Exhibit 99.1

FOR IMMEDIATE RELEASE:                 

Orrstown Financial Services, Inc. Reports Third Quarter 2026 Results

•Net income of $22.8 million, or $1.17 per diluted share, for the three months ended September 30, 2026 compared to net income of $21.2 million, or $1.09 per diluted share, for the three months ended June 30, 2026;

•Net interest margin, on a tax equivalent basis, increased by 25 basis points to 4.12% in the third quarter of 2026 compared to 3.87% in the second quarter of 2026; excluding the amortization of the fair value mark on the redeemed subordinated notes, net interest margin was 4.00% (1) in the second quarter of 2026;

•Return on average assets was 1.60% and return on average equity was 14.62% for the three months ended September 30, 2026, compared to 1.53% and 13.96%, respectively, for the three months ended June 30, 2026;

•Total loans increased by $95.3 million, or 9% annualized, from June 30, 2026 to September 30, 2026; classified loans decreased by 8% during the third quarter of 2026; nonaccrual loans to total loans decreased to 0.54% at September 30, 2026 from 0.58% at June 30, 2026;

•Total deposits decreased by $38.1 million, or 3% annualized, from June 30, 2026 to September 30, 2026;

•Efficiency ratio was 56.0% for the three months ended September 30, 2026 compared to 60.1% for the three months ended June 30, 2026;

•Federal income tax credits purchased resulted in a $0.4 million income tax benefit for the third quarter of 2026 compared to an income tax benefit of $1.6 million from tax credit purchases during the second quarter of 2026;

•The Board of Directors declared a cash dividend of $0.30 per common share, payable November 10, 2026, to shareholders of record as of November 3, 2026.

HARRISBURG, PA (October 20, 2026) -- Orrstown Financial Services, Inc. (the "Company") (NASDAQ: ORRF), the parent company of Orrstown Bank (the “Bank”), announced earnings for the three and nine months ended September 30, 2026. Net income totaled $22.8 million for the three months ended September 30, 2026, compared to net income of $21.2 million and $21.9 million for the three months ended June 30, 2026 and September 30, 2025, respectively. Diluted earnings per share was $1.17 for the three months ended September 30, 2026, compared to $1.09 and $1.13 for the three months ended June 30, 2026 and September 30, 2025, respectively.

Adam L. Metz, President and Chief Executive Officer, said, “Orrstown delivered strong third quarter results, with diluted earnings per common share of $1.17 and a return on average assets of 1.60%. The quarter demonstrated solid execution across the franchise, including a 25 basis point increase in net interest margin to 4.12%, a 56.0% efficiency ratio and 9% annualized loan growth. We also continued to see favorable trends in credit quality, with both classified loans and nonaccrual loans declining during the quarter. Our results reflect the progress we are making in growing core net interest income while actively managing funding costs and the declining benefit of purchase accounting accretion from our previous merger. Although the economic, interest rate and competitive environments remain dynamic, we enter the remainder of the year from a position of strength and are confident in our ability to execute across a range of economic conditions.”

(1) Non-GAAP measure. See Appendix A for additional information.

1

---

DISCUSSION OF RESULTS

Balance Sheet

Loans

Loans held for investment increased by $95.3 million, or approximately 9% annualized, from $4.1 billion at June 30, 2026 to $4.2 billion at September 30, 2026. Commercial loans increased by $45.4 million, or approximately 6% annualized, from June 30, 2026 to September 30, 2026, with particularly strong growth in the commercial and industrial segment. Home equity lines of credit increased by $31.6 million, or approximately 36% annualized, which included purchases with a principal balance totaling $15.5 million. The retail teams have been successful in recent efforts over the past several quarters to drive growth in this category. First lien residential mortgages increased by $17.0 million, or approximately 13% annualized.

Investment Securities

Investment securities, all of which are classified as available-for-sale, decreased by $29.9 million to $919.4 million at September 30, 2026 from $949.3 million at June 30, 2026. During the three months ended September 30, 2026, net unrealized losses on investment securities increased by $41.6 million as a result of widening spreads and a rise in interest rates. The Bank purchased $34.9 million of investment securities, consisting of $24.9 million of agency mortgage backed securities and collateralized mortgage obligations and $10.0 million of non-agency collateralized mortgage obligations during the third quarter of 2026. The remaining change in investment securities during the quarter was due primarily to paydowns of $24.2 million, partially offset by net accretion of $1.4 million. The overall duration of the Company's investment securities portfolio was 4.2 years at September 30, 2026 compared to 4.5 years at June 30, 2026. See Appendix B for a summary of the Bank's investment securities at September 30, 2026, highlighting their concentrations and credit ratings.

Deposits

During the third quarter of 2026, deposits decreased by $38.1 million, or 3% annualized, and totaled $4.6 billion at both September 30, 2026 and June 30, 2026. Time deposits, interest-bearing demand deposits, non-interest bearing deposits and savings deposits decreased by $28.1 million, $25.1 million, $24.8 million and $8.7 million, respectively. The decreases were primarily due to normal seasonal activity as well as time deposit maturities. These decreases were partially offset by a $48.6 million increase in money market deposits resulting from both promotional activities and the purchase of $25.1 million of brokered deposits. The Bank's loan-to-deposit ratio was 92% at September 30, 2026 compared to 89% at June 30, 2026.

Borrowings

The Company actively manages its liquidity position through its various sources of funding to meet the needs of its clients. FHLB advances and other borrowings were $417.3 million at September 30, 2026 compared to $274.8 million at June 30, 2026. The higher utilization of borrowings during the third quarter of 2026 was primarily to fund loan growth. The Bank seeks to maintain sufficient liquidity to ensure that client needs can be addressed in a timely basis. The Bank had available alternative funding sources, such as FHLB advances and other wholesale options, of $1.7 billion at September 30, 2026.

2

---

Income Statement

Net Interest Income and Margin

Net interest income increased by $4.5 million to $53.3 million for the three months ended September 30, 2026 compared to $48.8 million for the three months ended June 30, 2026. The net interest margin, on a tax equivalent basis, increased by 25 basis points to 4.12% in the third quarter of 2026 from 3.87% in the second quarter of 2026. The yield on interest-earning assets increased by eight basis points and the cost of deposits decreased by five basis points during the three months ended September 30, 2026 compared to the three months ended June 30, 2026. In addition, the net interest margin in the second quarter of 2026 includes the $1.6 million accelerated amortization expense of the subordinated notes' fair value mark. Excluding the amortization of the fair value mark on the redeemed subordinated notes, net interest margin was 4.00%(1) in the second quarter of 2026.

Interest income on loans, on a tax equivalent basis, increased by $3.2 million to $66.7 million for the three months ended September 30, 2026 compared to $63.5 million for the three months ended June 30, 2026. Average loans increased by $92.6 million during the three months ended September 30, 2026 compared to the three months ended June 30, 2026. Interest income on loans includes accretion on purchase accounting marks of $3.9 million for the three months ended September 30, 2026 compared to $4.3 million for the three months ended June 30, 2026. Prepayment fee income on loans increased by $335 thousand during the third quarter of 2026 compared to the second quarter of 2026.

Interest expense, on a tax equivalent basis, decreased by $1.5 million to $24.4 million for the three months ended September 30, 2026 compared to $25.9 million for the three months ended June 30, 2026. Borrowing costs decreased by $1.1 million during the three months ended September 30, 2026 compared to the three months ended June 30, 2026 primarily due to the accelerated amortization of the remaining subordinated debt fair value mark of $1.6 million during the second quarter of 2026.

