# EDGAR Filing Document

**Accession Number:** 0000715579
**File Stem:** 0001628280-25-035841
**Filing Date:** 2025-7
**Character Count:** 45332
**Document Hash:** 1e70e7ffb9365a4faf2237ec9f0d0000
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-25-035841.hdr.sgml**: 20250724

**ACCESSION NUMBER**: 0001628280-25-035841

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 25

**CONFORMED PERIOD OF REPORT**: 20250724

**ITEM INFORMATION**: Results of Operations and Financial Condition

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250724

**DATE AS OF CHANGE**: 20250724

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ACNB CORP
- **CENTRAL INDEX KEY:** 0000715579
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 232233457
- **STATE OF INCORPORATION:** PA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35015
- **FILM NUMBER:** 251144668

**BUSINESS ADDRESS:**
- **STREET 1:** 16 LINCOLN SQUARE
- **STREET 2:** P O BOX 3129
- **CITY:** GETTYSBURG
- **STATE:** PA
- **ZIP:** 17325
- **BUSINESS PHONE:** 7173343161

**MAIL ADDRESS:**
- **STREET 1:** P O BOX 3129
- **STREET 2:** 16 LINCOLN SQUARE
- **CITY:** GETTYSBURG
- **STATE:** PA
- **ZIP:** 17325

?xml version='1.0' encoding='ASCII'? acnb-20250724

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

______________

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d)**

**of the Securities Exchange Act of 1934**

______________

**Date of Report (Date of earliest event reported): July 24, 2025**

**<u>ACNB Corporation</u>**

(Exact name of Registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Pennsylvania** | **1-35015** | **23-2233457** |
| (State or other<br>jurisdiction of<br>incorporation) | (Commission<br>File Number) | (IRS Employer<br>Identification No.) |

---

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| | |
|:---|:---|
| **16 Lincoln Square, Gettysburg, PA** | **17325** |
| (Address of principal executive offices) | (Zip Code) |

---

---

| | |
|:---|:---|
| | **717.334.3161** |
| (Registrant's telephone number, including area code) | (Registrant's telephone number, including area code) |

---

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions (*see* General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the Registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Emerging growth company ☐

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

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title Of Each Class** | **Trading Symbol(s)** | **Name Of Each Exchange On Which Registered** |
| Common Stock, $2.50 par value per share | ACNB | The NASDAQ Stock Market, LLC |

---

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**CURRENT REPORT ON FORM 8-K**

**<u>ITEM 2.02</u>**&nbsp;&nbsp;&nbsp;&nbsp;**<u>Results of Operations and Financial Condition</u>**

ACNB Corporation released financial results for the three months ended June 30, 2025, as more fully described in the attached press release dated July 24, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information furnished under this Item 2.02 of this Current Report on Form 8-K shall not be deemed to be filed for purposes of the Securities Exchange Act of 1934.

**<u>ITEM 9.01</u>&nbsp;&nbsp;&nbsp;&nbsp;<u>Financial Statements and Exhibits</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Exhibits.

<u>Exhibit Number</u>&nbsp;&nbsp;&nbsp;&nbsp;<u>Description</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[99.1](pressrelease2025-q2finan.htm)</u>&nbsp;&nbsp;&nbsp;&nbsp;<u>[ACNB Corporation Press Release dated July 24, 2025.](pressrelease2025-q2finan.htm)</u>

104&nbsp;&nbsp;&nbsp;&nbsp;Cover Page Interactive Data File (embedded within the Inline XBRL document).

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Current Report on Form 8-K to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | | |
|:---|:---|:---|
| | | **ACNB CORPORATION** (Registrant) |
| Dated: | July 24, 2025 | /s/ Kevin J. Hayes |
| | | Kevin J. Hayes |
| | | Senior Vice President/ |
| | | General Counsel, Secretary & Chief Governance Officer |

