Exhibit 99.1

			NEWS RELEASE Investor Contact: Ben McCarville, Senior Vice President, Director of Investor Relations      920-491-7059 Media Contact: Andrea Kozek, Vice President, Public Relations Senior Manager 920-491-7518

Associated Banc-Corp Reports Second Quarter 2026 Earnings of $0.63 Per Common Share, or $0.73 Per Common Share Excluding Nonrecurring Items Recognized During the Quarter1

Results fueled by sustained organic growth trends, ongoing integration of American National Corporation.

GREEN BAY, Wis. -- July 23, 2026 -- Associated Banc-Corp (NYSE: ASB) ("Associated" or "Company") today reported net income available to common equity ("earnings") of $121 million, or $0.63 per common share, for the quarter ended June 30, 2026. These amounts compare to earnings of $117 million, or $0.70 per common share, for the quarter ended March 31, 2026 and earnings of $108 million, or $0.65 per common share, for the quarter ended June 30, 2025.

The Company's results for the quarter ended June 30, 2026 were impacted by several nonrecurring expenses associated with the acquisition of American National Corporation that closed on April 1, 2026. Excluding the impact of these nonrecurring items, the Company reported adjusted earnings of $140 million, or $0.73 per common share1.

"Organic growth continues to be a primary focus for our company, and midway through 2026, we've maintained our momentum in several important ways," said President & CEO Andy Harmening. "Through June 30th, we've seen double-digit C&I growth, excellent household growth, and strong, improving annual deposit growth--all while maintaining our disciplined approach to expense management and credit. We've also been pleased with the American National partnership, which has largely come in as expected."

"As we look to the back half of 2026 and into 2027, we expect to maintain our growth trajectory through steady execution of organic initiatives and the successful integration of American National Corporation. We look forward to demonstrating our ability to deliver profitable growth sustainably over time."

Second Quarter 2026 Highlights

•Total period end loans of $36.5 billion (+15% vs. 1Q 2026; +19% vs. 2Q 2025)

•Total period end commercial & industrial loans of $13.8 billion (+11% vs. 1Q 2026; +22% vs. 2Q 2025)

•Total period end deposits of $39.9 billion (+12% vs. 1Q 2026; +17% vs. 2Q 2025)

•Total period end core customer deposits1 of $34.2 billion (+12% vs. 1Q 2026; +21% vs. 2Q 2025)

•Net interest income of $370 million (+20% vs. 1Q 2026; +23% vs. 2Q 2025)

•Net interest margin of 3.17%

•Noninterest income of $80 million

•Noninterest expense of $272 million

•Provision for credit losses of $19 million

•Allowance for credit losses on loans / total loans of 1.36%

•Net charge offs / average loans (annualized) of 0.26%

1 This is a non-GAAP financial measure. See financial tables for a reconciliation of non-GAAP financial measures to GAAP financial measures.

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Loans

Second quarter 2026 average total loans of $35.9 billion increased 15%, or $4.6 billion, from the prior quarter and increased 18%, or $5.4 billion, from the same period last year. With respect to second quarter 2026 average balances by loan category:

•Commercial and business lending increased $1.8 billion from the prior quarter and increased $2.7 billion from the same period last year to $14.8 billion.

•Commercial real estate lending increased $1.6 billion from the prior quarter and increased $1.5 billion from the same period last year to $8.9 billion.

•Consumer lending increased $1.2 billion from the prior quarter and increased $1.2 billion from the same period last year to $12.2 billion.

Second quarter 2026 period end total loans of $36.5 billion increased 15%, or $4.7 billion, from the prior quarter and increased 19%, or $5.9 billion, from the same period last year. With respect to second quarter 2026 period end balances by loan category:

•Commercial and business lending increased $1.8 billion from the prior quarter and increased $2.9 billion from the same period last year to $15.3 billion.

•Commercial real estate lending increased $1.7 billion from the prior quarter and increased $1.7 billion from the same period last year to $9.0 billion.

•Consumer lending increased $1.2 billion from the prior quarter and increased $1.2 billion from the same period last year to $12.1 billion.

We now expect 2026 period end loan growth of 18% to 20% as compared to Associated's standalone results for the year ended December 31, 2025.

Deposits

Second quarter 2026 average deposits of $40.4 billion increased 15%, or $5.2 billion, from the prior quarter and increased 18%, or $6.2 billion, from the same period last year. With respect to second quarter 2026 average balances by deposit category:

•Noninterest-bearing demand deposits increased $1.1 billion from the prior quarter and increased $1.4 billion from the same period last year to $7.1 billion.

•Savings increased $514 million from the prior quarter and increased $824 million from the same period last year to $6.0 billion.

•Interest-bearing demand deposits increased $834 million from the prior quarter and increased $1.0 billion from the same period last year to $8.7 billion.

•Money market deposits increased $1.6 billion from the prior quarter and increased $1.7 billion from the same period last year to $7.6 billion.

•Brokered CDs increased $558 million from the prior quarter and decreased $4 million from the same period last year to $4.1 billion.

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•Other time deposits increased $711 million from the prior quarter and increased $1.2 billion from the same period last year to $4.9 billion.

•Network transaction deposits decreased $38 million from the prior quarter and increased $36 million from the same period last year to $1.9 billion.

•Core customer deposits1 increased $4.7 billion from the prior quarter and increased $6.1 billion from the same period last year to $34.4 billion.

Second quarter 2026 period end deposits of $39.9 billion increased 12%, or $4.2 billion, from the prior quarter and increased 17%, or $5.8 billion, from the same period last year. With respect to second quarter 2026 period end balances by deposit category:

•Noninterest-bearing demand deposits increased $783 million from the prior quarter and increased $1.1 billion from the same period last year to $6.9 billion.

•Savings increased $511 million from the prior quarter and increased $880 million from the same period last year to $6.2 billion.

•Interest-bearing demand deposits increased $733 million from the prior quarter and increased $1.2 billion from the same period last year to $8.7 billion.

•Money market deposits increased $1.4 billion from the prior quarter and increased $1.7 billion from the same period last year to $7.6 billion.

•Brokered CDs increased $371 million from the prior quarter and decreased $138 million from the same period last year to $3.9 billion.

•Other time deposits increased $298 million from the prior quarter and increased $980 million from the same period last year to $4.8 billion.

•Network transaction deposits increased $77 million from the prior quarter and increased $31 million from the same period last year to $1.8 billion.

•Core customer deposits1 increased $3.8 billion from the prior quarter and increased $5.9 billion from the same period last year to $34.2 billion.

We continue to expect 2026 period end total deposit growth of 17% to 19% and period end core customer deposit growth of 19% to 21% as compared to Associated's standalone results for the year ended December 31, 2025.

Net Interest Income and Net Interest Margin

Second quarter 2026 net interest income of $370 million increased $63 million from the prior quarter and increased $70 million from the same period last year. The net interest margin of 3.17% was a 14 basis point increase from the prior quarter and a 13 basis point increase from the same period last year.

•The average yield on total loans for the second quarter of 2026 increased 14 basis points from the prior quarter and decreased 22 basis points from the same period last year to 5.67%.

•The average cost of total interest-bearing liabilities for the second quarter of 2026 decreased 1 basis point from the prior quarter and decreased 36 basis points from the same period last year to 2.66%.

1 This is a non-GAAP financial measure. See financial tables for a reconciliation of non-GAAP financial measures to GAAP financial measures.

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•The net free funds benefit for the second quarter of 2026 increased 2 basis points from the prior quarter and decreased 4 basis points from the same period last year to 0.52%.

We expect 2026 net interest income growth of 19% to 21% as compared to Associated's standalone results for the year ended December 31, 2025.

Noninterest Income

Second quarter 2026 total noninterest income of $80 million increased $5 million from the prior quarter and increased $13 million from the same period last year. With respect to second quarter 2026 noninterest income line items:

•Card-based fees increased $3 million from the prior quarter and increased $3 million from the same period last year.

•Service charges and deposit account fees increased $2 million from the prior quarter and increased $3 million from the same period last year.

•Capital markets, net increased $1 million from the prior quarter and increased $2 million from the same period last year.