The cost of deposits decreased by five basis points during the three months ended September 30, 2026 compared to the three months ended June 30, 2026. Average interest-bearing deposits decreased by $27.9 million during the three months ended September 30, 2026 compared to the three months ended June 30, 2026. Average FHLB advances and other borrowings increased by $130.6 million from the three months ended June 30, 2026 to the three months ended September 30, 2026 driven by loan growth in addition to maintaining sufficient liquidity due to seasonal deposit activity during the third quarter of 2026.

Provision for Credit Losses on Loans

The allowance for credit losses ("ACL") on loans increased to $46.8 million at September 30, 2026 from $46.6 million at June 30, 2026. The ACL to total loans was 1.11% at September 30, 2026 compared to 1.13% at June 30, 2026. The Company recorded provision expense on loans of $1.1 million for the three months ended September 30, 2026 compared to $0.4 million for the three months ended June 30, 2026. The increase in provision expense resulted from strong loan growth, net charge-offs and updates to our qualitative factors, partially offset by a favorable GDP forecast and macroeconomic conditions. Net charge-offs were $1.0 million during the three months ended September 30, 2026 compared to $1.2 million during the three months ended June 30, 2026.

Classified loans decreased by $4.0 million to $45.2 million at September 30, 2026 from $49.2 million at June 30, 2026 due to repayments of $5.3 million and charge-offs of $1.0 million, partially offset by net downgrades of $2.3 million. Nonaccrual loans totaled $22.9 million at September 30, 2026 compared to $23.8 million at June 30, 2026. The decrease of $0.9 million in nonaccrual loans was due to repayments of $1.5 million and net charge offs totaling $1.0 million, partially offset by loans placed on nonaccrual status of $1.6 million. Nonaccrual loans to total loans decreased to 0.54% at September 30, 2026 from 0.58% at June 30, 2026. Management believes the ACL to be adequate based on current asset quality metrics and economic forecasts.

(1) Non-GAAP measure. See Appendix A for additional information.

3

---

Noninterest Income

Noninterest income decreased by $0.4 million to $13.4 million for the three months ended September 30, 2026 from $13.8 million for the three months ended June 30, 2026.

Swap fee income decreased by $0.3 million to $0.4 million for the three months ended September 30, 2026 compared to $0.7 million for the three months ended June 30, 2026. Swap fee income will fluctuate based on market conditions and client demand.

Mortgage banking income decreased by $0.2 million to $0.2 million for the three months ended September 30, 2026 from $0.4 million for the three months ended June 30, 2026. The decrease was due to a reduction in loan sale activity and a decrease in the fair value adjustment of loans held-for-sale and in the pipeline due to rising market interest rates.

Wealth management income was $6.0 million for the three months ended September 30, 2026 compared to $5.9 million for the three months ended June 30, 2026.

Noninterest Expenses

Noninterest expenses decreased by $0.4 million to $37.3 million for the three months ended September 30, 2026 from $37.7 million in the three months ended June 30, 2026.

Professional services expense decreased by $0.2 million to $1.0 million for the three months ended September 30, 2026 compared to $1.2 million for the three months ended June 30, 2026. The Company continues to focus on reducing third-party utilization.

Other operating expenses decreased by $0.4 million to $3.9 million for the three months ended September 30, 2026 compared to $4.3 million for the three months ended June 30, 2026. This was due primarily to an increase of $0.5 million in mark-to-market gains on non-hedging derivatives from the second quarter of 2026 to the third quarter of 2026.

Salaries and benefits expense increased by $0.2 million to $22.4 million for the three months ended September 30, 2026 compared to $22.2 million for the three months ended June 30, 2026. The third quarter of 2026 reflects a full quarter impact from the increase in merit-based salaries that went into effect in May 2026 and the impact of one extra day compared to the prior quarter.

Advertising and bank promotions expense decreased by $0.7 million to $0.4 million in the three months ended September 30, 2026 from $1.1 million in the three months ended June 30, 2026 due to $0.7 million in contributions to tax credit programs during the second quarter of 2026. Taxes other than income increased by $0.6 million to $1.0 million in the three months ended September 30, 2026 compared to $0.4 million in the three months ended June 30, 2026. This increase reflects the tax credits recognized in the second quarter of 2026 as result of the charitable contributions.

Income Taxes

The Company's effective tax rate was 19.4% for the third quarter of 2026 compared to 14.2% for the second quarter of 2026. The Company's effective tax rate for the three months ended September 30, 2026 is less than the 21% federal statutory rate primarily due to the purchase of federal income tax credits, which reduced income tax expense by $0.4 million. During the three months ended June 30, 2026, the Company purchased federal income tax credits, which reduced income tax expense by $1.6 million. In addition, the effective tax rate for both periods was impacted by tax-exempt income, including interest earned on tax-exempt loans and securities and non-taxable income from life insurance policies and tax credits partially offset by the disallowed portion of interest expense against earnings in association with the Bank's tax-exempt investments under the Tax Equity and Fiscal Responsibility Act of 1982. The Company regularly analyzes its projected taxable income and makes adjustments to the provision for income taxes accordingly.

Capital

Shareholders’ equity totaled $605.2 million at September 30, 2026 compared to $621.7 million at June 30, 2026. The decrease of $16.5 million is primarily due to other comprehensive losses of $34.5 million and dividends of $5.9 million, partially offset by net income of $22.8 million and share-based compensation activity of $1.1 million. The change in other comprehensive losses is primarily due to the increase in net unrealized losses on investment securities caused by the widening of spreads and a rise in interest rates.

Tangible book value per common share(1) was $25.96 at September 30, 2026 compared to $26.71 at June 30, 2026. The Company's tangible common equity ratio was 9.1% of total tangible assets at September 30, 2026 compared to 9.5% at June 30, 2026. Return on average tangible common equity per common share(1) was 17.52% for the three months ended

4

---

September 30, 2026 compared to 16.86% for the three months ended June 30, 2026. The decreases in tangible book value per common share and the tangible common equity ratio were primarily due to the decrease in shareholders' equity caused by the increase in net unrealized losses on investment securities.

The Company's tier 1 common equity, tier 1 capital and total risk-based capital ratios were 12.1%, 12.3% and 13.3%, respectively, at September 30, 2026 compared to 12.0%, 12.2% and 13.2%, respectively, at June 30, 2026. The Company's Tier 1 leverage ratio increased to 10.2% at September 30, 2026 compared to 10.1% at June 30, 2026.

At September 30, 2026, all four capital ratios applicable to the Company were above regulatory minimum levels to be deemed “well capitalized” under current bank regulatory guidelines. The Company continues to believe that capital is adequate to support the risks inherent in the balance sheet, as well as growth requirements.

(1) Non-GAAP measure. See Appendix A for additional information.

