward, excluding early buy-out loans guaranteed by U.S. government agencies

The table below presents a summary of non-performing loans for the periods presented:     

			Three Months Ended												Nine Months Ended
			September 30,						September 30,						September 30,						September 30,
(In thousands)			2026						2025						2026						2025
Balance at beginning of period			$	179,271					$	188,838					$	185,808					$	170,823
Additions from becoming non-performing in the respective period			29,694						34,805						85,733						111,177
Return to performing status			(11,423)						(3,399)						(16,757)						(11,502)
Payments received			(7,568)						(28,052)						(40,851)						(49,619)
Transfer to OREO or other assets			(1,582)						(348)						(2,450)						(2,595)
Charge-offs			(18,106)						(21,526)						(36,896)						(41,860)
Net change for premium finance receivables			6,618						(7,686)						2,317						(13,792)
Balance at end of period			$	176,904					$	162,632					$	176,904					$	162,632

Allowance for Credit Losses

The allowance for credit losses, specifically the allowance for loans losses and the allowance for unfunded commitment losses, represents management’s estimate of lifetime expected credit losses in the loan portfolio. The allowance for credit losses is determined quarterly using a methodology that incorporates important risk characteristics of each loan. A description of how the Company determines the allowance for credit losses is included in Item 7 - Management’s Discussion and Analysis of Financial Condition and Results of Operations of the 2025 Form 10-K.

Management determined that the allowance for credit losses was appropriate at September 30, 2026, and that the loan portfolio is well diversified and well secured, without undue concentration in any specific risk area. While this process involves a high degree of management judgment, the allowance for credit losses is based on a comprehensive, well documented, and consistently applied analysis of the Company’s loan portfolio. This analysis takes into consideration all available information existing as of the financial statement date, including environmental factors such as economic, industry, geographical and political factors, when considered applicable. The relative level of allowance for credit losses is reviewed and compared to industry peers. This review encompasses levels of total non-performing loans, portfolio mix, portfolio concentrations and overall levels of net charge-off. Historical trending of both the Company’s results and the industry peers is also reviewed to analyze comparative significance.

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Allowance for Credit Losses

The following table summarizes the activity in our allowance for credit losses, specifically related to loans and unfunded lending-related commitments, during the periods indicated.

 

			Three Months Ended												Nine Months Ended
(Dollars in thousands)			September 30, 2026						September 30, 2025						September 30, 2026						September 30, 2025
Allowance for credit losses at beginning of period			$	480,969					$	457,063					$	460,205					$	436,603
Provision for credit losses			25,886						21,771						78,654						68,027
Other adjustments			(18)						(88)						(158)						96
Charge-offs:
Commercial			19,075						21,597						38,340						37,467
Commercial real estate			414						144						8,381						6,309
Home equity			—						27						—						138
Residential real estate			107						26						620						26
Premium finance receivables - property & casualty			7,361						6,860						20,195						20,320
Premium finance receivables - life insurance			—						18						—						30
Consumer and other			217						174						569						500
Total charge-offs			27,174						28,846						68,105						64,790
Recoveries:
Commercial			1,577						1,449						4,706						4,124
Commercial real estate			2,103						241						2,114						263
Home equity			12						104						331						350
Residential real estate			24						1						26						139
Premium finance receivables - property & casualty			2,435						2,459						7,948						9,281
Premium finance receivables - life insurance			—						—						—						—
Consumer and other			26						37						119						98
Total recoveries			6,177						4,291						15,244						14,255
Net charge-offs			(20,997)						(24,555)						(52,861)						(50,535)
Allowance for credit losses at period end			$	485,840					$	454,191					$	485,840					$	454,191
Annualized net charge-offs (recoveries) by category as a percentage of its own respective category’s average:
Commercial			0.39		%				0.49		%				0.26		%				0.28		%
Commercial real estate			(0.05)						(0.00)						0.06						0.06
Home equity			(0.01)						(0.06)						(0.09)						(0.06)
Residential real estate			0.01						0.00						0.02						(0.00)
Premium finance receivables - property & casualty			0.22						0.20						0.20						0.19
Premium finance receivables - life insurance			—						0.00						—						0.00
Consumer and other			0.41						0.40						0.39						0.43
Total loans, net of unearned income			0.15		%				0.19		%				0.13		%				0.14		%
Loans at period-end			$	56,804,571					$	52,063,482
Allowance for loan losses as a percentage of loans at period end			0.71		%				0.74		%
Allowance for loan and unfunded loan-related commitment losses as a percentage of loans at period end			0.86						0.87