---

## Exhibit 99.1

![](pressrelease2025-q2finan001.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;PRESS RELEASE FOR IMMEDIATE RELEASE Contact: Jason H. Weber EVP/Treasurer & Chief Financial Officer 717.339.5090 jweber@acnb.com ACNB CORPORATION REPORTS 2025 SECOND QUARTER FINANCIAL RESULTS GETTYSBURG, PA, July 24, 2025 --- ACNB Corporation (NASDAQ: ACNB) ("ACNB" or the "Corporation"), financial holding company for ACNB Bank and ACNB Insurance Services, Inc., announced net income of $11.6 million, or $1.11 diluted earnings per share, for the three months ended June 30, 2025 compared to net income of $11.3 million, or $1.32 diluted earnings per share, for the three months ended June 30, 2024 and compared to net loss of $272 thousand, or $0.03 diluted loss per share, for the three months ended March 31, 2025. Financial results for the three months ended March 31, 2025 were impacted by two discrete items that were related to the acquisition of Traditions Bancorp, Inc. ("Traditions") ("Acquisition"): a provision for credit losses on non-purchase credit deteriorated ("PCD") loans of $4.2 million, net of taxes, and merger- related expenses, net of taxes, totaling $6.2 million. 2025 Second Quarter Highlights • Fully taxable equivalent ("FTE") net interest margin was 4.21% for the three months ended June 30, 2025 compared to 4.07% for the three months ended March 31, 2025 and 3.82% for the three months ended June 30, 2024. • Return on average assets was 1.43% and return on average equity was 11.96% for the three months ended June 30, 2025. • Total loans were $2.34 billion at June 30, 2025, an increase of $19.6 million, or 0.8%, from March 31, 2025, or 3.4% on an annualized basis. • Tangible common equity to tangible assets ratio1 of 9.65% at June 30, 2025 compared to 9.33% at March 31, 2025 and 9.84% at June 30, 2024. The net unrealized loss on the available for sale securities portfolio was $36.2 million at June 30, 2025 compared to a net unrealized loss of $39.7 million at March 31, 2025 and a net unrealized loss of $52.7 million at June 30, 2024. Exhibit 99.1 1 Non-GAAP financial measure. Please refer to the calculation on the page titled "Non-GAAP Reconciliation" at the end of this document.

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![](pressrelease2025-q2finan002.jpg)

• As announced on Form 8-K on July 23, 2025, the Board of Directors approved and declared a regular quarterly cash dividend of $0.34 per share of ACNB Corporation common stock for the second quarter, reflecting a $0.02, or 6.3%, increase over the same period of 2024. • ACNB repurchased 71,592 shares of ACNB common stock in open market transactions during the three months ended June 30, 2025. On June 18, 2025, the Corporation announced that the Board of Directors approved a plan to repurchase, in open market transactions at prevailing market prices, up to 314,000 shares or approximately 3.0%, of the outstanding shares of ACNB's common stock. "We are pleased to share strong results for the second quarter of 2025 which reflect our first full quarter of combined operations including Traditions Bank, a division of ACNB Bank. After completing the acquisition in early February of this year, we are excited to share that we have successfully completed our system conversion enabling all ACNB Bank customers to bank at any convenient location." said James P. Helt, ACNB Corporation President and Chief Executive Officer. "Our financial results reflect our continued commitment to our community banking business model and to generating long term shareholder value. The quarter was represented by strong profitability, an increase in quarter over quarter net loan growth, stable asset quality and an active capital management strategy supported by a $0.34 second quarter dividend payment and continued open market share repurchases." Mr. Helt continued, "As we look to the remainder of the year, we are focused on managing through the uncertain national economic challenges by continuing to diversify our revenue streams with ACNB Insurance Services, our Wealth Management teams and Traditions Mortgage. We are optimistic that our strong capital position, ample liquidity, superior asset quality metrics and our focus on profitability will enable us to deliver on our commitment to our many different stakeholders." ACNB's financial results for any periods ended prior to February 1, 2025 reflect ACNB on a standalone basis. As a result, ACNB's financial results for the three months ended June 30, 2025 may not be directly comparable to prior reported periods. Net Interest Income and Margin Net interest income for the three months ended June 30, 2025 totaled $31.0 million, an increase of $10.0 million from the three months ended June 30, 2024 and an increase of $3.9 million from the three months ended March 31, 2025. The increases were driven primarily by the Acquisition. The FTE net interest margin for the three months ended June 30, 2025 was 4.21%, a 39 basis points increase from the three months ended June 30, 2024 and a 14 basis points increase from the three months ended March 31, 2025. The accretion impact of acquisition accounting adjustments on loans and deposits from the Acquisition was $2.2 million and $1.5 million for the three months ended June 30, 2025 and the three months ended March 31, 2025, respectively. The following discussion of increases in average balances and yields compared to the previous periods were driven primarily by the Acquisition. For the three months ended June 30, 2025, total average loans increased $678.7 million and $217.1 million compared to the three months ended June 30, 2024 and the three months ended March 31, 2025, respectively. The yield on total loans was 6.29% for the three months ended June 30, 2025, an increase of 76 basis points compared to the three months ended June 30, 2024 and an increase of 21 basis points from the three months ended March 31, 2025. For the three months ended June 30, 2025, total average interest- bearing deposits increased $613.8 million from the three months ended June 30, 2024 and increased $203.0 million from the three months ended March 31, 2025. The average rate paid on interest-bearing deposits was 1.49% for the three months ended June 30, 2025, an increase of 70 basis points from the three months ended ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 2 of 12