Investor Relations Contact:
Neelesh Kalani
Executive Vice President, Chief Financial Officer
Phone (717) 510-7097

5

---

FINANCIAL HIGHLIGHTS (Unaudited)
			Three Months Ended												Nine Months Ended
			September 30,						September 30,						September 30,						September 30,
(In thousands)			2026						2025						2026						2025
Profitability for the period:
Net interest income			$	53,320					$	50,988					$	151,156					$	149,261
Provision for credit losses - loans			1,126						396						2,192						51
Recovery of credit losses - unfunded loan commitments			(84)						—						(460)						(100)
Noninterest income			13,378						13,382						42,791						37,921
Noninterest expenses			37,334						36,297						111,728						112,087
Income before income tax expense			28,322						27,677						80,487						75,144
Income tax expense			5,507						5,812						14,705						15,780
Net income available to common shareholders			$	22,815					$	21,865					$	65,782					$	59,364
Financial ratios:
Return on average assets (1)			1.60		%				1.60		%				1.58		%				1.47		%
Return on average assets, adjusted (1)(3)(4)			n/a						n/a						n/a						1.52		%
Return on average equity (1)			14.62		%				15.72		%				14.44		%				14.77		%
Return on average equity, adjusted (1)(3)(4)			n/a						n/a						n/a						15.28		%
Net interest margin (1)			4.12		%				4.11		%				3.97		%				4.06		%
Net interest margin, adjusted (1)(2)(4)			n/a						n/a						4.01		%				n/a
Efficiency ratio			56.0		%				56.4		%				57.6		%				59.9		%
Efficiency ratio, adjusted (2)(3)(4)			n/a						n/a						57.1		%				58.5		%
Income per common share:
Basic			$	1.18					$	1.14					$	3.40					$	3.09
Basic, adjusted (3)(4)			n/a						n/a						n/a						$	3.20
Diluted			$	1.17					$	1.13					$	3.38					$	3.07
Diluted, adjusted (3)(4)			n/a						n/a						n/a						$	3.17
Average equity to average assets			10.98		%				10.18		%				10.92		%				9.94		%
(1) Annualized for the three and nine months ended September 30, 2026 and 2025.
(2) Ratio has been adjusted for accelerated amortization of the remaining fair value mark of $1.6 million from the redemption of the subordinated notes during the nine months ended September 30, 2026.
(3) Ratio has been adjusted for the merger-related expenses for the nine months ended September 30, 2025.
(4) Non-GAAP based financial measure. Please refer to Appendix A - Supplemental Reporting of Non-GAAP Measures and GAAP to Non-GAAP Reconciliations for a discussion of our use of non-GAAP based financial measures, including tables reconciling GAAP and non-GAAP financial measures appearing herein.

6

---

FINANCIAL HIGHLIGHTS (Unaudited)
(continued)
			September 30,						December 31,
(Dollars in thousands, except per share amounts)			2026						2025
At period-end:
Total assets			$	5,707,243					$	5,542,255
Loans, net of allowance for credit losses			4,161,598						3,973,012
Loans held-for-sale, at fair value			3,924						6,090
Securities available for sale, at fair value			919,448						952,740
Total deposits			4,581,910						4,528,774
FHLB advances and other borrowings and Securities sold under agreements to repurchase			417,252						299,243
Subordinated notes and trust preferred debt			8,109						37,122
Shareholders' equity			605,200						591,535
Credit quality and capital ratios (1):
Allowance for credit losses to total loans			1.11		%				1.19		%
Total nonaccrual loans to total loans			0.54		%				0.70		%
Nonperforming assets to total assets			0.40		%				0.51		%
Allowance for credit losses to nonaccrual loans			204		%				170		%
Total risk-based capital:
Orrstown Financial Services, Inc.			13.3		%				13.3		%
Orrstown Bank			13.2		%				13.3		%
Tier 1 risk-based capital:
Orrstown Financial Services, Inc.			12.3		%				11.7		%
Orrstown Bank			12.2		%				12.2		%
Tier 1 common equity risk-based capital:
Orrstown Financial Services, Inc.			12.1		%				11.5		%
Orrstown Bank			12.2		%				12.2		%
Tier 1 leverage capital:
Orrstown Financial Services, Inc.			10.2		%				9.5		%
Orrstown Bank			10.1		%				9.9		%
Book value per common share			$	30.77					$	30.32
(1) Capital ratios are estimated for the current period, subject to regulatory filings. The Company elected the three-year phase in option for the day-one impact of ASU 2016-13 for current expected credit losses ("CECL") to regulatory capital. At December 31, 2025, the Company adjusted retained earnings, allowance for credit losses includable in tier 2 capital and the deferred tax assets from temporary differences in risk weighted assets by the permitted percentage of the day-one impact from adopting the CECL standard. At September 30, 2026, the day-one impact of ASU 2016-13 was fully applied to the capital ratios.

7

---

ORRSTOWN FINANCIAL SERVICES, INC.
CONSOLIDATED BALANCE SHEETS (Unaudited)
(Dollars in thousands, except per share amounts)			September 30, 2026						December 31, 2025
Assets
Cash and due from banks			$	48,690					$	42,083
Interest-bearing deposits with banks			76,956						107,691
Cash and cash equivalents			125,646						149,774
Restricted investments in bank stocks			32,514						26,717
Securities available for sale (amortized cost of $985,444 and $972,138 at September 30, 2026 and December 31, 2025, respectively)			919,448						952,740
Loans held for sale, at fair value			3,924						6,090
Loans			4,208,373						4,020,693
Less: Allowance for credit losses			(46,775)						(47,681)
Net loans			4,161,598						3,973,012
Premises and equipment, net			49,948						51,029
Cash surrender value of life insurance			148,345						146,994
Goodwill			69,751						69,751
Other intangible assets, net			31,457						37,990
Accrued interest receivable			20,733						21,473
Deferred tax assets, net			43,126						33,931
Other assets			100,753						72,754
Total assets			$	5,707,243					$	5,542,255
Liabilities
Deposits:
Noninterest-bearing			$	896,069					$	870,906
Interest-bearing			3,685,841						3,657,868
Total deposits			4,581,910						4,528,774
Securities sold under agreements to repurchase and federal funds purchased			—						24,542
FHLB advances and other borrowings			417,252						274,701
Subordinated notes and trust preferred debt			8,109						37,122
Other liabilities			94,772						85,581
Total liabilities			5,102,043						4,950,720
Shareholders’ Equity
Preferred stock, $1.25 par value per share; 500,000 shares authorized; no shares issued or outstanding			—						—
Common stock, no par value—$0.05205 stated value per share; 50,000,000 shares authorized; 19,706,971 shares issued and 19,670,559 outstanding at September 30, 2026; 19,711,628 shares issued and 19,507,208 outstanding at December 31, 2025			1,026						1,026
Additional paid—in capital			422,956						424,596
Retained earnings			234,886						186,752
Accumulated other comprehensive loss			(52,318)						(15,201)
Treasury stock— 36,412 and 204,420 shares, at cost at September 30, 2026 and December 31, 2025, respectively			(1,350)						(5,638)
Total shareholders’ equity			605,200						591,535
Total liabilities and shareholders’ equity			$	5,707,243					$	5,542,255