•Wealth management fees increased $1 million from the prior quarter and increased $3 million from the same period last year.

•Mortgage banking, net decreased $3 million from the prior quarter and decreased $1 million from the same period last year.

We continue to expect total noninterest income growth of 8% to 10% in 2026 as compared to Associated's standalone results for the year ended December 31, 2025.

Noninterest Expense

Second quarter 2026 total noninterest expense of $272 million increased $53 million from the prior quarter and increased $63 million from the same period last year. Second quarter 2026 total noninterest expense included $24 million of nonrecurring costs associated with the acquisition of American National Corporation, which closed on April 1, 2026. With respect to second quarter 2026 noninterest expense line items:

•Personnel expense increased $26 million from the prior quarter and increased $34 million from the same period last year.

•Legal and professional expense increased $11 million from the prior quarter and increased $11 million from the same period last year.

•Other intangible amortization increased $5 million from the prior quarter and increased $5 million from the same period last year.

•Technology expense increased $3 million from the prior quarter and increased $6 million from the same period last year.

We expect 2026 noninterest expense growth of 20% to 21% as compared to Associated's standalone results for the year ended December 31, 2025. This figure includes nonrecurring costs incurred in connection with the acquisition of American National Corporation.

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Taxes

Second quarter 2026 income tax expense was $36 million, compared to $33 million of income tax expense in the prior quarter and $28 million of income tax expense in the same period last year. The effective tax rate for the second quarter of 2026 was 22.37%, compared to 21.75% in the prior quarter and 20.34% in the same period last year.

We continue to expect the annual effective tax rate to be between 19% and 21% in 2026.

Credit

Second quarter 2026 provision for credit losses on loans was $19 million, compared to a provision of $11 million in the prior quarter and a provision of $18 million in the same period last year. With respect to second quarter 2026 credit quality:

•Nonaccrual loans of $150 million increased $39 million from the prior quarter and increased $37 million from the same period last year. The nonaccrual loans to total loans ratio was 0.41% in the second quarter, up from 0.35% in the prior quarter and up from 0.37% in the same period last year.

•Second quarter 2026 net charge offs of $23 million increased compared to net charge offs of $5 million in the prior quarter and increased compared to net charge offs of $13 million in the same period last year.

•The allowance for credit losses on loans (ACLL) of $494 million increased $69 million compared to the prior quarter and increased $83 million compared to the same period last year. The ACLL to total loans ratio was 1.36% in the second quarter, up from 1.34% in the prior quarter and up from 1.35% in the same period last year.

In 2026, we continue to expect to adjust provision to reflect changes to risk grades, economic conditions, loan volumes, and other indications of credit quality.

Capital

The Company’s capital position remains strong, with a CET1 capital ratio of 10.47% at June 30, 2026. The Company’s capital ratios continue to be in excess of the Basel III “well-capitalized” regulatory benchmarks on a fully phased in basis.

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SECOND QUARTER 2026 EARNINGS RELEASE CONFERENCE CALL

The Company will host a conference call for investors and analysts at 4:00 p.m. Central Time (CT) today, July 23, 2026. Interested parties can access the live webcast of the call through the Investor Relations section of the Company's website, http://investor.associatedbank.com. Parties may also dial into the call at 877-407-8037 (domestic) or 201-689-8037 (international) and request the Associated Banc-Corp second quarter 2026 earnings call. The second quarter 2026 financial tables with an accompanying slide presentation will be available on the Company's website just prior to the call. An audio archive of the webcast will be available on the Company's website approximately fifteen minutes after the call is over.

ABOUT ASSOCIATED BANC-CORP

Associated Banc-Corp (NYSE: ASB) has total assets of $52 billion and is the largest bank holding company based in Wisconsin. Headquartered in Green Bay, Wisconsin, Associated is a leading Midwest banking franchise, offering a full range of financial products and services from over 200 banking locations throughout Wisconsin, Illinois, Iowa, Minnesota, Missouri and Nebraska. The Company also operates loan production offices in Indiana, Kansas, Michigan, New York, Ohio and Texas. Associated Bank, N.A. is an Equal Housing Lender, Equal Opportunity Lender and Member FDIC. More information about Associated Banc-Corp is available at www.associatedbank.com.

FORWARD-LOOKING STATEMENTS

Statements made in this presentation which are not purely historical are forward-looking statements, as defined in the Private Securities Litigation Reform Act of 1995. This includes any statements regarding management’s plans, objectives, or goals for future operations, products or services, and forecasts of its revenues, earnings, or other measures of performance. Such forward-looking statements may be identified by the use of words such as “believe,” “expect,” “anticipate,” “plan,” “estimate,” “should,” “intend,” "target,” “outlook,” “project,” “guidance,” “forecast,” or similar expressions. Forward-looking statements are based on current management expectations and, by their nature, are subject to risks and uncertainties. Actual results may differ materially from those contained in the forward-looking statements. Factors which may cause actual results to differ materially from those contained in such forward-looking statements include those identified in the Company’s most recent Form 10-K and subsequent Form 10-Qs and other SEC filings, and such factors are incorporated herein by reference.

NON-GAAP FINANCIAL MEASURES

This press release and related materials may contain references to measures which are not defined in generally accepted accounting principles (“GAAP”). Information concerning these non-GAAP financial measures can be found in the financial tables. Management believes these measures are meaningful because they reflect adjustments commonly made by management, investors, regulators, and analysts to evaluate the adequacy of earnings per common share, provide a greater understanding of ongoing operations and enhance comparability of results with prior periods.

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Associated Banc-Corp Consolidated Balance Sheets (Unaudited)
(Dollars in thousands)			June 30, 2026			March 31, 2026			Sequential Quarter Change			December 31, 2025			September 30, 2025			June 30, 2025			Comparable Quarter Change
Assets
Cash and due from banks			$	548,057		$	465,318		$	82,739		$	574,698		$	490,431		$	521,167		$	26,890
Interest-bearing deposits in other financial institutions			1,268,379			920,684			347,695			1,144,123			802,251			738,938			529,441
Federal funds sold and securities purchased under agreements to resell			14,355			175			14,180			1,400			90			—			14,355
Available for sale (AFS) investment securities, net, at fair value			6,366,586			5,514,456			852,130			5,397,563			5,217,278			5,036,508			1,330,078
Held to maturity (HTM) investment securities, net, at amortized cost			3,510,726			3,570,843			(60,117)			3,602,519			3,636,080			3,672,101			(161,375)
Equity securities			29,960			26,109			3,851			26,060			26,000			25,912			4,048
Regulatory stocks, at cost			329,436			290,189			39,247			252,514			251,642			278,356			51,080
Residential loans held for sale			94,490			87,461			7,029			72,499			74,563			96,804			(2,314)
Commercial loans held for sale			15,000			—			15,000			—			—			8,406			6,594
Loans			36,467,040			31,798,164			4,668,876			31,163,614			30,951,964			30,607,605			5,859,435
Allowance for loan losses			(443,729)			(385,756)			(57,973)			(378,068)			(378,341)			(376,515)			(67,214)
Loans, net			36,023,311			31,412,408			4,610,903			30,785,546			30,573,623			30,231,091			5,792,220
Tax credit and other investments			235,536			230,954			4,582			236,657			245,239			247,111			(11,575)
Premises and equipment, net			449,003			376,760			72,243			381,624			384,139			377,372			71,631
Bank and corporate owned life insurance			717,116			694,765			22,351			694,452			693,511			691,470			25,646
Goodwill			1,147,081			1,104,992			42,089			1,104,992			1,104,992			1,104,992			42,089
Other intangible assets, net			116,953			20,647			96,306			22,849			25,052			27,255			89,698
Mortgage servicing rights, net			87,683			87,599			84			86,337			85,063			85,245			2,438
Interest receivable			181,916			161,021			20,895			161,118			168,451			168,627			13,289
Other assets			676,918			629,359			47,559			657,645			677,458			682,373			(5,455)
Total assets			$	51,812,506		$	45,593,740		$	6,218,766		$	45,202,596		$	44,455,863		$	43,993,729		$	7,818,777
Liabilities and stockholders' equity
Noninterest-bearing demand deposits			$	6,908,338		$	6,125,067		$	783,271		$	6,126,632		$	5,906,251		$	5,782,487		$	1,125,851
Interest-bearing deposits			33,022,917			29,606,698			3,416,219			29,425,976			28,975,602			28,365,079			4,657,838
Total deposits			39,931,255			35,731,765			4,199,490			35,552,608			34,881,853			34,147,565			5,783,690
Federal funds purchased and securities sold under agreements to repurchase			529,276			395,652			133,624			307,864			399,665			75,585			453,691
FHLB advances			4,574,681			3,421,762			1,152,919			3,268,094			3,220,679			3,879,489			695,192
Senior and subordinated debt			591,080			592,629			(1,549)			594,276			594,074			593,530			(2,450)
Allowance for unfunded commitments			50,744			39,276			11,468			41,276			36,276			35,276			15,468
Accrued expenses and other liabilities			497,347			414,784			82,563			463,131			455,019			481,503			15,844
Total liabilities			46,174,383			40,595,868			5,578,515			40,227,249			39,587,565			39,212,948			6,961,435
Stockholders' equity
Preferred equity			194,112			194,112			—			194,112			194,112			194,112			—
Common equity			5,444,011			4,803,760			640,251			4,781,235			4,674,186			4,586,669			857,342
Total stockholders' equity			5,638,123			4,997,872			640,251			4,975,347			4,868,298			4,780,781			857,342
Total liabilities and stockholders' equity			$	51,812,506		$	45,593,740		$	6,218,766		$	45,202,596		$	44,455,863		$	43,993,729		$	7,818,777