See Note (6) “Allowance for Credit Losses” of the Consolidated Financial Statements presented under Item 1 of this report for further discussion of activity within the allowance for credit losses during the period and the relationship with respective loan balances for each loan category and the total loan portfolio.

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Other Real Estate Owned

In certain circumstances, the Company is required to take action against the real estate collateral of specific loans. The Company uses foreclosure only as a last resort for dealing with borrowers experiencing financial hardships. The Company employs extensive contact and restructuring procedures to attempt to find other solutions for our borrowers. The tables below present a summary of other real estate owned and show the activity for the respective periods and the balance for each property type:

			Three Months Ended												Nine Months Ended
(In thousands)			September 30, 2026									September 30, 2025						September 30, 2026						September 30, 2025
Balance at beginning of period			$	15,940								$	23,615					$	20,839					$	23,116
Disposal/resolved			(127)									—						(6,386)						—
Transfers in at fair value, less costs to sell			591									1,217						1,951						2,532
Fair value adjustments			—									—						—						(816)
Balance at end of period			$	16,404								$	24,832					$	16,404					$	24,832

			Period End
(In thousands)			September 30, 2026						June 30, 2026						September 30, 2025
Residential real estate			$	—					$	—					$	—
Commercial real estate			16,404						15,940						24,832
Total			$	16,404					$	15,940					$	24,832

Deposits

Total deposits at September 30, 2026 were $62.4 billion, an increase of $5.7 billion, or 10%, compared to total deposits at September 30, 2025. See Note (9) “Deposits” to the Consolidated Financial Statements in Item 1 of this report for a summary of period end deposit balances.

The following table sets forth, by category, the maturity of time certificates of deposit as of September 30, 2026:

Time Certificates of Deposit Maturity/Re-pricing Analysis As of September 30, 2026 (Dollars in thousands)																														Total Time Certificates of Deposits						Weighted-Average Rate of Maturing Time Certificates of Deposit
1-3 months																														$	3,527,388					3.47		%
4-6 months																														2,538,063						3.35
7-9 months																														1,526,406						3.33
10-12 months																														2,547,872						3.81
13-18 months																														956,359						3.59
19-24 months																														79,951						2.90
24+ months																														69,008						2.51
Total																														$	11,245,047					3.50		%

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The following table sets forth, by category, the composition of average deposit balances and the relative percentage of total average deposits for the periods presented:

			Three Months Ended
			September 30, 2026												June 30, 2026												September 30, 2025
(Dollars in thousands)			Balance						Percent						Balance						Percent						Balance						Percent
Non-interest-bearing			$	11,417,869					19		%				$	11,273,344					19		%				$	10,791,709					19		%
NOW and interest-bearing demand deposits			7,283,497						12						6,453,420						11						6,687,292						12
Wealth management deposits			1,566,292						3						1,485,347						3						1,604,142						3
Money market			22,860,299						37						22,000,942						37						19,431,021						35
Savings			6,570,130						11						6,707,916						11						6,723,325						12
Time certificates of deposit			11,256,456						18						10,938,312						19						10,319,719						19
Total average deposits			$	60,954,543					100		%				$	58,859,281					100		%				$	55,557,208					100		%

Total average deposits for the third quarter of 2026 were $61.0 billion, an increase of $5.4 billion, or 10%, from the third quarter of 2025. Total deposits increased in the third quarter of 2026 as compared to the third quarter of 2025 primarily as a result of the Company’s increased marketing efforts to retain and attract deposits to support continued loan growth.

Wealth management deposits are funds from the brokerage customers of Wintrust Investments, CDEC and trust and asset management customers of the Company which have been placed into deposit accounts of the banks (“wealth management deposits” in the table above). Wealth management deposits consist primarily of money market accounts. Consistent with reasonable interest rate risk parameters, these funds have generally been invested in loan production of the banks as well as other investments suitable for banks.