8

---

ORRSTOWN FINANCIAL SERVICES, INC.
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited)
						Three Months Ended												Nine Months Ended
						September 30,						September 30,						September 30,						September 30,
(Dollars in thousands, except per share amounts)						2026						2025						2026						2025
Interest income
Loans						$	66,454					$	65,751					$	192,764					$	192,219
Investment securities - taxable						9,901						9,367						29,658						27,717
Investment securities - tax-exempt						814						881						2,537						2,634
Short-term investments						567						1,123						1,843						4,904
Total interest income						77,736						77,122						226,802						227,474
Interest expense
Deposits						21,269						22,639						64,942						69,754
Securities sold under agreements to repurchase and federal funds purchased						6						107						132						297
FHLB advances and other borrowings						2,931						1,791						6,921						3,939
Subordinated notes and trust preferred debt						210						1,597						3,651						4,223
Total interest expense						24,416						26,134						75,646						78,213
Net interest income						53,320						50,988						151,156						149,261
Provision for credit losses - loans						1,126						396						2,192						51
Recovery of credit losses - unfunded loan commitments						(84)						—						(460)						(100)
Net interest income after net provision for (recovery of) credit losses						52,278						50,592						149,424						149,310
Noninterest income
Service charges						2,916						2,997						8,521						8,022
Interchange income						1,597						1,620						4,712						4,488
Swap fee income						436						816						2,426						1,879
Wealth management income						5,968						5,277						17,471						15,959
Mortgage banking activities						212						522						974						1,302
Income from life insurance						1,410						1,471						6,547						4,071
Investment securities gains						15						50						70						71
Other income						824						629						2,070						2,129
Total noninterest income						13,378						13,382						42,791						37,921
Noninterest expenses
Salaries and employee benefits						22,400						21,439						65,786						63,191
Occupancy, furniture and equipment						4,109						4,075						12,217						12,961
Data processing						1,752						1,116						4,992						3,005
Advertising and bank promotions						423						154						2,232						1,730
FDIC insurance						627						652						1,810						2,150
Professional services						1,015						1,703						3,438						5,545
Taxes other than income						1,022						828						2,439						2,065
Intangible asset amortization						2,115						2,410						6,533						7,417
Merger-related expenses						—						—						—						2,617
Restructuring expenses						—						—						—						91
Other operating expenses						3,871						3,920						12,281						11,315
Total noninterest expenses						37,334						36,297						111,728						112,087
Income before income tax expense						28,322						27,677						80,487						75,144
Income tax expense						5,507						5,812						14,705						15,780
Net income						$	22,815					$	21,865					$	65,782					$	59,364
continued

9

---

						Three Months Ended												Nine Months Ended
						September 30,						September 30,						September 30,						September 30,
						2026						2025						2026						2025
Share information:
Basic earnings per share						$	1.18					$	1.14					$	3.40					$	3.09
Diluted earnings per share						$	1.17					$	1.13					$	3.38					$	3.07
Dividends paid per share						$	0.30					$	0.27					$	0.90					$	0.79
Weighted average shares - basic						19,380						19,224						19,323						19,185
Weighted average shares - diluted						19,504						19,364						19,449						19,345

10

---

ANALYSIS OF NET INTEREST INCOME
Average Balances and Interest Rates, Taxable-Equivalent Basis (Unaudited)
			Three Months Ended
			9/30/2026																		6/30/2026																		3/31/2026																		12/31/2025																		9/30/2025
									Taxable-						Taxable-												Taxable-						Taxable-												Taxable-						Taxable-												Taxable-						Taxable-												Taxable-						Taxable-
			Average						Equivalent						Equivalent						Average						Equivalent						Equivalent						Average						Equivalent						Equivalent						Average						Equivalent						Equivalent						Average						Equivalent						Equivalent
(In thousands)			Balance						Interest						Rate						Balance						Interest						Rate						Balance						Interest						Rate						Balance						Interest						Rate						Balance						Interest						Rate
Assets
Federal funds sold & interest-bearing bank balances			$	62,164					$	567					3.62		%				$	69,784					$	639					3.67		%				$	70,086					$	637					3.69		%				$	103,886					$	1,017					3.88		%				$	101,728					$	1,123					4.38		%
Investment securities (1)(2)			973,344						11,064						4.54						971,932						11,096						4.57						984,060						11,079						4.51						976,957						11,177						4.58						906,399						10,593						4.67
Loans (1)(3)(4)(5)			4,167,877						66,679						6.35						4,075,290						63,542						6.25						4,070,889						63,214						6.29						3,997,842						64,635						6.42						3,979,044						65,975						6.58
Total interest-earning assets			5,203,385						78,310						5.98						5,117,006						75,277						5.90						5,125,035						74,930						5.91						5,078,685						76,829						6.01						4,987,171						77,691						6.19
Other assets			436,997																		425,913																		423,779																		426,626																		433,659
Total assets			$	5,640,382																	$	5,542,919																	$	5,548,814																	$	5,505,311																	$	5,420,830
Liabilities and Shareholders' Equity
Interest-bearing demand deposits			$	2,593,059					13,681						2.09						$	2,577,915					13,629						2.12						$	2,534,291					13,796						2.21						$	2,471,895					14,078						2.26						$	2,450,034					14,145						2.29
Savings deposits			254,541						126						0.20						260,712						128						0.20						259,585						143						0.22						262,240						164						0.25						264,761						164						0.25
Time deposits			863,559						7,462						3.43						900,412						7,930						3.53						906,875						8,047						3.60						912,611						8,342						3.63						897,416						8,330						3.68
Total interest-bearing deposits			3,711,159						21,269						2.27						3,739,039						21,687						2.33						3,700,751						21,986						2.41						3,646,746						22,584						2.46						3,612,211						22,639						2.49
Securities sold under agreements to repurchase and federal funds purchased			2,535						6						0.85						12,024						29						0.98						23,674						97						1.66						27,348						105						1.52						27,772						107						1.53
FHLB advances and other borrowings			306,346						2,931						3.80						175,734						1,635						3.73						248,357						2,355						3.85						238,806						2,371						3.94						168,939						1,791						4.21
Subordinated notes and trust preferred debt (6)			8,069						210						10.29						36,664						2,520						27.57						37,175						921						10.05						37,023						669						7.17						68,749						1,597						9.21
Total interest-bearing liabilities			4,028,109						24,416						2.40						3,963,461						25,871						2.62						4,009,957						25,359						2.56						3,949,923						25,729						2.58						3,877,671						26,134						2.67
Noninterest-bearing demand deposits			910,748																		889,378																		850,415																		882,552																		902,128
Other liabilities			82,378																		81,981																		89,112																		93,977																		89,086
Total liabilities			5,021,235																		4,934,820																		4,949,484																		4,926,452																		4,868,885
Shareholders' equity			619,147																		608,099																		599,330																		578,859																		551,945
Total			$	5,640,382																	$	5,542,919																	$	5,548,814																	$	5,505,311																	$	5,420,830
Taxable-equivalent net interest income / net interest spread									53,894						3.58		%										49,406						3.28		%										49,571						3.35		%										51,100						3.43		%										51,557						3.52		%
Taxable-equivalent net interest margin															4.12		%																3.87		%																3.90		%																4.00		%																4.11		%
Taxable-equivalent adjustment									(574)																		(575)																		(566)																		(569)																		(569)
Net interest income									$	53,320																	$	48,831																	$	49,005																	$	50,531																	$	50,988
Ratio of average interest-earning assets to average interest-bearing liabilities															129		%																129		%																128		%																129		%																129		%

11

---

NOTES:

(1) Yields and interest income on tax-exempt assets have been computed on a taxable-equivalent basis assuming a 21% tax rate.

(2) Average balance of investment securities is computed at fair value.

(3) Average balances include nonaccrual loans.

(4) Interest income on loans includes prepayment and late fees, where applicable.

(5) Interest income on loans includes accretion on purchase accounting marks of $3.9 million, $4.3 million, $4.2 million, $4.7 million and $5.3 million for the three months ended September 30, 2026, June 30, 2026, March 31, 2026, December 31, 2025 and September 30, 2025, respectively.