Numbers may not recalculate due to rounding conventions.

1

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Associated Banc-Corp Consolidated Statements of Income (Unaudited)									Comparable Quarter						Year to Date (YTD)						Comparable YTD
(Dollars and shares in thousands, except per share data)			2Q26			2Q25			Dollar Change			Percentage Change			June 2026			June 2025			Dollar Change			Percentage Change
Interest income
Interest and fees on loans			$	506,528		$	447,781		$	58,747		13		%	$	933,516		$	881,080		$	52,436		6		%
Interest and dividends on investment securities
Taxable			88,347			71,174			17,173			24		%	164,023			140,962			23,061			16		%
Tax-exempt			13,725			13,902			(177)			(1)		%	27,463			27,858			(395)			(1)		%
Other interest			14,694			12,679			2,015			16		%	26,335			21,921			4,414			20		%
Total interest income			623,294			545,536			77,758			14		%	1,151,337			1,071,821			79,516			7		%
Interest expense
Interest on deposits			203,765			197,656			6,109			3		%	379,038			406,796			(27,758)			(7)		%
Interest on federal funds purchased and securities sold under agreements to repurchase			4,085			2,004			2,081			104		%	7,818			5,626			2,192			39		%
Interest on FHLB advances			35,052			34,889			163			—		%	66,621			50,979			15,642			31		%
Interest on senior and subordinated debt			10,163			10,700			(537)			(5)		%	20,326			21,785			(1,459)			(7)		%
Interest on other interest-bearing liabilities			190			287			(97)			(34)		%	306			695			(389)			(56)		%
Total interest expense			253,255			245,536			7,719			3		%	474,109			485,881			(11,772)			(2)		%
Net interest income			370,039			300,000			70,039			23		%	677,228			585,940			91,288			16		%
Provision for credit losses			19,388			17,996			1,392			8		%	30,389			30,999			(610)			(2)		%
Net interest income after provision for credit losses			350,651			282,004			68,647			24		%	646,839			554,941			91,898			17		%
Noninterest income
Wealth management fees			26,217			23,025			3,192			14		%	51,435			45,522			5,913			13		%
Service charges and deposit account fees			15,863			13,147			2,716			21		%	29,916			25,961			3,955			15		%
Card-based fees			14,161			11,200			2,961			26		%	25,740			21,642			4,098			19		%
Other fee-based revenue			5,758			4,995			763			15		%	10,623			10,245			378			4		%
Capital markets, net			7,476			5,765			1,711			30		%	14,018			10,110			3,908			39		%
Mortgage banking, net			2,777			4,213			(1,436)			(34)		%	8,888			8,035			853			11		%
Loss on mortgage portfolio sale			—			—			—			N/M			—			(6,976)			6,976			(100)		%
Bank and corporate owned life insurance			4,615			4,135			480			12		%	8,430			9,339			(909)			(10)		%
Asset gains (losses), net			789			(1,735)			2,524			N/M			1,629			(2,613)			4,242			N/M
Investment securities gains, net			35			7			28			N/M			6			11			(5)			(45)		%
Other			2,707			2,226			481			22		%	5,571			4,477			1,094			24		%
Total noninterest income			80,398			66,977			13,421			20		%	156,256			125,754			30,502			24		%
Noninterest expense
Personnel			161,168			126,994			34,174			27		%	296,341			250,890			45,451			18		%
Technology			32,867			26,508			6,359			24		%	62,603			53,646			8,957			17		%
Occupancy			14,091			12,644			1,447			11		%	27,817			28,025			(208)			(1)		%
Business development and advertising			8,548			7,748			800			10		%	16,374			14,134			2,240			16		%
Equipment			5,423			4,494			929			21		%	11,033			9,021			2,012			22		%
Legal and professional			17,454			6,674			10,780			162		%	24,176			12,757			11,419			90		%
Loan and foreclosure costs			1,552			2,705			(1,153)			(43)		%	3,259			5,299			(2,040)			(38)		%
FDIC assessment			10,595			9,708			887			9		%	19,432			20,144			(712)			(4)		%
Other intangible amortization			6,894			2,203			4,691			N/M			9,096			4,405			4,691			106		%
Other			13,290			9,674			3,616			37		%	20,914			21,648			(734)			(3)		%
Total noninterest expense			271,882			209,352			62,530			30		%	491,045			419,971			71,074			17		%
Income before income taxes			159,167			139,629			19,538			14		%	312,050			260,724			51,326			20		%
Income tax expense			35,603			28,399			7,204			25		%	68,850			47,808			21,042			44		%
Net income			123,564			111,230			12,334			11		%	243,200			212,916			30,284			14		%
Preferred stock dividends			2,875			2,875			—			—		%	5,750			5,750			—			—		%
Net income available to common equity			$	120,689		$	108,355		$	12,334		11		%	$	237,450		$	207,166		$	30,284		15		%
Pre-tax pre-provision income(a)			178,555			157,625			20,930			13		%	342,439			291,723			50,716			17		%
Earnings per common share
Basic			$	0.64		$	0.65		$	(0.01)		(2)		%	$	1.34		$	1.25		$	0.09		7		%
Diluted			$	0.63		$	0.65		$	(0.02)		(3)		%	$	1.33		$	1.24		$	0.09		7		%
Average common shares outstanding
Basic			188,084			164,936			23,148			14		%	176,654			165,081			11,573			7		%
Diluted			189,899			166,343			23,556			14		%	178,402			166,506			11,896			7		%

N/M = Not meaningful

Numbers may not recalculate due to rounding conventions.

Prior periods have been adjusted to conform with current period presentation.

(a) This is a non-GAAP financial measure. See the non-GAAP financial measures reconciliation below for a reconciliation to GAAP financial measures.