Brokered Deposits

While the Company obtains a portion of its total deposits through brokered deposits, the Company does so primarily as an asset-liability management tool to assist in the management of interest rate risk, and the Company does not consider brokered deposits to be a vital component of its current liquidity resources. Historically, brokered deposits have represented a small component of the Company’s total deposits outstanding, as set forth in the table below:

			September 30,												December 31,
(Dollars in thousands)			2026						2025						2025						2024						2023
Total deposits			$	62,435,216					$	56,711,381					$	57,717,191					$	52,512,349					$	45,397,170
Brokered deposits (1)			4,589,882						3,914,074						4,123,822						3,598,102						4,216,718
Brokered deposits as a percentage of total deposits (1)			7.4		%				6.9		%				7.1		%				6.9		%				9.3		%

(1)Brokered deposits include certificates of deposit obtained through deposit brokers, deposits received through the Certificate of Deposit Account Registry Program, as well as wealth management deposits of brokerage customers from unaffiliated companies which have been placed into deposit accounts of the banks.

Other Funding Sources

Although deposits are the Company’s primary source of funding its interest-earning assets, the Company’s ability to manage the types and terms of deposits is somewhat limited by customer preferences and market competition. As a result, in addition to deposits and the issuance of equity securities and the retention of earnings, the Company uses several other funding sources to support its growth. These sources include FHLB advances, notes payable, short-term borrowings, secured borrowings, subordinated debt and junior subordinated debentures. The Company evaluates the terms and unique characteristics of each source, as well as its asset-liability management position, in determining the use of such funding sources.

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The following table sets forth, by category, the composition of the average balances of other funding sources for the quarterly periods presented:

			Three Months Ended
			September 30,						June 30,						September 30,
(In thousands)			2026						2026						2025
FHLB advances			$	3,450,683					$	3,450,773					$	3,151,310
Other borrowings:
Notes payable			—						—						128,425
Short-term borrowings			24						24						24
Secured borrowings			393,007						358,487						430,265
Other			—						—						56,178
Total other borrowings			$	393,031					$	358,511					$	614,892
Subordinated notes			298,844						298,757						298,481
Junior subordinated debentures			253,566						253,566						253,566
Total other funding sources			$	4,396,124					$	4,361,607					$	4,318,249

See Note (10) “FHLB Advances, Other Borrowings and Subordinated Notes” and Note (11) “Junior Subordinated Debentures” of the Consolidated Financial Statements presented under Item 1 of this report for details of period end balances and other information for these various funding sources. The Company hereby incorporates by reference Note (10) and Note (11) of the Consolidated Financial Statements presented under Item 1 of this report in its entirety.

Shareholders’ Equity

The following tables reflect various consolidated measures of capital as of the dates presented and the capital guidelines established for a bank holding company:

			September 30, 2026						June 30, 2026						September 30, 2025
Tier 1 Leverage Ratio			9.8		%				9.8		%				9.5		%
Risk-based capital ratios:
Tier 1 Capital Ratio			11.2						11.1						10.9
Common Equity Tier 1 Capital Ratio			10.5						10.4						10.2
Total Capital Ratio			12.5						12.4						12.4
Other ratio:
Total average equity-to-total average assets (1)			10.2						10.4						10.2

(1)Based on quarterly average balances.

			Minimum Capital Requirements						Minimum Ratio + Capital Conservation Buffer (1)						Minimum Well Capitalized (2)
Tier 1 Leverage Ratio			4.0		%				N/A						N/A
Risk-based capital ratios:
Tier 1 Capital Ratio			6.0						8.5						6.0
Common Equity Tier 1 Capital Ratio			4.5						7.0						N/A
Total Capital Ratio			8.0						10.5						10.0

(1)Reflects the Capital Conservation Buffer of 2.5%.