(6) Interest expense includes accelerated amortization of the of the fair value mark from the redeemed subordinated notes of $1.6 million for the three months ended June 30, 2026.

12

---

ANALYSIS OF NET INTEREST INCOME
Average Balances and Interest Rates, Taxable-Equivalent Basis (Unaudited)
(continued)
			Nine Months Ended
			September 30, 2026																		September 30, 2025
									Taxable-						Taxable-												Taxable-						Taxable-
			Average						Equivalent						Equivalent						Average						Equivalent						Equivalent
(In thousands)			Balance						Interest						Rate						Balance						Interest						Rate
Assets
Federal funds sold & interest-bearing bank balances			$	67,316					$	1,843					3.66		%				$	146,688					$	4,904					4.47		%
Investment securities (1)(2)			976,406						33,238						4.54						892,033						31,379						4.69
Loans (1)(3)(4)(5)			4,105,041						193,435						6.30						3,928,159						192,858						6.56
Total interest-earning assets			5,148,763						228,516						5.93						4,966,880						229,141						6.17
Other assets			428,944																		440,153
Total assets			$	5,577,707																	$	5,407,033
Liabilities and Shareholders' Equity
Interest-bearing demand deposits			$	2,568,637					41,105						2.14						$	2,462,336					42,181						2.29
Savings deposits			258,261						398						0.21						268,966						494						0.25
Time deposits			890,123						23,439						3.52						927,232						27,079						3.90
Total interest-bearing deposits			3,717,021						64,942						2.34						3,658,534						69,754						2.55
Securities sold under agreements to repurchase and federal funds purchased			12,667						132						1.39						26,623						297						1.49
FHLB advances and other borrowings			243,691						6,921						3.80						128,827						3,939						4.09
Subordinated notes and trust preferred debt (6)			27,196						3,651						17.95						68,799						4,223						8.21
Total interest-bearing liabilities			4,000,575						75,646						2.53						3,882,783						78,213						2.69
Noninterest-bearing demand deposits			883,735																		898,015
Other liabilities			84,466																		89,025
Total liabilities			4,968,776																		4,869,823
Shareholders' equity			608,931																		537,210
Total liabilities and shareholders' equity			$	5,577,707																	$	5,407,033
Taxable-equivalent net interest income / net interest spread									152,870						3.40		%										150,928						3.47		%
Taxable-equivalent net interest margin															3.97		%																4.06		%
Taxable-equivalent adjustment									(1,714)																		(1,667)
Net interest income									$	151,156																	$	149,261
Ratio of average interest-earning assets to average interest-bearing liabilities															129		%																128		%

13

---

NOTES TO ANALYSIS OF NET INTEREST INCOME:

(1) Yields and interest income on tax-exempt assets have been computed on a taxable-equivalent basis assuming a 21% tax rate.

(2) Average balance of investment securities is computed at fair value.

(3) Average balances include nonaccrual loans.

(4) Interest income on loans includes prepayment and late fees, where applicable.

(5) Interest income on loans includes accretion on purchase accounting marks of $12.4 million and $16.7 million for the nine months ended September 30, 2026 and 2025, respectively.

(6) Interest expense includes accelerated amortization of the of the fair value mark from the redeemed subordinated notes of $1.6 million for the nine months ended September 30, 2026.

14

---

ORRSTOWN FINANCIAL SERVICES, INC.
HISTORICAL TRENDS IN QUARTERLY FINANCIAL DATA (Unaudited)
(In thousands)			September 30, 2026						June 30, 2026						March 31, 2026						December 31, 2025						September 30, 2025
Profitability for the quarter:
Net interest income			$	53,320					$	48,831					$	49,005					$	50,531					$	50,988
Net provision for credit losses on loans and unfunded loan commitments			1,042						338						352						75						396
Noninterest income			13,378						13,836						15,577						14,392						13,382
Noninterest expenses			37,334						37,666						36,728						37,355						36,297
Income before income taxes			28,322						24,663						27,502						27,493						27,677
Income tax expense			5,507						3,505						5,693						6,002						5,812
Net income			$	22,815					$	21,158					$	21,809					$	21,491					$	21,865
Financial ratios:
Return on average assets (1)			1.60		%				1.53		%				1.59		%				1.55		%				1.60		%
Return on average equity (1)			14.62		%				13.96		%				14.76		%				14.73		%				15.72		%
Net interest margin (1)			4.12		%				3.87		%				3.90		%				4.00		%				4.11		%
Net interest margin, adjusted (1)(2)(3)			n/a						4.00		%				n/a						n/a						n/a
Efficiency ratio			56.0		%				60.1		%				56.9		%				57.5		%				56.4		%
Efficiency ratio, adjusted (2)(3)			n/a						58.6		%				n/a						n/a						n/a
Per share information:
Income per common share:
Basic			$	1.18					$	1.10					$	1.13					$	1.12					$	1.14
Diluted			1.17						1.09						1.12						1.11						1.13
Book value			30.77						31.60						30.76						30.32						29.33
Tangible book value(3)			25.96						26.71						25.76						25.21						24.12
Average tangible common equity(1)(3)			17.52						16.86						17.96						18.15						19.70
Cash dividends paid			0.30						0.30						0.30						0.27						0.27
Average basic shares			19,380						19,313						19,274						19,251						19,224
Average diluted shares			19,504						19,432						19,410						19,384						19,364
(1) Annualized.
(2) Ratio has been adjusted for accelerated amortization of the remaining fair value mark of $1.6 million from the redemption of the subordinated notes during the three months ended June 30, 2026.
(3) Non-GAAP based financial measure. Please refer to Appendix A - Supplemental Reporting of Non-GAAP Measures and GAAP to Non-GAAP Reconciliations for a discussion of our use of non-GAAP based financial measures, including tables reconciling GAAP and non-GAAP financial measures appearing herein.

15

---

ORRSTOWN FINANCIAL SERVICES, INC.
HISTORICAL TRENDS IN QUARTERLY FINANCIAL DATA (Unaudited)
(continued)
(In thousands)			September 30, 2026						June 30, 2026						March 31, 2026						December 31, 2025						September 30, 2025
Noninterest income:
Service charges			$	2,916					$	2,734					$	2,871					$	3,225					$	2,997
Interchange income			1,597						1,602						1,513						1,553						1,620
Swap fee income			436						651						1,339						1,112						816
Wealth management income			5,968						5,946						5,557						5,739						5,277
Mortgage banking activities			212						436						326						503						522
Income from life insurance			1,410						1,376						3,761						1,331						1,471
Other income			824						1,034						212						834						629
Investment securities gains (losses)			15						57						(2)						95						50
Total noninterest income			$	13,378					$	13,836					$	15,577					$	14,392					$	13,382
Noninterest expenses:
Salaries and employee benefits			$	22,400					$	22,229					$	21,157					$	21,980					$	21,439
Occupancy, furniture and equipment			4,109						3,887						4,221						4,017						4,075
Data processing			1,752						1,703						1,537						1,292						1,116
Advertising and bank promotions			423						1,126						683						561						154
FDIC insurance			627						634						549						683						652
Professional services			1,015						1,202						1,221						1,947						1,703
Taxes other than income			1,022						392						1,025						574						828
Intangible asset amortization			2,115						2,179						2,239						2,348						2,410
Other operating expenses			3,871						4,314						4,096						3,953						3,920
Total noninterest expenses			$	37,334					$	37,666					$	36,728					$	37,355					$	36,297