2

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Associated Banc-Corp Consolidated Statements of Income (Unaudited) - Quarterly Trend
(Dollars and shares in thousands, except per share data)									Sequential Quarter
			2Q26			1Q26			Dollar Change			Percentage Change			4Q25			3Q25			2Q25
Interest income
Interest and fees on loans			$	506,528		$	426,989		$	79,539		19		%	$	445,687		$	455,623		$	447,781
Interest and dividends on investment securities
Taxable			88,347			75,676			12,671			17		%	73,511			73,727			71,174
Tax-exempt			13,725			13,738			(13)			—		%	13,851			13,888			13,902
Other interest			14,694			11,641			3,053			26		%	11,294			13,353			12,679
Total interest income			623,294			528,044			95,250			18		%	544,343			556,591			545,536
Interest expense
Interest on deposits			203,765			175,273			28,492			16		%	194,778			202,344			197,656
Interest on federal funds purchased and securities sold under agreements to repurchase			4,085			3,732			353			9		%	2,682			2,107			2,004
Interest on FHLB advances			35,052			31,570			3,482			11		%	26,309			35,965			34,889
Interest on senior and subordinated debt			10,163			10,163			—			—		%	10,483			10,741			10,700
Interest on other interest-bearing liabilities			190			116			74			64		%	110			212			287
Total interest expense			253,255			220,854			32,401			15		%	234,362			251,369			245,536
Net interest income			370,039			307,190			62,849			20		%	309,981			305,222			300,000
Provision for credit losses			19,388			11,001			8,387			76		%	6,998			16,000			17,996
Net interest income after provision for credit losses			350,651			296,189			54,462			18		%	302,983			289,223			282,004
Noninterest income
Wealth management fees			26,217			25,219			998			4		%	25,742			25,315			23,025
Service charges and deposit account fees			15,863			14,054			1,809			13		%	13,827			13,861			13,147
Card-based fees			14,161			11,579			2,582			22		%	12,679			12,308			11,200
Other fee-based revenue			5,758			4,862			896			18		%	5,557			5,414			4,995
Capital markets, net			7,476			6,543			933			14		%	11,175			10,764			5,765
Mortgage banking, net			2,777			6,111			(3,334)			(55)		%	2,926			3,541			4,213
Bank and corporate owned life insurance			4,615			3,816			799			21		%	3,804			4,051			4,135
Asset gains (losses), net			789			840			(51)			(6)		%	838			3,340			(1,735)
Investment securities gains (losses), net			35			(28)			63			N/M			37			1			7
Other			2,707			2,861			(154)			(5)		%	2,799			2,670			2,226
Total noninterest income			80,398			75,857			4,541			6		%	79,384			81,265			66,977
Noninterest expense
Personnel			161,168			135,172			25,996			19		%	135,130			135,703			126,994
Technology			32,867			29,736			3,131			11		%	28,641			28,590			26,508
Occupancy			14,091			13,725			366			3		%	14,229			12,757			12,644
Business development and advertising			8,548			7,827			721			9		%	9,118			8,362			7,748
Equipment			5,423			5,610			(187)			(3)		%	6,888			4,368			4,494
Legal and professional			17,454			6,721			10,733			160		%	5,945			5,232			6,674
Loan and foreclosure costs			1,552			1,707			(155)			(9)		%	1,327			1,638			2,705
FDIC assessment			10,595			8,837			1,758			20		%	6,589			9,980			9,708
Other intangible amortization			6,894			2,203			4,691			N/M			2,203			2,203			2,203
Other			13,290			7,625			5,665			74		%	9,396			7,369			9,674
Total noninterest expense			271,882			219,163			52,719			24		%	219,466			216,202			209,352
Income before income taxes			159,167			152,883			6,284			4		%	162,901			154,286			139,629
Income tax expense			35,603			33,248			2,355			7		%	25,772			29,554			28,399
Net income			123,564			119,635			3,929			3		%	137,129			124,732			111,230
Preferred stock dividends			2,875			2,875			—			—		%	2,875			2,875			2,875
Net income available to common equity			$	120,689		$	116,760		$	3,929		3		%	$	134,254		$	121,857		$	108,355
Pre-tax pre-provision income(a)			178,555			163,884			14,671			9		%	169,899			170,286			157,625
Earnings per common share
Basic			$	0.64		$	0.70		$	(0.06)		(9)		%	$	0.81		$	0.73		$	0.65
Diluted			$	0.63		$	0.70		$	(0.07)		(10)		%	$	0.80		$	0.73		$	0.65
Average common shares outstanding
Basic			188,084			165,097			22,987			14		%	165,126			165,029			164,936
Diluted			189,899			166,561			23,338			14		%	166,746			166,703			166,343

N/M = Not meaningful

Numbers may not recalculate due to rounding conventions.

Prior periods have been adjusted to conform with current period presentation.

(a) This is a non-GAAP financial measure. See the non-GAAP financial measures reconciliation below for a reconciliation to GAAP financial measures.

3

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Associated Banc-Corp Net Interest Income Analysis - Fully Tax-Equivalent Basis - Sequential and Comparable Quarter
			Three Months Ended
			June 30, 2026									March 31, 2026									June 30, 2025(a)
(Dollars in thousands)			Average Balance			Interest Income /Expense			Average Yield /Rate			Average Balance			Interest Income /Expense			Average Yield /Rate			Average Balance			Interest Income /Expense			Average Yield /Rate
Assets
Earning assets
Loans (b)(c)
Commercial and industrial			$	13,185,643		$	197,248		6.00		%	$	11,776,702		$	172,507		5.94		%	$	10,981,221		$	179,955		6.57		%
Commercial real estate—owner occupied			1,577,489			22,000			5.59		%	1,190,708			15,968			5.44		%	1,114,054			16,014			5.77		%
Commercial and business lending			14,763,132			219,248			5.96		%	12,967,410			188,475			5.89		%	12,095,274			195,969			6.50		%
Commercial real estate—investor			6,502,707			99,131			6.11		%	5,277,283			78,154			6.01		%	5,582,333			91,569			6.58		%
Real estate construction			2,410,500			40,425			6.73		%	2,055,338			34,043			6.72		%	1,869,708			33,883			7.27		%
Commercial real estate lending			8,913,207			139,556			6.28		%	7,332,621			112,197			6.21		%	7,452,041			125,452			6.75		%
Total commercial			23,676,339			358,804			6.08		%	20,300,031			300,672			6.01		%	19,547,316			321,421			6.59		%
Residential mortgage			6,916,754			65,963			3.81		%	6,831,984			64,640			3.78		%	7,034,607			64,995			3.70		%
Auto finance			4,044,290			58,768			5.83		%	3,125,504			41,969			5.45		%	2,933,161			41,156			5.63		%
Home equity			817,378			13,096			6.41		%	709,865			11,692			6.60		%	667,339			12,098			7.25		%
Other consumer			415,476			10,388			10.03		%	314,118			8,504			10.98		%	309,578			8,644			11.20		%
Total consumer			12,193,898			148,215			4.87		%	10,981,471			126,805			4.65		%	10,944,685			126,893			4.64		%
Total loans			35,870,237			507,019			5.67		%	31,281,502			427,477			5.53		%	30,492,001			448,313			5.89		%
Investments
Taxable securities			8,153,435			88,347			4.33		%	7,071,751			75,676			4.28		%	6,578,690			71,174			4.33		%
Tax-exempt securities(b)			1,971,946			17,373			3.52		%	1,978,501			17,389			3.52		%	2,004,725			17,598			3.51		%
Other short-term investments			1,291,636			14,694			4.56		%	1,016,795			11,641			4.64		%	999,294			12,679			5.09		%
Total investments			11,417,017			120,414			4.22		%	10,067,047			104,706			4.17		%	9,582,709			101,451			4.24		%
Total earning assets and related interest income			47,287,254			$	627,433		5.32		%	41,348,549			$	532,183		5.20		%	40,074,710			$	549,764		5.50		%
Other assets, net			3,948,588									3,670,399									3,345,353
Total assets			$	51,235,842								$	45,018,948								$	43,420,063
Liabilities and stockholders' equity
Interest-bearing liabilities
Interest-bearing deposits
Savings			$	6,046,605		$	19,815		1.31		%	$	5,532,848		$	17,690		1.30		%	$	5,222,869		$	17,139		1.32		%
Interest-bearing demand			8,720,180			37,161			1.71		%	7,886,442			34,236			1.76		%	7,683,402			42,485			2.22		%
Money market			7,641,652			45,976			2.41		%	6,061,442			34,239			2.29		%	5,988,947			38,695			2.59		%
Network transaction deposits			1,879,876			17,459			3.73		%	1,917,854			17,502			3.70		%	1,843,998			20,211			4.40		%
Brokered CDs			4,085,995			40,487			3.97		%	3,528,294			34,811			4.00		%	4,089,844			45,418			4.45		%
Other time deposits			4,945,821			42,867			3.48		%	4,234,785			36,795			3.52		%	3,725,205			33,707			3.63		%
Total interest-bearing deposits			33,320,129			203,765			2.45		%	29,161,665			175,273			2.44		%	28,554,266			197,656			2.78		%
Federal funds purchased and securities sold under agreements to repurchase			460,414			4,085			3.56		%	425,142			3,732			3.56		%	220,872			2,004			3.64		%
FHLB advances			3,733,950			35,052			3.77		%	3,380,379			31,570			3.79		%	3,221,749			34,889			4.34		%
Senior and subordinated debt			592,195			10,163			6.86		%	594,401			10,163			6.84		%	592,399			10,700			7.22		%
Other interest-bearing liabilities			16,430			190			4.64		%	11,212			116			4.18		%	17,844			287			6.45		%
Total funding			4,802,989			49,490			4.13		%	4,411,134			45,581			4.18		%	4,052,863			47,880			4.74		%
Total interest-bearing liabilities and related interest expense			38,123,118			$	253,255		2.66		%	33,572,799			$	220,854		2.67		%	32,607,129			$	245,536		3.02		%
Noninterest-bearing demand deposits			7,062,098									5,999,278									5,648,935
Other liabilities			422,642									440,344									431,338
Stockholders’ equity			5,627,984									5,006,527									4,732,661
Total liabilities and stockholders’ equity			$	51,235,842								$	45,018,948								$	43,420,063
Interest rate spread									2.65		%							2.53		%							2.48		%
Net free funds									0.52		%							0.50		%							0.56		%
Fully tax-equivalent net interest income and net interest margin						$	374,178		3.17		%				$	311,329		3.03		%				$	304,228		3.04		%
Fully tax-equivalent adjustment						(4,139)									(4,139)									(4,228)
Net interest income						$	370,039								$	307,190								$	300,000