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![](pressrelease2025-q2finan003.jpg)

June 30, 2024 and an increase of 11 basis points from the three months ended March 31, 2025. For the three months ended June 30, 2025, total average noninterest-bearing demand deposits increased $78.0 million from the three months ended June 30, 2024 and increased $50.4 million from the three months ended March 31, 2025. Noninterest Income Noninterest income for the three months ended June 30, 2025 was $8.7 million, an increase of $2.3 million from the three months ended June 30, 2024 and an increase of $1.5 million from the three months ended March 31, 2025. Gain from mortgage loans held for sale for the three months ended June 30, 2025 was $1.6 million, an increase of $1.5 million from the three months ended June 30, 2024 and an increase of $720 thousand from the three months ended March 31, 2025. Insurance commissions for the three months ended June 30, 2025 were $2.9 million, an increase of $161 thousand from the three months ended June 30, 2024 driven primarily by timing of policy renewals and new business and an increase of $761 thousand from the three months ended March 31, 2025 driven primarily by seasonally stronger policy renewals and an increase in contingent commission income during the three months ended June 30, 2025 for contingent commissions earned in 2024. Service charges on deposits were $1.2 million, an increase of $158 thousand from the three months ended June 30, 2024 and an increase of $85 thousand from the three months ended March 31, 2025 driven primarily by the Acquisition. Noninterest Expense Noninterest expense for the three months ended June 30, 2025 increased $9.0 million from the three months ended June 30, 2024 and decreased $4.0 million from the three months ended March 31, 2025. Merger-related expenses totaled $1.9 million for the three months ended June 30, 2025 compared to $23 thousand for the three months ended June 30, 2024 and $8.0 million for the three months ended March 31, 2025. Salaries and employee benefits expense increased $3.3 million during the three months ended June 30, 2025 compared to the three months ended June 30, 2024 and increased $832 thousand compared to three months ended March 31, 2025 driven primarily by an increased number of employees attributable to the Acquisition, merit increases and higher mortgage commissions. Net occupancy increased $286 thousand for the three months ended June 30, 2025 compared to the three months ended June 30, 2024 driven primarily by the Acquisition and decreased $165 thousand compared to the three months ended March 31, 2025 driven primarily by lower snow removal costs. Equipment expense increased $969 thousand for the three months ended June 30, 2025 compared to the three months ended June 30, 2024 and increased $259 thousand compared to the three months ended March 31, 2025 driven primarily by the Acquisition and the implementation of new additional products into our core processing system. Other tax decreased $136 thousand for the three months ended June 30, 2025 compared to the three months ended June 30, 2024 and decreased $307 thousand compared to the three months ended March 31, 2025 driven primarily by earned income tax credits recognized in the period. Intangible assets amortization increased $826 thousand during the three months ended June 30, 2025 compared to the three months ended June 30, 2024 and increased $284 thousand compared to the three months ended March 31, 2025 driven by the Acquisition. Other increased $1.5 million for the three months ended June 30, 2025 compared to the three months ended June 30, 2024 and increased $1.0 million compared to the three months ended March 31, 2025 driven primarily by the Acquisition, earned income tax related donations, and higher internet banking services. ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 3 of 12