16

---

HISTORICAL TRENDS IN QUARTERLY FINANCIAL DATA (Unaudited)
(continued)
(In thousands)			September 30, 2026						June 30, 2026						March 31, 2026						December 31, 2025						September 30, 2025
Balance Sheet at quarter end:
Cash and cash equivalents			$	125,646					$	144,841					$	161,136					$	149,774					$	184,146
Restricted investments in bank stocks			32,514						27,429						23,984						26,717						24,111
Securities available for sale			919,448						949,281						947,018						952,740						890,357
Loans held for sale, at fair value			3,924						3,639						3,366						6,090						6,026
Loans:
Commercial real estate:
Owner occupied			680,146						679,295						645,026						644,713						629,481
Non-owner occupied			1,306,387						1,305,379						1,322,251						1,260,198						1,254,959
Multi-family			246,026						229,425						216,658						236,703						234,782
Non-owner occupied residential			145,716						150,917						151,560						155,749						163,138
Agricultural			91,094						97,729						114,409						121,417						118,596
Commercial and industrial			532,125						489,247						481,815						489,371						479,929
Acquisition and development:
1-4 family residential construction			54,370						39,344						46,355						41,489						41,141
Commercial and land development			178,823						198,399						198,957						198,234						195,158
Municipal			34,348						33,950						27,744						25,302						28,664
Total commercial loans			3,269,035						3,223,685						3,204,775						3,173,176						3,145,848
Residential mortgage:
First lien			518,321						501,306						484,022						478,870						476,006
Home equity – term			5,298						5,401						5,685						5,972						5,800
Home equity – lines of credit			376,096						344,495						327,141						321,438						311,458
Other - term(1)			20,424						20,929						22,442						22,906						23,737
Installment and other loans			19,199						17,215						17,254						18,331						16,887
Total loans			4,208,373						4,113,031						4,061,319						4,020,693						3,979,736
Allowance for credit losses			(46,775)						(46,632)						(47,463)						(47,681)						(48,105)
Net loans held for investment			4,161,598						4,066,399						4,013,856						3,973,012						3,931,631
Goodwill			69,751						69,751						69,751						69,751						69,751
Other intangible assets, net			31,457						33,572						35,751						37,990						40,338
Total assets			5,707,243						5,612,151						5,576,972						5,542,255						5,470,233
Total deposits			4,581,910						4,620,023						4,627,424						4,528,774						4,533,560
FHLB advances and other borrowings and Securities sold under agreements to repurchase			417,252						282,362						225,958						299,243						241,719
Subordinated notes and trust preferred debt			8,109						8,049						37,274						37,122						36,970
Total shareholders' equity			605,200						621,650						603,184						591,535						571,936
(1) Other - term includes property assessed clean energy ("PACE") loans.

17

---

HISTORICAL TRENDS IN QUARTERLY FINANCIAL DATA (Unaudited)
(continued)
			September 30, 2026						June 30, 2026						March 31, 2026						December 31, 2025						September 30, 2025
Capital and credit quality measures(1):
Total risk-based capital:
Orrstown Financial Services, Inc.			13.3		%				13.2		%				13.5		%				13.3		%				13.1		%
Orrstown Bank			13.2		%				13.1		%				13.6		%				13.3		%				12.9		%
Tier 1 risk-based capital:
Orrstown Financial Services, Inc.			12.3		%				12.2		%				12.0		%				11.7		%				11.3		%
Orrstown Bank			12.2		%				12.1		%				12.5		%				12.2		%				11.8		%
Tier 1 common equity risk-based capital:
Orrstown Financial Services, Inc.			12.1		%				12.0		%				11.8		%				11.5		%				11.1		%
Orrstown Bank			12.2		%				12.1		%				12.5		%				12.2		%				11.8		%
Tier 1 leverage capital:
Orrstown Financial Services, Inc.			10.2		%				10.1		%				9.7		%				9.5		%				9.3		%
Orrstown Bank			10.1		%				10.0		%				10.2		%				9.9		%				9.6		%
Average equity to average assets			10.98		%				10.97		%				10.80		%				10.51		%				10.18		%
Allowance for credit losses to total loans			1.11		%				1.13		%				1.17		%				1.19		%				1.21		%
Total nonaccrual loans to total loans			0.54		%				0.58		%				0.74		%				0.70		%				0.66		%
Nonperforming assets to total assets			0.40		%				0.44		%				0.56		%				0.51		%				0.48		%
Allowance for credit losses to nonaccrual loans			204		%				196		%				158		%				170		%				184		%
Other information:
Net charge-offs			$	983					$	1,169					$	946					$	499					$	189
Classified loans			45,201						49,190						57,584						58,351						64,089
Nonperforming and other risk assets:
Nonaccrual loans			22,919						23,751						30,025						28,031						26,191
Other real estate owned			—						1,055						1,055						—						—
Total nonperforming assets			22,919						24,806						31,080						28,031						26,191
Financial difficulty modifications still accruing			1,629						1,794						949						1,253						1,245
Loans past due 90 days or more and still accruing			591						853						443						1,040						497
Total nonperforming and other risk assets			$	25,139					$	27,453					$	32,472					$	30,324					$	27,933
(1) Capital ratios are estimated for the current period, subject to regulatory filings. The Company elected the three-year phase in option for the day-one impact of ASU 2016-13 for current expected credit losses ("CECL") to regulatory capital. Beginning in 2023, the Company adjusted retained earnings, allowance for credit losses includable in tier 2 capital and the deferred tax assets from temporary differences in risk weighted assets by the permitted percentage of the day-one impact from adopting the new CECL standard, which concluded at December 31, 2025. Starting with periods in 2026, the day-one impact of ASU 2016-13 was fully applied to the capital ratios.

18

---

Appendix A- Supplemental Reporting of Non-GAAP Measures and GAAP to Non-GAAP Reconciliations

Management believes providing certain other “non-GAAP” financial information will assist investors in their understanding of the effect on recent financial results from non-recurring charges.

As a result of acquisitions, the Company has intangible assets consisting of goodwill, core deposit and other intangible assets, which totaled $101.2 million and $107.7 million at September 30, 2026 and December 31, 2025, respectively. During the nine months ended September 30, 2025, the Company incurred $2.6 million in merger-related expenses, respectively. The Company did not incur merger-related or other non-recurring expenses during the three months ended September 30, 2026, June 30, 2026, March 31, 2026. December 31, 2025 and September 30, 2025.

On June 30, 2026, the Company redeemed the $31.0 million outstanding 4.50% fixed-to-floating rate subordinated notes assumed from Codorus Valley Bancorp, Inc. on July 1, 2024. During the nine months ended September 30, 2026, the Company amortized the remaining fair value mark of $1.6 million to interest expense as a result of the redemption, which reduced net interest margin.

Tangible book value per common share, tangible common equity, and the impact of the accelerated amortization of fair value marks on net interest margin and the efficiency ratio and merger-related expenses on net income and associated ratios, as used by the Company in this earnings release, are determined by methods other than in accordance with U.S. Generally Accepted Accounting Principles ("GAAP"). While we believe this information is a useful supplement to GAAP based measures presented in this earnings release, readers are cautioned that this non-GAAP disclosure has limitations as an analytical tool, should not be viewed as a substitute for financial measures determined in accordance with GAAP, and should not be considered in isolation or as a substitute for analysis of our results and financial condition as reported under GAAP, nor are such measures necessarily comparable to non-GAAP performance measures that may be presented by other companies. This supplemental presentation should not be construed as an inference that our future results will be unaffected by similar adjustments to be determined in accordance with GAAP.