Numbers may not recalculate due to rounding conventions.

(a)Prior period has been adjusted to conform with current period presentation.

(b)The yield on tax-exempt loans and securities is computed on a fully tax-equivalent basis using a tax rate of 21%.

(c)Loans held for sale have been included in the average balances.

4

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Associated Banc-Corp Net Interest Income Analysis - Fully Tax-Equivalent Basis - Year Over Year
			Six Months Ended June 30,
			2026									2025(a)
(Dollars in thousands)			Average Balance			Interest Income /Expense			Average Yield / Rate			Average Balance			Interest Income /Expense			Average Yield / Rate
Assets
Earning assets
Loans (b) (c)
Commercial and industrial			$	12,485,064		$	369,755		5.97		%	$	10,783,368		$	349,740		6.54		%
Commercial real estate—owner occupied			1,385,167			37,968			5.53		%	1,127,535			32,214			5.76		%
Commercial and business lending			13,870,231			407,723			5.93		%	11,910,904			381,954			6.46		%
Commercial real estate—investor			5,893,380			177,285			6.06		%	5,499,334			178,658			6.55		%
Real estate construction			2,233,900			74,468			6.72		%	1,884,065			67,829			7.26		%
Commercial real estate lending			8,127,280			251,753			6.24		%	7,383,399			246,486			6.73		%
Total commercial			21,997,511			659,476			6.04		%	19,294,303			628,440			6.57		%
Residential mortgage			6,874,603			130,603			3.80		%	7,144,851			131,818			3.69		%
Auto finance			3,587,435			100,736			5.66		%	2,889,190			80,332			5.61		%
Home equity			763,919			24,788			6.49		%	662,509			24,150			7.29		%
Other consumer			365,077			18,892			10.44		%	311,691			17,417			11.27		%
Total consumer			11,591,034			275,019			4.76		%	11,008,241			253,717			4.62		%
Total loans			33,588,545			934,495			5.60		%	30,302,544			882,157			5.86		%
Investments
Taxable securities			7,615,581			164,023			4.31		%	6,489,135			140,962			4.34		%
Tax-exempt securities(b)			1,975,205			34,763			3.52		%	2,010,403			35,264			3.51		%
Other short-term investments			1,154,975			26,335			4.60		%	878,929			21,921			5.03		%
Total investments			10,745,761			225,121			4.19		%	9,378,467			198,147			4.23		%
Total earning assets and related interest income			44,334,306			$	1,159,616		5.26		%	39,681,011			$	1,080,304		5.48		%
Other assets, net			3,810,263									3,346,515
Total assets			$	48,144,569								$	43,027,526
Liabilities and stockholders' equity
Interest-bearing liabilities
Interest-bearing deposits
Savings			$	5,791,146		$	37,505		1.31		%	$	5,192,835		$	35,068		1.36		%
Interest-bearing demand			8,305,614			71,397			1.73		%	7,856,593			87,915			2.26		%
Money market			6,855,912			80,215			2.36		%	6,033,999			78,255			2.62		%
Network transaction deposits			1,898,760			34,961			3.71		%	1,845,974			40,278			4.40		%
Brokered CDs			3,808,685			75,298			3.99		%	4,201,955			94,711			4.55		%
Other time deposits			4,592,267			79,662			3.50		%	3,740,683			70,569			3.80		%
Total interest-bearing deposits			31,252,384			379,038			2.45		%	28,872,038			406,796			2.84		%
Federal funds purchased and securities sold under agreements to repurchase			442,876			7,818			3.56		%	297,963			5,626			3.81		%
FHLB advances			3,558,141			66,621			3.78		%	2,413,352			50,979			4.26		%
Senior and subordinated debt			593,292			20,326			6.85		%	609,788			21,785			7.15		%
Other interest-bearing liabilities			13,835			306			4.46		%	24,683			695			5.68		%
Total funding			4,608,144			95,071			4.15		%	3,345,786			79,085			4.76		%
Total interest-bearing liabilities and related interest expense			35,860,528			$	474,109		2.67		%	32,217,824			$	485,881		3.04		%
Noninterest-bearing demand deposits			6,533,624									5,644,554
Other liabilities			431,445									483,247
Stockholders’ equity			5,318,972									4,681,901
Total liabilities and stockholders’ equity			$	48,144,569								$	43,027,526
Interest rate spread									2.59		%							2.44		%
Net free funds									0.51		%							0.57		%
Fully tax-equivalent net interest income and net interest margin						$	685,507		3.10		%				$	594,423		3.01		%
Fully tax-equivalent adjustment						(8,279)									(8,483)
Net interest income						$	677,228								$	585,940

Numbers may not recalculate due to rounding conventions.

(a)Prior period has been adjusted to conform with current period presentation.

(b)The yield on tax-exempt loans and securities is computed on a fully tax-equivalent basis using a tax rate of 21%.

(c)Loans held for sale have been included in the average balances.