(2)Reflects the well-capitalized standard applicable to the Company for purposes of the Federal Reserve’s Regulation Y. The Federal Reserve has not yet revised the well-capitalized standard for bank holding companies to reflect the higher capital requirements imposed under the U.S. Basel III Rule or to add Common Equity Tier 1 Capital Ratio and Tier 1 Leverage Ratio requirements to this standard. As a result, the Common Equity Tier 1 Capital Ratio and Tier 1 Leverage Ratio are denoted as “N/A” in this column. If the Federal Reserve were to apply the same or a very similar well-capitalized standard to bank holding companies as the standard applicable to our subsidiary banks, we believe the Company’s capital ratios as of September 30, 2026 would exceed such revised well-capitalized standard.

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The Company’s principal sources of funds at the holding company level are dividends from its subsidiaries, borrowings under its loan agreement with unaffiliated banks and proceeds from the issuances of subordinated debt and additional equity. Refer to Notes (10) and (11) of the Consolidated Financial Statements in Item 1 for further information on these various funding sources. See Note (23) “Shareholders’ Equity” of the Consolidated Financial Statements presented under Item 7 of the 2025 Form 10-K for details on the Company’s issuance of Series F Preferred Stock and associated Depositary Shares in May 2025 and redemption of the Company’s Series D Preferred Stock and Series E Preferred Stock in July 2025.

The Board of Directors approves dividends from time to time, however, the ability to declare a dividend is limited by the Company’s financial condition, the terms of the Company’s Preferred Stock, the terms of the Company’s Trust Preferred Securities offerings and under certain financial covenants in the Company’s credit facilities. In January, April and July of 2026, the Company declared a quarterly cash dividend of $0.55 per common share. In January, April, July and October of 2025, the Company declared a quarterly cash dividend of $0.50 per common share.

At the October 2026 meeting of the Board of Directors, a quarterly cash dividend of $0.55 per common share ($2.20 on an annualized basis) was declared. It is payable on November 19, 2026 to shareholders of record as of November 5, 2026.

The Company continues to leverage its capital management framework to assess and monitor risk when making capital decisions. Management is committed to maintaining the Company’s capital levels above the “Well Capitalized” levels established by the FRB for bank holding companies.

LIQUIDITY

The Company manages the liquidity position of its banking operations to ensure that sufficient funds are available to meet customers’ needs for loans and deposit withdrawals. The management process includes the utilization of stress testing processes and other aspects of the Company's liquidity management framework to assess and monitor risk, and inform decision making. The liquidity to meet the demands of customers is provided by maturing assets, liquid assets that can be converted to cash and the ability to attract funds from external sources. Liquid assets refer to money market assets such as Federal funds sold and interest-bearing deposits with banks, as well as available-for-sale debt securities and equity securities with readily determinable fair values which are not pledged to secure public funds. In addition, trade date receivables represent certain sales or calls of available-for-sale securities that await cash settlement, typically in the month following the trade date.

We maintain our liquid assets to ensure that we would have the balance sheet strength to serve our clients. As a result, the Company believes that it has sufficient funds and access to funds to effectively meet its working capital and other needs. The Company will continue to prudently evaluate liquidity sources, including the management of availability with the FHLB and FRB and utilization of the revolving credit facility with unaffiliated banks. Please refer to Management’s Discussion and Analysis of Financial Condition and Results of Operation -Interest-Earning Assets, -Deposits, -Other Funding Sources and -Shareholders’ Equity sections of this report for additional information regarding the Company’s liquidity position.

INFLATION

A banking organization’s assets and liabilities are primarily monetary. Changes in the rate of inflation typically do not have as great an impact on the financial condition of a bank as do changes in interest rates. Moreover, interest rates do not necessarily change at the same percentage as inflation. Accordingly, changes in inflation are not expected to have as material an impact on the Company’s business as entities operating in other industries. An analysis of the Company’s asset and liability structure provides the best indication of how the organization is positioned to respond to changing interest rates. See “Quantitative and Qualitative Disclosures About Market Risk” section of this report for additional information.