The following tables present the computation of each non-GAAP based measure:

(In thousands)

Tangible Book Value per Common Share						September 30, 2026						June 30, 2026						March 31, 2026						December 31, 2025						September 30, 2025
Shareholders' equity (most directly comparable GAAP-based measure)						$	605,200					$	621,650					$	603,184					$	591,535					$	571,936
Less: Goodwill						69,751						69,751						69,751						69,751						69,751
Other intangible assets						31,457						33,572						35,751						37,990						40,338
Related tax effect						(6,606)						(7,050)						(7,508)						(7,978)						(8,471)
Tangible common equity (non-GAAP)						$	510,598					$	525,377					$	505,190					$	491,772					$	470,318
Common shares outstanding						19,671						19,670						19,611						19,507						19,501
Book value per share (most directly comparable GAAP-based measure)						$	30.77					$	31.60					$	30.76					$	30.32					$	29.33
Intangible assets per share						4.81						4.89						5.00						5.11						5.21
Tangible book value per share (non-GAAP)						$	25.96					$	26.71					$	25.76					$	25.21					$	24.12

19

---

Return on Average Tangible Common Equity						September 30, 2026						June 30, 2026						March 31, 2026						December 31, 2025						September 30, 2025
Net Income						$	22,815					$	21,158					$	21,809					$	21,491					$	21,865
Average shareholders' equity						$	619,147					$	608,099					$	599,330					$	578,859					$	551,945
Less: Average goodwill						69,751						69,751						69,751						69,751						69,751
Less: Average other intangible assets, gross						32,793						34,920						37,132						39,467						41,809
Average tangible equity						$	516,603					$	503,428					$	492,447					$	469,641					$	440,385
Return on average tangible equity (non-GAAP) (1)						17.52		%				16.86		%				17.96		%				18.15		%				19.70		%
(1) - Annualized

20

---

(In thousands)			Three Months Ended																														Nine Months Ended
Adjusted Ratios for Non-recurring Charges			September 30, 2026						June 30, 2026						March 31, 2026						December 31, 2025						September 30, 2025						September 30, 2026												September 30, 2025
Net income (A) - most directly comparable GAAP-based measure			$	22,815					$	21,158					$	21,809					$	21,491					$	21,865					$	65,782											$	59,364
Plus: Merger-related expenses (B)			—						—						—						—						—						—												2,617
Less: Related tax effect (C)			—						—						—						—						—						—												(589)
Adjusted net income (D=A+B-C) - Non-GAAP			$	22,815					$	21,158					$	21,809					$	21,491					$	21,865					$	65,782											$	61,392
Average assets (E)			$5,640,382						$5,542,919						$5,548,814						$5,505,311						$5,420,830						$5,577,707												$5,407,033
Return on average assets (= A / E) - most directly comparable GAAP-based measure (1)			1.60		%				1.53		%				1.59		%				1.55		%				1.60		%				1.58		%										1.47		%
Return on average assets, adjusted (= D / E) - Non-GAAP (1)			n/a						n/a						n/a						n/a						n/a						n/a												1.52		%
Average equity (F)			$	619,147					$	608,099					$	599,330					$	578,859					$	551,945					$	608,931											$	537,210
Return on average equity (= A / F) - most directly comparable GAAP-based measure (1)			14.62		%				13.96		%				14.76		%				14.73		%				15.72		%				14.44		%										14.77		%
Return on average equity, adjusted (= D / F) - Non-GAAP (1)			n/a						n/a						n/a						n/a						n/a						n/a												15.28		%
Weighted average shares - basic (G) - most directly comparable GAAP-based measure			19,380						19,313						19,274						19,251						19,224						19,323												19,185
Basic earnings (loss) per share (= A / G) - most directly comparable GAAP-based measure			$	1.18					$	1.10					$	1.13					$	1.12					$	1.14					$	3.40											$	3.09
Basic earnings per share, adjusted (= D / G) - Non-GAAP			n/a						n/a						n/a						n/a						n/a						n/a												$	3.20
Weighted average shares - diluted (H) - most directly comparable GAAP-based measure			19,504						19,432						19,410						19,384						19,364						19,449												19,345
Diluted earnings (loss) per share (= A / H) - most directly comparable GAAP-based measure			$	1.17					$	1.09					$	1.12					$	1.11					$	1.13					$	3.38											$	3.07
Diluted earnings per share, adjusted (= D / H) - Non-GAAP			n/a						n/a						n/a						n/a						n/a						n/a												$	3.17
continued

21

---

			Three Months Ended																														Nine Months Ended
			September 30, 2026						June 30, 2026						March 31, 2026						December 31, 2025						September 30, 2025						September 30, 2026												September 30, 2025
Noninterest expense (I) - most directly comparable GAAP-based measure			$	37,334					$	37,666					$	36,728					$	37,355					$	36,297					$	111,728											$	112,087
Less: Merger-related expenses (B)			—						—						—						—						—						—												(2,617)
Adjusted noninterest expense (J = I - B) - Non-GAAP			$	37,334					$	37,666					$	36,728					$	37,355					$	36,297					$	111,728											$	109,470
Net interest income (K)			$	53,320					$	48,831					$	49,005					$	50,531					$	50,988					$	151,156											$	149,261
Noninterest income (L)			13,378						13,836						15,577						14,392						13,382						42,791												37,921
Total operating income (M = K + L) - most directly comparable GAAP-based measure			$	66,698					$	62,667					$	64,582					$	64,923					$	64,370					$	193,947											$	187,182
Plus: Accelerated amortization of fair value mark on redeemed subordinated notes (N)			—						1,624						—						—						—						1,624												—
Adjusted total operating income (O = M + N) - Non-GAAP			$	66,698					$	64,291					$	64,582					$	64,923					$	64,370					$	195,571											$	187,182
Efficiency ratio (= I / M) - most directly comparable GAAP-based measure			56.0		%				60.1		%				56.9		%				57.5		%				56.4		%				57.6		%										59.9		%
Efficiency ratio, adjusted (= J / N) - Non-GAAP			n/a						58.6		%				n/a						n/a						n/a						57.1		%										58.5		%
(1) Annualized

22

---

			Nine Months Ended September 30, 2026
			Average Balance - most directly comparable GAAP-based measure						Taxable-Equivalent Interest - most directly comparable GAAP-based measure						Less: accelerated amortization on fair value mark from subordinated notes redemption						Adjusted Taxable-Equivalent Interest - Non-GAAP						Taxable-Equivalent Rate - most directly comparable GAAP-based measure						Adjusted Taxable-Equivalent Rate - Non-GAAP
Total interest-earning assets			$	5,148,763					$	228,516					$	—					$	228,516					5.93		%				5.93		%
Total interest-bearing liabilities			$	4,000,575					75,646						(1,624)						74,022						2.53		%				2.47		%
Taxable-equivalent net interest income / net interest spread									$	152,870					$	1,624					$	154,494					3.40		%				3.46		%
Taxable-equivalent net interest margin																											3.97		%				4.01		%