5

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Associated Banc-Corp Loan and Deposit Composition
(Dollars in thousands)
Period end loan composition			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Commercial and industrial			$	13,750,175		$	12,339,597		11		%	$	11,799,757		$	11,567,651		$	11,281,964		22		%
Commercial real estate—owner occupied			1,575,445			1,193,778			32		%	1,186,324			1,149,939			1,101,501			43		%
Commercial and business lending			15,325,620			13,533,375			13		%	12,986,081			12,717,590			12,383,465			24		%
Commercial real estate—investor			6,492,950			5,266,584			23		%	5,246,030			5,369,441			5,370,422			21		%
Real estate construction			2,546,186			2,117,479			20		%	1,994,642			1,958,766			1,950,267			31		%
Commercial real estate lending			9,039,136			7,384,063			22		%	7,240,672			7,328,207			7,320,689			23		%
Total commercial			24,364,756			20,917,438			16		%	20,226,753			20,045,797			19,704,154			24		%
Residential mortgage			6,808,398			6,727,734			1		%	6,793,957			6,858,285			6,949,387			(2)		%
Auto finance			4,044,416			3,136,334			29		%	3,106,498			3,041,644			2,969,495			36		%
Home equity			826,343			706,075			17		%	713,271			698,112			676,208			22		%
Other consumer			423,127			310,583			36		%	323,135			308,126			308,361			37		%
Total consumer			12,102,284			10,880,726			11		%	10,936,861			10,906,167			10,903,451			11		%
Total loans			$	36,467,040		$	31,798,164		15		%	$	31,163,614		$	30,951,964		$	30,607,605		19		%
Quarter average loan composition(a)			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Commercial and industrial			$	13,185,643		$	11,776,702		12		%	$	11,588,059		$	11,367,533		$	10,981,221		20		%
Commercial real estate—owner occupied			1,577,489			1,190,708			32		%	1,157,531			1,105,787			1,114,054			42		%
Commercial and business lending			14,763,132			12,967,410			14		%	12,745,590			12,473,319			12,095,274			22		%
Commercial real estate—investor			6,502,707			5,277,283			23		%	5,291,562			5,300,765			5,582,333			16		%
Real estate construction			2,410,500			2,055,338			17		%	1,974,318			1,991,565			1,869,708			29		%
Commercial real estate lending			8,913,207			7,332,621			22		%	7,265,880			7,292,330			7,452,041			20		%
Total commercial			23,676,339			20,300,031			17		%	20,011,470			19,765,649			19,547,316			21		%
Residential mortgage			6,916,754			6,831,984			1		%	6,899,778			6,987,858			7,034,607			(2)		%
Auto finance			4,044,290			3,125,504			29		%	3,064,457			3,000,978			2,933,161			38		%
Home equity			817,378			709,865			15		%	706,923			690,330			667,339			22		%
Other consumer			415,476			314,118			32		%	312,730			305,644			309,578			34		%
Total consumer			12,193,898			10,981,471			11		%	10,983,888			10,984,811			10,944,685			11		%
Total loans			$	35,870,237		$	31,281,502		15		%	$	30,995,358		$	30,750,460		$	30,492,001		18		%
Period end deposit and customer funding composition			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Noninterest-bearing demand			$	6,908,338		$	6,125,067		13		%	$	6,126,632		$	5,906,251		$	5,782,487		19		%
Savings			6,171,614			5,660,641			9		%	5,471,870			5,380,574			5,291,674			17		%
Interest-bearing demand			8,697,879			7,964,665			9		%	7,823,362			7,791,861			7,490,772			16		%
Money market			7,614,164			6,188,045			23		%	6,139,438			5,785,871			5,915,867			29		%
Network transaction deposits			1,823,130			1,746,518			4		%	2,154,995			2,013,964			1,792,362			2		%
Brokered CDs			3,933,787			3,562,752			10		%	3,795,133			3,956,517			4,072,048			(3)		%
Other time deposits			4,782,343			4,484,077			7		%	4,041,178			4,046,815			3,802,356			26		%
Total deposits			39,931,255			35,731,765			12		%	35,552,608			34,881,853			34,147,565			17		%
Other customer funding(b)			55,371			42,372			31		%	47,794			64,570			75,440			(27)		%
Total deposits and other customer funding			$	39,986,626		$	35,774,137		12		%	$	35,600,402		$	34,946,423		$	34,223,005		17		%
Core customer deposits(c) and other customer funding			$	34,229,709		$	30,464,867		12		%	$	29,650,274		$	28,975,941		$	28,358,595		21		%
Quarter average deposit composition			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Noninterest-bearing demand			$	7,062,098		$	5,999,278		18		%	$	6,064,487		$	5,796,676		$	5,648,935		25		%
Savings			6,046,605			5,532,848			9		%	5,436,968			5,338,129			5,222,869			16		%
Interest-bearing demand			8,720,180			7,886,442			11		%	8,054,088			7,898,770			7,683,402			13		%
Money market			7,641,652			6,061,442			26		%	5,890,836			5,860,802			5,988,947			28		%
Network transaction deposits			1,879,876			1,917,854			(2)		%	2,090,587			1,933,659			1,843,998			2		%
Brokered CDs			4,085,995			3,528,294			16		%	3,998,012			3,916,329			4,089,844			—		%
Other time deposits			4,945,821			4,234,785			17		%	4,093,939			3,961,522			3,725,205			33		%
Total deposits			40,382,227			35,160,943			15		%	35,628,917			34,705,887			34,203,201			18		%
Other customer funding(b)			57,029			43,973			30		%	45,973			74,305			80,010			(29)		%
Total deposits and other customer funding			$	40,439,256		$	35,204,916		15		%	$	35,674,890		$	34,780,192		$	34,283,211		18		%
Core customer deposits(c) and other customer funding			$	34,473,385		$	29,758,768		16		%	$	29,586,291		$	28,930,204		$	28,349,369		22		%

Numbers may not recalculate due to rounding conventions.

(a) Loans held for sale have been included in the average balances.

(b) Includes repurchase agreements.

(c) This is a non-GAAP financial measure. See the non-GAAP financial measures reconciliation below for a reconciliation to GAAP financial measures.

6

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Associated Banc-Corp Selected Asset Quality Information
(Dollars in thousands)			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Allowance for loan losses
Balance at beginning of period			$	385,756		$	378,068		2		%	$	378,341		$	376,515		$	371,348		4		%
Provision for loan losses recorded at acquisition			397			—			N/M			—			—			—			N/M
Allowance for PCD loans acquired			39,512			—			N/M			—			—			—			N/M
Allowance for purchased seasoned loans acquired			28,263			—			N/M			—			—			—			N/M
Balance at April 1, 2026			453,928			—			N/M			—			—			—			N/M
Provision for loan losses			13,000			13,000			—		%	2,000			15,000			18,000			(28)		%
Charge offs			(26,282)			(8,210)			N/M			(7,636)			(15,254)			(18,348)			43		%
Recoveries			3,083			2,898			6		%	5,363			2,081			5,515			(44)		%
Net charge offs			(23,199)			(5,312)			N/M			(2,273)			(13,173)			(12,833)			81		%
Balance at end of period			$	443,729		$	385,756		15		%	$	378,068		$	378,341		$	376,515		18		%
Allowance for unfunded commitments
Balance at beginning of period			$	39,276		$	41,276		(5)		%	$	36,276		$	35,276		$	35,276		11		%
Allowance for PCD unfunded commitments acquired			3,597			—			N/M			—			—			—			N/M
Allowance for purchased seasoned unfunded commitments acquired			1,871			—			N/M			—			—			—			N/M
Balance at April 1, 2026			44,744			—			N/M			—			—			—			N/M
Provision for unfunded commitments			6,000			(2,000)			N/M			5,000			1,000			—			N/M
Balance at end of period			50,744			39,276			29		%	41,276			36,276			35,276			44		%
Allowance for credit losses on loans (ACLL)			$	494,473		$	425,032		16		%	$	419,344		$	414,618		$	411,791		20		%
Provision for credit losses on loans			$	19,397		$	11,000		76		%	$	7,000		$	16,000		$	18,000		8		%
(Dollars in thousands)			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Net (charge offs) recoveries
Commercial and industrial			$	(17,604)		$	(2,736)		N/M			$	1,524		$	(1,230)		$	(1,826)		N/M
Commercial real estate—owner occupied			—			—			N/M			(113)			—			—			N/M
Commercial and business lending			(17,604)			(2,736)			N/M			1,411			(1,230)			(1,826)			N/M
Commercial real estate—investor			(2,710)			500			N/M			94			(8,930)			(8,493)			(68)		%
Real estate construction			2			2			—		%	2			2			121			(98)		%
Commercial real estate lending			(2,708)			502			N/M			96			(8,928)			(8,372)			(68)		%
Total commercial			(20,312)			(2,234)			N/M			1,507			(10,158)			(10,198)			99		%
Residential mortgage			(197)			148			N/M			(197)			(231)			(302)			(35)		%
Auto finance			(1,508)			(1,843)			(18)		%	(2,010)			(1,505)			(689)			119		%
Home equity			251			439			(43)		%	2			56			237			6		%
Other consumer			(1,433)			(1,822)			(21)		%	(1,575)			(1,336)			(1,881)			(24)		%
Total consumer			(2,887)			(3,078)			(6)		%	(3,780)			(3,015)			(2,636)			10		%
Total net charge offs			$	(23,199)		$	(5,312)		N/M			$	(2,273)		$	(13,173)		$	(12,833)		81		%
(In basis points)			Jun 30, 2026			Mar 31, 2026						Dec 31, 2025			Sep 30, 2025			Jun 30, 2025
Net (charge offs) recoveries to average loans (annualized)
Commercial and industrial			(54)			(9)						5			(4)			(7)
Commercial real estate—owner occupied			—			—						(4)			—			—
Commercial and business lending			(48)			(9)						4			(4)			(6)
Commercial real estate—investor			(17)			4						1			(67)			(61)
Real estate construction			—			—						—			—			3
Commercial real estate lending			(12)			3						1			(49)			(45)
Total commercial			(34)			(4)						3			(20)			(21)
Residential mortgage			(1)			1						(1)			(1)			(2)
Auto finance			(15)			(24)						(26)			(20)			(9)
Home equity			12			25						—			3			14
Other consumer			(138)			(235)						(200)			(173)			(244)
Total consumer			(9)			(11)						(14)			(11)			(10)
Total net charge offs			(26)			(7)						(3)			(17)			(17)
(Dollars in thousands)			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Credit quality
Nonaccrual loans			$	149,953		$	110,581		36		%	$	100,428		$	106,179		$	112,999		33		%
Other real estate owned (OREO)			34,052			32,534			5		%	28,016			29,268			34,287			(1)		%
Repossessed assets			1,293			806			60		%	757			789			882			47		%
Total nonperforming assets			$	185,298		$	143,921		29		%	$	129,201		$	136,236		$	148,169		25		%
Accruing loans past due 90 days or more(a)			$	2,288		$	2,490		(8)		%	$	2,814		$	2,692		$	14,160		(84)		%
Allowance for credit losses on loans to total loans			1.36		%	1.34		%				1.35		%	1.34		%	1.35		%
Allowance for credit losses on loans to nonaccrual loans			329.75		%	384.36		%				417.56		%	390.49		%	364.42		%
Nonaccrual loans to total loans			0.41		%	0.35		%				0.32		%	0.34		%	0.37		%
Nonperforming assets to total loans plus OREO and repossessed assets			0.51		%	0.45		%				0.41		%	0.44		%	0.48		%
Nonperforming assets to total assets			0.36		%	0.32		%				0.29		%	0.31		%	0.34		%