FORWARD-LOOKING STATEMENTS

This document contains forward-looking statements within the meaning of federal securities laws. Forward-looking information can be identified through the use of words such as “intend,” “plan,” “project,” “expect,” “anticipate,” “believe,” “estimate,” “contemplate,” “possible,” “will,” “may,” “should,” “would” and “could.” Forward-looking statements and information are not historical facts, are premised on many factors and assumptions, and represent only management’s expectations, estimates and projections regarding future events. Similarly, these statements are not guarantees of future performance and involve certain risks and uncertainties that are difficult to predict, and which may include, but are not limited to, those listed below and the Risk Factors discussed under Item 1A of the Company’s 2025 Annual Report on Form 10-K and in any of the Company’s subsequent Securities and Exchange Commission filings. The Company intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995, and is including this statement for purposes of invoking these safe harbor provisions. Such forward-looking statements may be

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deemed to include, among other things, statements relating to the Company’s future financial performance, the performance of its loan portfolio, the expected amount of future credit reserves and charge-offs, delinquency trends, growth plans, regulatory developments, securities that the Company may offer from time to time, and management’s long-term performance goals, as well as statements relating to the anticipated effects on the Company’s financial condition and results of operations from expected developments or events, the Company’s business and growth strategies, including future acquisitions of banks, specialty finance or wealth management businesses, internal growth and plans to form additional de novo banks or branch offices. Actual results could differ materially from those addressed in the forward-looking statements as a result of numerous factors and uncertainties, including the following:

•economic conditions and events that affect the economy, housing prices, the job market and other factors that may adversely affect the Company’s liquidity and the performance of its loan portfolios, including an actual or threatened U.S. government shutdown, debt default or rating downgrade, particularly in the markets in which it operates;

•negative effects suffered by us or our customers resulting from changes in U.S. or international trade policies or armed hostilities;

•the extent of defaults and losses on the Company’s loan portfolio, which may require further increases in its allowance for credit losses;

•estimates of fair value of certain of the Company’s assets and liabilities, which could change in value significantly from period to period;

•the financial success and economic viability of the borrowers of our commercial loans;

•commercial real estate market conditions in the Chicago metropolitan area, southern Wisconsin and west Michigan;

•the extent of commercial and consumer delinquencies and declines in real estate values, which may require further increases in the Company’s allowance for credit losses;

•inaccurate assumptions in our analytical and forecasting models used to manage our loan portfolio;

•changes in the level and volatility of interest rates, the capital markets and other market indices that may affect, among other things, the Company’s liquidity and the value of its assets and liabilities;

•the interest rate environment, including a prolonged period of low interest rates or rising interest rates, either broadly or for some types of instruments, which may affect the Company’s net interest income and net interest margin, and which could materially adversely affect the Company’s profitability;

•competitive pressures in the financial services business which may affect the pricing of the Company’s loan and deposit products as well as its services (including wealth management services), which may result in loss of market share and reduced income from deposits, loans, advisory fees and income from other products;

•failure to identify and complete favorable acquisitions in the future or unexpected losses, difficulties or developments related to the Company’s recent or future acquisitions;

•unexpected difficulties and losses related to FDIC-assisted acquisitions;

•harm to the Company’s reputation;

•any negative perception of the Company’s financial strength;

•ability of the Company to raise additional capital on acceptable terms when needed;

•disruption in capital markets, which may lower fair values for the Company’s investment portfolio;

•ability of the Company to use technology to provide products and services that will satisfy customer demands and create efficiencies in operations and to manage risks associated therewith;

•failure or breaches of our security systems or infrastructure, or those of third parties;

•security breaches, including denial of service attacks, hacking, social engineering attacks, malware intrusion and similar events or data corruption attempts and identity theft;

•adverse effects on our information technology systems, or those of third parties, resulting from failures, human error or cyberattacks (including ransomware);

•adverse effects of failures by our vendors to provide agreed upon services in the manner and at the cost agreed, particularly our information technology vendors;

•increased costs as a result of protecting our customers from the impact of stolen debit card information;

•accuracy and completeness of information the Company receives about customers and counterparties to make credit decisions;

•ability of the Company to attract and retain senior management experienced in the banking and financial services industries;

•environmental liability risk associated with lending activities;

•the impact of any claims or legal actions to which the Company is subject, including any effect on our reputation;

•losses incurred in connection with repurchases and indemnification payments related to mortgages and increases in reserves associated therewith;

•the loss of customers as a result of technological changes allowing consumers to complete their financial transactions without the use of a bank;