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![](pressrelease2025-q2finan004.jpg)

Loans and Asset Quality Total loans outstanding were $2.34 billion at June 30, 2025, an increase of $19.6 million from March 31, 2025 and an increase of $662.2 million from June 30, 2024. The growth from March 31, 2025 was spread across real estate construction, commercial and industrial, home equity lines of credit and residential mortgage. The increase compared to June 30, 2024 was spread across all loan categories and was driven primarily by the Acquisition. The allowance for credit losses was $24.4 million at June 30, 2025, a decrease of $293 thousand compared to March 31, 2025 and an increase of $7.2 million compared to June 30, 2024. The decrease compared to March 31, 2025 was driven primarily by the incorporation of post-COVID lower credit loss history in the bank's allowance for credit losses model. The increase compared to June 30, 2024 was driven primarily by the Acquisition. The allowance for unfunded commitments was $1.5 million at June 30, 2025, a decrease of $354 thousand compared to March 31, 2025 and an increase of $219 thousand compared to June 30, 2024. The decrease compared to March 31, 2025 was driven primarily by the incorporation of post-COVID lower credit loss history in the bank's allowance for unfunded commitments model and lower commitments. The increase compared to June 30, 2024 was driven primarily by the Acquisition. Non-performing loans were $10.1 million, or 0.43%, of total loans, net of unearned income, at June 30, 2025 compared to $10.0 million, or 0.43%, of total loans at March 31, 2025 and $3.1 million, or 0.19%, of total loans at June 30, 2024. The increase in non-performing loans at June 30, 2025 compared to June 30, 2024 was driven primarily by one long-standing commercial relationship in the healthcare industry, comprised of both owner-occupied commercial real estate and commercial and industrial loans, that moved into non-performing loan status during 2024 and by the Acquisition. Annualized net charge-offs for the three months ended June 30, 2025 were 0.01% of total average loans compared to 0.01% for the three months ended March 31, 2025 and 0.00% for the three months ended June 30, 2024. Deposits and Borrowings Deposits totaled $2.52 billion at June 30, 2025, a decrease of $15.5 million from March 31, 2025 and an increase of $686.0 million from June 30, 2024. Included in total deposits at June 30, 2025 were $568.3 million of noninterest-bearing deposits, which increased $5.6 million and $88.6 million from March 31, 2025 and June 30, 2024, respectively. Total interest-bearing deposits were $1.96 billion at June 30, 2025 a decrease of $21.1 million from March 31, 2025 and an increase of $597.4 million from June 30, 2024. The decrease from March 31, 2025 was driven primarily by the withdrawal of a significant 1031 Exchange deposit held on behalf of a commercial customer. Time deposits, included in interest-bearing deposits, increased $3.3 million and $225.0 million since March 31, 2025 and June 30, 2024, respectively. In June 2025, ACNB Bank issued $20.0 million in brokered time deposits to partially offset the 1031 Exchange deposit withdrawal and the maturity of a $5.0 million brokered deposit during the quarter. The overall increase in total deposits compared to June 30, 2024 was driven primarily by the Acquisition. Total borrowings were $298.4 million at June 30, 2025, a decrease of $1.1 million and $5.9 million compared to March 31, 2025 and June 30, 2024, respectively. Stockholders' Equity Total stockholders' equity was $395.2 million at June 30, 2025 compared to $386.9 million at March 31, 2025 and $289.3 million at June 30, 2024. The increase at June 30, 2025 compared to March 31, 2025 was driven primarily by net income of $11.6 million slightly offset by dividends paid of $3.5 million and common stock repurchased of $3.1 million for the three months ended June 30, 2025. The increase at June 30, 2025 compared to June 30, 2024 was driven primarily by the common stock equity issued in the Acquisition. ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 4 of 12

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![](pressrelease2025-q2finan005.jpg)