7

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Associated Banc-Corp Selected Asset Quality Information (continued)
(Dollars in thousands)			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Nonaccrual loans
Commercial and industrial			$	44,388		$	19,606		126		%	$	7,178		$	12,802		$	6,945		N/M
Commercial real estate—owner occupied			3,255			34			N/M			203			203			—			N/M
Commercial and business lending			47,643			19,640			143		%	7,381			13,006			6,945			N/M
Commercial real estate—investor			11,184			8,078			38		%	8,311			7,333			15,805			(29)		%
Real estate construction			2,974			25			N/M			144			145			146			N/M
Commercial real estate lending			14,158			8,103			75		%	8,455			7,478			15,950			(11)		%
Total commercial			61,801			27,743			123		%	15,836			20,484			22,895			170		%
Residential mortgage			70,335			66,890			5		%	68,492			69,093			73,817			(5)		%
Auto finance			10,973			8,888			23		%	8,271			8,218			8,004			37		%
Home equity			6,582			6,950			(5)		%	7,774			8,299			8,201			(20)		%
Other consumer			262			110			138		%	55			85			82			N/M
Total consumer			88,152			82,838			6		%	84,592			85,696			90,104			(2)		%
Total nonaccrual loans			$	149,953		$	110,581		36		%	$	100,428		$	106,179		$	112,999		33		%
(Dollars in thousands)			Jun 30, 2026			Mar 31, 2026			Seql Qtr % Change			Dec 31, 2025			Sep 30, 2025			Jun 30, 2025			Comp Qtr % Change
Accruing loans 30-89 days past due
Commercial and industrial			$	10,668		$	24,253		(56)		%	$	2,683		$	1,071		$	2,593		N/M
Commercial real estate—owner occupied			893			345			159		%	34			—			5,628			(84)		%
Commercial and business lending			11,561			24,598			(53)		%	2,717			1,071			8,221			41		%
Commercial real estate—investor			3,089			33,487			(91)		%	19,405			14,190			1,042			196		%
Real estate construction			1,437			—			N/M			117			21			90			N/M
Commercial real estate lending			4,526			33,487			(86)		%	19,522			14,211			1,132			N/M
Total commercial			16,087			58,085			(72)		%	22,239			15,282			9,353			72		%
Residential mortgage			14,034			7,755			81		%	13,135			12,684			8,744			60		%
Auto finance			20,367			14,549			40		%	16,445			14,013			13,149			55		%
Home equity			4,536			2,742			65		%	3,779			4,265			4,338			5		%
Other consumer(a)			2,988			2,173			38		%	2,704			2,728			2,578			16		%
Total consumer			41,925			27,219			54		%	36,063			33,689			28,810			46		%
Total accruing loans 30-89 days past due			$	58,012		$	85,304		(32)		%	$	58,302		$	48,971		$	38,163		52		%

N/M = Not meaningful

Numbers may not recalculate due to rounding conventions.

(a) Excluding guaranteed student loans.

8

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Associated Banc-Corp Selected Quarterly Information
(Dollars and shares in thousands, except per share data and as noted)			YTD Jun 2026			YTD Jun 2025			2Q26			1Q26			4Q25			3Q25			2Q25
Per common share data
Dividends			$	0.48		$	0.46		$	0.24		$	0.24		$	0.24		$	0.23		$	0.23
Market value:
High			31.34			25.63			31.34			29.37			27.14			27.01			24.56
Low			24.34			18.91			25.98			24.34			24.11			23.78			18.91
Close									30.77			25.86			25.76			25.71			24.39
Book value / share(a)									28.85			29.04			28.81			28.17			27.67
Tangible book value (TBV) / share(a)(b)									22.15			22.23			22.01			21.36			20.84
Selected trend information
Net interest margin(c)			3.10		%	3.01		%	3.17		%	3.03		%	3.06		%	3.04		%	3.04		%
Effective tax rate			22.06		%	18.34		%	22.37		%	21.75		%	15.82		%	19.16		%	20.34		%
Noninterest expense / average assets(c)			2.06		%	1.97		%	2.13		%	1.97		%	1.96		%	1.95		%	1.93		%
Dividend payout ratio(d)			35.82		%	36.80		%	37.50		%	34.29		%	29.63		%	31.51		%	35.38		%
Loans / deposits ratio									91.32		%	88.99		%	87.65		%	88.73		%	89.63		%
Assets under management, at market value(e)									$	17,009		$	15,708		$	16,132		$	16,178		$	15,537
Common shares repurchased during period(f)			894			900			—			894			—			—			—
Common shares outstanding, end of period									188,718			165,438			165,980			165,904			165,778
Risk-based capital(g)(h)
Total risk-weighted assets									$	41,108,329		$	35,773,810		$	35,125,680		$	34,688,358		$	34,241,408
Common equity Tier 1(i)									$	4,304,915		$	3,744,610		$	3,683,711		$	3,584,712		$	3,493,316
Common equity Tier 1 capital ratio(i)									10.47		%	10.47		%	10.49		%	10.33		%	10.20		%
Tier 1 capital ratio									10.94		%	11.01		%	11.04		%	10.89		%	10.77		%
Total capital ratio									12.79		%	13.02		%	13.08		%	12.94		%	12.83		%
Tier 1 leverage ratio									8.99		%	8.98		%	8.96		%	8.81		%	8.72		%
Selected equity and performance ratios
Total stockholders’ equity / total assets									10.88		%	10.96		%	11.01		%	10.95		%	10.87		%
Tangible common equity / tangible assets (TCE Ratio)(b)									8.27		%	8.27		%	8.29		%	8.18		%	8.06		%
Average stockholders' equity / average assets			11.05		%	10.88		%	10.98		%	11.12		%	11.05		%	10.95		%	10.90		%
Return on average equity(c)			9.22		%	9.17		%	8.81		%	9.69		%	11.09		%	10.26		%	9.43		%
Return on average tangible common equity (ROATCE)(b)(c)			12.54		%	12.66		%	12.12		%	13.03		%	15.04		%	14.02		%	12.96		%
Return on average assets(c)			1.02		%	1.00		%	0.97		%	1.08		%	1.23		%	1.12		%	1.03		%
Return on average tangible assets(b)(c)			1.07		%	1.04		%	1.03		%	1.12		%	1.27		%	1.17		%	1.07		%
Efficiency ratios (expense / revenue)
Fully tax-equivalent efficiency ratio			57.26		%	57.70		%	58.30		%	56.03		%	55.21		%	54.77		%	55.81		%
Adjusted efficiency ratio(b)			54.23		%	57.15		%	52.91		%	55.77		%	55.15		%	54.77		%	55.81		%

Numbers may not recalculate due to rounding conventions.