•the soundness of other financial institutions and the impact of recent failures of financial institutions, including broader

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financial institution liquidity risk and concerns;

•the expenses and delayed returns inherent in opening new branches and de novo banks;

•liabilities, potential customer loss or reputational harm related to closings of existing branches;

•examinations and challenges by tax authorities, and any unanticipated impact of tax legislation;

•changes in accounting standards, rules and interpretations, and the impact on the Company’s financial statements;

•the ability of the Company to receive dividends from its subsidiaries;

•a decrease in the Company’s capital ratios, including as a result of declines in the value of its loan portfolios, or otherwise;

•legislative or regulatory changes, particularly changes in regulation of financial services companies and/or the products and services offered by financial services companies;

•changes in laws, regulations, rules, standards and contractual obligations regarding data privacy and cybersecurity;

•a lowering of our credit rating;

•changes in U.S. monetary policy and changes to the Federal Reserve’s balance sheet, including changes in response to persistent inflation or otherwise;

•regulatory restrictions upon our ability to market our products to consumers and limitations on our ability to profitably operate our mortgage business;

•increased costs of compliance, heightened regulatory capital requirements and other risks associated with changes in regulation and the regulatory environment;

•the impact of heightened capital requirements;

•increases in the Company’s FDIC insurance premiums, or the collection of special assessments by the FDIC;

•delinquencies or fraud with respect to the Company’s premium finance business;

•credit downgrades among commercial and life insurance providers that could negatively affect the value of collateral securing the Company’s premium finance loans;

•the Company’s ability to comply with covenants under its credit facility;

•fluctuations in the stock market, which may have an adverse impact on the Company’s wealth management business and brokerage operation; and

•widespread outages of operational, communication, or other systems, whether internal or provided by third parties, natural or other disasters (including acts of terrorism, armed hostilities and pandemics), and the effects of climate change.

Therefore, there can be no assurances that future actual results will correspond to any forward-looking statement. The reader is cautioned not to place undue reliance on any forward-looking statement made by the Company. Any such statement speaks only as of the date the statement was made or as of such date that may be referenced within the statement. The Company undertakes no obligation to update any forward-looking statement to reflect the impact of circumstances or events after the date of this report. Persons are advised, however, to consult further disclosures management makes on related subjects in its reports filed with the Securities and Exchange Commission and in its press releases.

ITEM 3

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

As an ongoing part of its financial strategy, the Company attempts to manage the impact of fluctuations in market interest rates on net interest income. This effort entails providing a reasonable balance between interest rate risk, credit risk, liquidity risk and maintenance of yield. Asset-liability management policies are established and monitored by management in conjunction with the boards of directors of the banks, subject to general oversight by the Risk Management Committee of the Company’s Board. The policies establish guidelines for acceptable limits on the sensitivity of the market value of assets and liabilities to changes in interest rates.

Interest rate risk arises when the maturity or re-pricing periods and interest rate indices of the interest-earning assets, interest-bearing liabilities, and derivative financial instruments are different. It is the risk that changes in the level of market interest rates will result in disproportionate changes in the value of, and the net earnings generated from, the Company’s interest-earning assets, interest-bearing liabilities and derivative financial instruments. The Company continuously monitors not only the organization’s current net interest margin, but also the historical trends of these margins. In addition, management attempts to identify potential adverse changes in net interest income in future years as a result of interest rate fluctuations by performing simulation analysis of various interest rate environments. If a potential adverse change in net interest margin and/or net income is identified, management is prepared to take appropriate action with its asset-liability structure to mitigate these potentially adverse situations. Please refer to Item 2 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” for further discussion of the net interest margin.

Since the Company’s primary source of interest-bearing liabilities is from customer deposits, the Company’s ability to manage the types and terms of such deposits is somewhat limited by customer preferences and local competition in the market areas in which the banks operate. The rates, terms and interest rate indices of the Company’s interest-earning assets result primarily

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from the Company’s strategy of investing in loans and securities that permit the Company to limit its exposure to interest rate risk, together with credit risk, while at the same time achieving an acceptable interest rate spread.