			Three Months Ended June 30, 2026
			Average Balance - most directly comparable GAAP-based measure						Taxable-Equivalent Interest - most directly comparable GAAP-based measure						Less: accelerated amortization on fair value mark from subordinated notes redemption						Adjusted Taxable-Equivalent Interest - Non-GAAP						Taxable-Equivalent Rate - most directly comparable GAAP-based measure						Adjusted Taxable-Equivalent Rate - Non-GAAP
Total interest-earning assets			$	5,117,006					$	75,277					$	—					$	75,277					5.90		%				5.90		%
Total interest-bearing liabilities			$	3,963,461					25,871						(1,624)						24,247						2.62		%				2.45		%
Taxable-equivalent net interest income / net interest spread									$	49,406					$	1,624					$	51,030					3.28		%				3.45		%
Taxable-equivalent net interest margin																											3.87		%				4.00		%

23

---

Appendix B- Investment Portfolio Concentrations

The following table summarizes the credit ratings and collateral associated with the Company's investment security portfolio, excluding equity securities, at September 30, 2026:

(In thousands)

Sector			Portfolio Mix						Amortized Book						Fair Value												AAA						AA						A						BBB						BB						NR						Collateral / Guarantee Type
Unsecured ABS			—		%				$	2,203					$	2,173											—		%				—		%				—		%				—		%				—		%				100		%				Unsecured Consumer Debt
Student Loan ABS			—						2,342						2,343												—						—						—						—						—						100						Seasoned Student Loans
Federal Family Education Loan ABS			7						64,907						64,722												4						74						—						9						13						—						Federal Family Education Loan (1)
PACE Loan ABS			—						1,450						1,274												100						—						—						—						—						—						PACE Loans (2)
Non-Agency CMBS			4						38,629						37,415												—						—						—						—						—						100
Non-Agency RMBS			4						39,198						37,370												94						6						—						—						—						—						Reverse Mortgages (3)
Municipal - General Obligation			10						98,818						86,644												17						78						5						—						—						—
Municipal - Revenue			12						118,983						100,673												—						75						19						—						—						6
SBA ReRemic (5)			—						1,105						1,094												—						100						—						—						—						—						SBA Guarantee (4)
Small Business Administration			—						2,433						2,488												—						100						—						—						—						—						SBA Guarantee (4)
Agency MBS			26						252,259						234,756												—						100						—						—						—						—						Residential Mortgages (4)
Agency CMO			35						346,837						333,056												—						100						—						—						—						—
U.S. Treasury securities			2						15,010						14,166												—						100						—						—						—						—						U.S. Government Guarantee (4)
Corporate bonds			—						957						961												—						—						—						100						—						—
			100		%				$	985,131					$	919,135											6		%				84		%				3		%				1		%				1		%				5		%
(1) 97% guaranteed by U.S. government
(2) PACE acronym represents Property Assessed Clean Energy loans
(3) Non-agency reverse mortgages with current structural credit enhancements
(4) Guaranteed by U.S. government or U.S. government agencies
(5) SBA ReRemic acronym represents Re-Securitization of Real Estate Mortgage Investment Conduits
Note: Ratings in table are the lowest of the six rating agencies (Standard & Poor's, Moody's, Fitch, Morningstar, DBRS and Kroll Bond Rating Agency). Standard & Poor's rates U.S. government obligations at AA+.

24

---

About the Company

With $5.7 billion in assets, Orrstown Financial Services, Inc. and its wholly-owned subsidiary, Orrstown Bank, provide a wide range of consumer and business financial services in Berks, Cumberland, Dauphin, Franklin, Lancaster, Perry and York Counties, Pennsylvania and Anne Arundel, Baltimore, Harford, Howard, and Washington Counties, Maryland, as well as Baltimore City, Maryland. The Company’s lending area also includes counties in Pennsylvania, Maryland, Delaware, Virginia and West Virginia within a 75-mile radius of the Company's executive and administrative offices as well as the District of Columbia. Orrstown Bank is an Equal Housing Lender and its deposits are insured up to the legal maximum by the FDIC. Orrstown Financial Services, Inc.’s common stock is traded on Nasdaq (ORRF). For more information about Orrstown Financial Services, Inc. and Orrstown Bank, visit www.orrstown.com.

Cautionary Note Regarding Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. Forward-looking statements reflect the current views of the Company's management with respect to, among other things, future events and the Company's financial performance. These statements are often, but not always, made through the use of words or phrases such as “may,” “should,” “could,” “predict,” “potential,” “believe,” “will likely result,” “expect,” “continue,” “will,” “anticipate,” “seek,” “estimate,” “intend,” “plan,” “project,” “forecast,” “goal,” “target,” “would” and “outlook,” or the negative variations of those words or other comparable words of a future or forward-looking nature. These forward-looking statements are not historical facts, and are based on current expectations, estimates, predictions or projections about events or the Company's industry, management’s beliefs and certain assumptions made by management, many of which, by their nature, are inherently uncertain and beyond the Company's control. Accordingly, the Company cautions you that any such forward-looking statements are not guarantees of future performance and are subject to risks, assumptions and uncertainties that are difficult to predict. Although the Company believes that the expectations reflected in these forward-looking statements are reasonable as of the date made, actual results may prove to be materially different from the results expressed or implied by the forward-looking statements and there can be no assurances that the Company will achieve the desired level of new business development and new loans, growth in the balance sheet and fee-based revenue lines of business, cost savings initiatives and continued reductions in risk assets or mitigation of losses in the future. Factors which could cause the actual results to differ from those expressed or implied by the forward-looking statements include, but are not limited to, the following: interest rate changes or volatility; general economic conditions (including inflation and concerns about liquidity) on a national basis or in the local markets in which the Company operates; ineffectiveness of the Company’s strategic growth plan due to changes in current or future market conditions; the effects of competition and how it may impact our community banking model, including industry consolidation and development of competing financial products and services; changes in consumer behavior due to changing political, business and economic conditions, or legislative or regulatory initiatives; changes in, and evolving interpretations of, existing and future laws and regulations; changes in credit quality; inability to raise capital, if necessary, under favorable conditions; volatility in the securities markets; the demand for our products and services; deteriorating economic conditions; geopolitical tensions; operational risks including, but not limited to, cybersecurity incidents, fraud, natural disasters and future pandemics; expenses associated with litigation and legal proceedings; and other risks and uncertainties, including those detailed in our Annual Report on Form 10-K for the year ended December 31, 2025 under the sections titled “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and in subsequent filings made with the Securities and Exchange Commission.

The foregoing list of factors is not exhaustive. If one or more events related to these or other risks or uncertainties materializes, or if the Company's underlying assumptions prove to be incorrect, actual results may differ materially from what the Company anticipates. Accordingly, you should not place undue reliance on any such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made, and the Company disclaims any obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise. New risks and uncertainties arise from time to time, and it is not possible for the Company to predict those events or how they may affect it. In addition, the Company cannot assess the impact of each factor on its business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. All forward-looking statements, expressed or implied, included in this press release are expressly qualified in their entirety by this cautionary statement. This cautionary statement should also be considered in connection with any subsequent written or oral forward-looking statements that the Company or persons acting on the Company's behalf may issue.

25

---

The review period for subsequent events extends up to and includes the filing date of a public company’s financial statements, when filed with the Securities and Exchange Commission. Accordingly, the consolidated financial information presented in this announcement is subject to change. Annualized, pro forma, projected and estimated numbers in this document are used for illustrative purposes only and are not forecasts and may not reflect actual results.

####

26