(a)Based on period end common shares outstanding.

(b)This is a non-GAAP financial measure. See the non-GAAP financial measures reconciliation below for a reconciliation to GAAP financial measures.

(c)This ratio is annualized.

(d)Ratio is based upon basic earnings per common share.

(e)In millions. Excludes assets held in brokerage accounts.

(f)Does not include repurchases related to tax withholding on equity compensation.

(g)The Federal Reserve establishes regulatory capital requirements, including well-capitalized standards for the Corporation. The regulatory capital requirements effective for the Corporation follow Basel III, subject to certain transition provisions.

(h)June 30, 2026 data is estimated.

(i)The Corporation is not classified as an advanced approaches holding company as defined by the Federal Reserve. As such, the Corporation has elected to be subject to the AOCI-related adjustments when calculating common equity tier 1 capital which allows the Corporation to opt-out of the requirement to include most components of AOCI in common equity tier 1 capital.

9

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Associated Banc-Corp Non-GAAP Financial Measures Reconciliation			YTD			YTD
(Dollars in thousands)			Jun 2026			Jun 2025			2Q26			1Q26			4Q25			3Q25			2Q25
Tangible common equity reconciliation
Common equity									$	5,444,011		$	4,803,760		$	4,781,235		$	4,674,186		$	4,586,669
Less: Goodwill and other intangible assets, net									1,264,034			1,125,639			1,127,842			1,130,044			1,132,247
Tangible common equity for TBV / share and TCE Ratio									$	4,179,977		$	3,678,121		$	3,653,393		$	3,544,142		$	3,454,422
Tangible assets reconciliation
Total assets									$	51,812,506		$	45,593,740		$	45,202,596		$	44,455,863		$	43,993,729
Less: Goodwill and other intangible assets, net									1,264,034			1,125,639			1,127,842			1,130,044			1,132,247
Tangible assets for TCE Ratio									$	50,548,472		$	44,468,101		$	44,074,754		$	43,325,819		$	42,861,482
Average tangible common equity reconciliation
Average common equity			$	5,124,860		$	4,487,789		$	5,433,872		$	4,812,415		$	4,713,445		$	4,627,038		$	4,538,549
Less: Average goodwill and other intangible assets, net			1,197,702			1,134,600			1,267,876			1,126,748			1,129,055			1,131,385			1,133,627
Average tangible common equity for ROATCE			3,927,158			3,353,189			$	4,165,996		$	3,685,667		$	3,584,390		$	3,495,653		$	3,404,922
Average tangible assets reconciliation
Average total assets			$	48,144,569		$	43,027,526		$	51,235,842		$	45,018,948		$	44,402,771		$	44,015,203		$	43,420,063
Less: Average goodwill and other intangible assets, net			1,197,702			1,134,600			1,267,876			1,126,748			1,129,055			1,131,385			1,133,627
Average tangible assets for return on average tangible assets			$	46,946,867		$	41,892,926		$	49,967,966		$	43,892,200		$	43,273,716		$	42,883,818		$	42,286,436
Adjusted net income reconciliation
Net income			$	243,200		$	212,916		$	123,564		$	119,635		$	137,129		$	124,732		$	111,230
Other intangible amortization, net of tax			6,822			3,304			5,170			1,652			1,652			1,652			1,652
Adjusted net income for return on average tangible assets			$	250,022		$	216,220		$	128,734		$	121,287		$	138,781		$	126,384		$	112,882
Adjusted net income available to common equity reconciliation
Net income available to common equity			$	237,450		$	207,166		$	120,689		$	116,760		$	134,254		$	121,857		$	108,355
Other intangible amortization, net of tax			6,822			3,304			5,170			1,652			1,652			1,652			1,652
Adjusted net income available to common equity for ROATCE			$	244,272		$	210,470		$	125,859		$	118,412		$	135,906		$	123,509		$	110,007
Pre-tax pre-provision income
Income before income taxes			$	312,050		$	260,724		$	159,167		$	152,883		$	162,901		$	154,286		$	139,629
Provision for credit losses			30,389			30,999			19,388			11,001			6,998			16,000			17,996
Pre-tax pre-provision income			$	342,439		$	291,723		$	178,555		$	163,884		$	169,899		$	170,286		$	157,625
Period end core customer deposits reconciliation
Total deposits									$	39,931,255		$	35,731,765		$	35,552,608		$	34,881,853		$	34,147,565
Less: Network transaction deposits									1,823,130			1,746,518			2,154,995			2,013,964			1,792,362
Less: Brokered CDs									3,933,787			3,562,752			3,795,133			3,956,517			4,072,048
Core customer deposits									$	34,174,338		$	30,422,495		$	29,602,480		$	28,911,371		$	28,283,155
Average core customer deposits reconciliation
Average total deposits			$	37,786,008		$	34,516,592		$	40,382,227		$	35,160,943		$	35,628,917		$	34,705,887		$	34,203,201
Less: Average network transaction deposits			1,898,760			1,845,974			1,879,876			1,917,854			2,090,587			1,933,659			1,843,998
Less: Average brokered CDs			3,808,685			4,201,955			4,085,995			3,528,294			3,998,012			3,916,329			4,089,844
Average core customer deposits			$	32,078,563		$	28,468,663		$	34,416,356		$	29,714,795		$	29,540,318		$	28,855,899		$	28,269,359
Total expense for efficiency ratios reconciliation
Noninterest expense			$	491,045		$	419,971		$	271,882		$	219,163		$	219,466		$	216,202		$	209,352
Less: Other intangible amortization			9,096			4,405			6,894			2,203			2,203			2,203			2,203
Total expense for fully tax-equivalent efficiency ratio			481,949			415,566			264,988			216,960			217,263			213,999			207,149
Less: Acquisition costs(a)			25,476			—			24,469			1,007			252			—			—
Total expense for adjusted efficiency ratio			$	456,473		$	415,566		$	240,519		$	215,953		$	217,011		$	213,999		$	207,149
Total revenue for efficiency ratios reconciliation
Net interest income			$	677,228		$	585,940		$	370,039		$	307,190		$	309,981		$	305,222		$	300,000
Noninterest income			156,256			125,754			80,398			75,857			79,384			81,265			66,977
Less: Investment securities (losses) gains, net			6			11			35			(28)			37			1			7
Fully tax-equivalent adjustment			8,279			8,483			4,139			4,139			4,196			4,222			4,228
Total revenue for fully tax-equivalent efficiency ratio			841,757			720,166			454,541			387,214			393,524			390,708			371,198
Less: Announced initiatives(b)			—			(6,976)			—			—			—			—			—
Total revenue for adjusted efficiency ratio			$	841,757		$	727,142		$	454,541		$	387,214		$	393,524		$	390,708		$	371,198

Numbers may not recalculate due to rounding conventions.

(a)During the fourth quarter of 2025, the Corporation entered into a definitive agreement to acquire American National. The acquisition was completed on April 1, 2026. These costs, incurred in connection with the acquisition, represent nonrecurring costs.

(b)Announced initiatives include the loss on mortgage portfolio sale as a result of balance sheet repositioning that the Corporation announced in the fourth quarter of 2024.

(continued)

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Associated Banc-Corp Non-GAAP Financial Measures Reconciliation
(Dollars in thousands)			2Q26
Adjusted net income available to common equity reconciliation
Net income available to common equity			$	120,689
Acquisition costs, net of tax			18,996
Adjusted net income available to common equity for adjusted earnings per share			$	139,685

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