The Company’s exposure to interest rate risk is reviewed on a regular basis by management and the Risk Management Committees of the boards of directors of the banks and the Company. The objective of the review is to measure the effect on net income and to adjust balance sheet and derivative financial instruments to minimize the inherent risk while at the same time maximize net interest income.

The following interest rate scenarios display the percentage change in net interest income over a one-year time horizon assuming increases and decreases of 100 and 200 basis points as compared to projected net interest income in a scenario with no assumed rate changes. The Static Shock Scenario results incorporate actual cash flows and repricing characteristics for balance sheet instruments following an instantaneous, parallel change in market rates based upon a static (i.e. no growth or constant) balance sheet. Conversely, the Ramp Scenario results incorporate management’s projections of future volume and pricing of each of the product lines following a gradual, parallel change in market rates over twelve months. Actual results may differ from these simulated results due to timing, magnitude, and frequency of interest rate changes as well as changes in market conditions and management strategies. The interest rate sensitivity for both the Static Shock and Ramp Scenarios at September 30, 2026, June 30, 2026 and September 30, 2025 is as follows:

Static Shock Scenarios			+200 Basis Points						+100 Basis Points						-100 Basis Points						-200 Basis Points
September 30, 2026			(2.9)		%				(1.6)		%				0.3		%				0.1		%
June 30, 2026			(2.4)						(1.1)						(0.1)						(0.1)		%
September 30, 2025			(2.3)						(0.8)						0.0						(0.4)		%

Ramp Scenarios			+200 Basis Points						+100 Basis Points						-100 Basis Points						-200 Basis Points
September 30, 2026			(2.2)		%				(1.3)		%				0.5		%				1.2		%
June 30, 2026			(0.2)						(0.1)						(0.2)						(0.4)		%
September 30, 2025			(0.2)						(0.1)						0.1						(0.1)		%

One method utilized by financial institutions, including the Company, to manage interest rate risk is to enter into derivative financial instruments. Derivative financial instruments include interest rate swaps, interest rate caps, floors and collars, futures, forwards, option contracts and other financial instruments with similar characteristics. Additionally, the Company enters into commitments to fund certain mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of mortgage loans to third party investors. See Note (13) “Derivative Financial Instruments” of the Consolidated Financial Statements in Item 1 of this report for further information on the Company’s derivative financial instruments.

As shown above, the magnitude of potential changes in net interest income in various interest rate scenarios has continued to remain relatively neutral. Management has taken action to reposition its sensitivity to interest rates to stabilize net interest margin following the rise in short term interest rates in 2022 and 2023. To this end, management has executed various derivative instruments including collars, floors, and receive-fixed swaps to hedge variable-rate loan exposures. The Company will continue to monitor current and projected interest rates and may execute additional derivatives to mitigate potential fluctuations in the net interest margin in future periods.

Periodically, the Company enters into certain covered call option transactions related to certain securities held by the Company. The Company uses these option transactions (rather than entering into other derivative interest rate contracts, such as interest rate floors) to economically hedge positions and compensate for net interest margin compression by increasing the total return associated with the related securities through fees generated from these options. Although the revenue received from these options is recorded as non-interest income rather than interest income, the increased return attributable to the related securities from these options contributes to the Company’s overall profitability. The Company’s exposure to interest rate risk may be impacted by these transactions. To further mitigate this risk, the Company may acquire fixed-rate term debt or use financial derivative instruments. There were no covered call options outstanding as of September 30, 2026 and September 30, 2025. See Note (13) “Derivative Financial Instruments” of the Consolidated Financial Statements in Item 1 of this report for further information on the Company’s fees from covered call options for the nine months ended September 30, 2026 and September 30, 2025.

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ITEM 4

CONTROLS AND PROCEDURES

As of the end of the period covered by this report, management of the Company, under the supervision and with the participation of the Chief Executive Officer and Chief Financial Officer, carried out an evaluation of the effectiveness of the design and operation of the Company’s disclosure controls and procedures as defined under Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended (“Exchange Act”). Based upon, and as of the date of that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective, in ensuring the information relating to the Company (and its consolidated subsidiaries) required to be disclosed by the Company in the reports it files or submits under the Exchange Act was recorded, processed, summarized and reported in a timely manner.

There were no changes in the Company’s internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f)) during the period that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting.

PART II —

Item 1: Legal Proceedings

In accordance with applicable accounting principles, the Company establishes an accrued liability for litigation and threatened litigation actions and proceedings when those actions present loss contingencies, which are both probable and estimable. In actions for which a loss is reasonably possible in future periods, the Company determines whether it can estimate a loss or range of possible loss. To determine whether a possible loss is estimable, the Company reviews and evaluates its material litigation on an ongoing basis, in conjunction with any outside counsel handling the matter, in light of potentially relevant factual and legal developments. This review may include information learned through the discovery process, rulings on substantive or dispositive motions, and settlement discussions.

Wintrust Mortgage Fair Lending Matter

On May 25, 2022, a Wintrust Mortgage customer filed a putative class action and asserted individual claims against Wintrust Mortgage and Wintrust Financial Corporation in the District Court for the Northern District of Illinois. Plaintiff alleged that Wintrust Mortgage discriminated against black/African American borrowers and brings class claims under the Equal Credit Opportunity Act, Sections 1981 and 1982 under Chapter 42 of the United States Code; and the Fair Housing Act of 1968. Plaintiff also asserted individual claims under theories of promissory estoppel, fraudulent inducement, and breach of contract. On September 23, 2022, Wintrust filed a motion to dismiss the entire suit and the court granted that motion to dismiss on September 27, 2023 and gave Plaintiff until October 20, 2023 to file an amended complaint. Plaintiff timely filed an amended complaint. Wintrust moved to dismiss the amended complaint on November 21, 2023 and on February 5, 2026, the court granted Wintrust’s motion with prejudice. Plaintiff filed an appeal of the second dismissal with the United States Court of Appeals for the Seventh Circuit. Briefing of the appeal was completed on August 21, 2026. Oral argument has not yet been scheduled.

Other Matters

In addition, the Company and its subsidiaries, from time to time, are subject to pending and threatened legal action and proceedings arising in the ordinary course of business.

Based on information currently available and upon consultation with counsel, management believes that the eventual outcome of any pending or threatened legal actions and proceedings described above, including our ordinary course litigation, will not have a material adverse effect on the operations or financial condition of the Company. However, it is possible that the ultimate resolution of these matters, if unfavorable, may be material to the results of operations or financial condition for a particular period.

Item 1A: Risk Factors

There have been no material changes from the risk factors set forth under Part I, Item 1A “Risk Factors” in the 2025 Form 10-K.

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Item 2: Unregistered Sales of Equity Securities, Use of Proceeds and Issuer Purchases of Equity Securities

No purchases of the Company’s common shares were made by or on behalf of the Company or any “affiliated purchaser” as defined in Rule 10b-18(a)(3) under the Exchange Act, as amended, during the nine months ended September 30, 2026.

Item 5: Other Information

Securities Trading Plans of Directors and Officers

During the three months ended September 30, 2026, none of our directors or officers adopted or terminated a Rule 10b5-1 trading plan or adopted or terminated a non-Rule 10b5-1 trading arrangement (as each term is defined in Item 408(a) of Regulation S-K under the Exchange Act).

Item 6: Exhibits:

(a)Exhibits

31.1						Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2						Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1						Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS						The XBRL Instance Document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document (1)
101.SCH						XBRL Taxonomy Extension Schema Document
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104						Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

(1)Includes the following financial information included in the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2026, formatted in iXBRL (Inline eXtensible Business Reporting Language): (i) the Consolidated Statements of Condition, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Changes in Shareholders’ Equity, (v) the Consolidated Statements of Cash Flows, and (vi) Notes to Consolidated Financial Statements

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

WINTRUST FINANCIAL CORPORATION (Registrant)

Date:

November 4, 2026

/s/ DAVID L. STOEHR

David L. Stoehr

Executive Vice President and Chief Financial Officer (Principal Financial Officer and duly authorized officer)

Date:

November 4, 2026

/s/ JEFFREY D. HAHNFELD

Jeffrey D. Hahnfeld

Executive Vice President, Controller and Chief Accounting Officer (Principal Accounting Officer and duly authorized officer)

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