Tangible book value1 per share was $29.30, $28.23 and $27.82 at June 30, 2025, March 31, 2025 and June 30, 2024, respectively. ACNB repurchased 71,592 shares of ACNB common stock in open market transactions during the three months ended June 30, 2025. On June 18, 2025, the Corporation announced that the Board of Directors approved a plan to repurchase, in open market transactions at prevailing market prices, up to 314,000 shares or approximately 3.0%, of the outstanding shares of ACNB's common stock. This new common stock open market repurchase plan replaces and supersedes any and all earlier announced repurchase plans. There were no shares repurchased under this plan during the three months ended June 30, 2025. About ACNB Corporation ACNB Corporation, headquartered in Gettysburg, PA, is the independent $3.26 billion financial holding company for the wholly-owned subsidiaries of ACNB Bank, Gettysburg, PA, including its operating divisions Traditions Bank and Traditions Mortgage, and ACNB Insurance Services, Inc., Westminster, MD. Originally founded in 1857, ACNB Bank serves its marketplace with banking and wealth management services, including trust and retail brokerage, via a network of 33 community banking offices and one loan office located in the Pennsylvania counties of Adams, Cumberland, Franklin, Lancaster and York, and the Maryland counties of Baltimore, Carroll and Frederick. ACNB Insurance Services, Inc. is a full-service insurance agency with licenses in 46 states. The agency offers a broad range of property, casualty, health, life and disability insurance serving personal and commercial clients through office locations in Westminster, MD and Gettysburg, PA. For more information regarding ACNB Corporation and its subsidiaries, please visit investor.acnb.com. # # # SAFE HARBOR AND FORWARD-LOOKING STATEMENTS - Should there be a material subsequent event prior to the filing of the Quarterly Report on Form 10-Q with the Securities and Exchange Commission, the financial information reported in this press release is subject to change to reflect the subsequent event. In addition to historical information, this press release may contain forward-looking statements. Examples of forward-looking statements include, but are not limited to, (a) projections or statements regarding future earnings, expenses, net interest income, other income, earnings or loss per share, asset mix and quality, growth prospects, capital structure, and other financial terms, (b) statements of plans and objectives of Management or the Board of Directors, and (c) statements of assumptions, such as economic conditions in the Corporation's market areas. Such forward-looking statements can be identified by the use of forward-looking terminology such as "believes", "expects", "may", "intends", "will", "should", "anticipates", or the negative of any of the foregoing or other variations thereon or comparable terminology, or by discussion of strategy. Forward-looking statements are subject to certain risks and uncertainties such as national, regional and local economic conditions, competitive factors, and regulatory limitations. Actual results may differ materially from those projected in the forward-looking statements. Such risks, uncertainties, and other factors that could cause actual results and experience to differ from those projected include, but are not limited to, the following: short-term and long-term effects of inflation and rising costs on the Corporation, customers and economy; banking instability caused by bank failures and financial uncertainty of various banks which may adversely impact the Corporation and its securities and loan values, deposit stability, capital adequacy, financial condition, operations, liquidity, and results of operations; effects of governmental and fiscal policies, as well as legislative and regulatory changes; effects of new laws and regulations (including laws and regulations concerning taxes, banking, securities and insurance) and their application with which the Corporation and its subsidiaries must comply; impacts of the capital and liquidity requirements of the Basel III standards; effects of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Financial Accounting Standards Board and other accounting standard setters; ineffectiveness of the business strategy due to changes in current or future market conditions; future actions or inactions of the United States government, including the effects of short-term and long-term federal budget and tax negotiations and a failure to increase the government debt limit or a prolonged shutdown of the federal government; effects of economic conditions particularly with regard to the negative impact of any pandemic, epidemic or health-related crisis and the responses thereto on the operations of the Corporation and current customers, specifically the effect of the economy on loan customers' ability to repay loans; effects of competition, and of changes in laws and regulations on competition, including industry consolidation and development of competing financial products and services; inflation, securities market and monetary fluctuations; risks of changes in interest rates on the level and composition of deposits, loan demand, and the values of loan collateral, securities, and interest rate protection agreements, as well as interest rate risks; difficulties in acquisitions and integrating and operating acquired business operations, including information technology difficulties; challenges in establishing and maintaining operations in new markets; effects of technology changes; effects of general economic conditions and more specifically in the Corporation's market areas; failure of assumptions underlying the establishment of reserves for credit losses and estimations of values of collateral and various financial assets and liabilities; acts of war or terrorism or geopolitical instability; disruption of credit and equity markets; ability to manage current levels of impaired assets; loss of certain key officers; ability to ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 5 of 12 1 Non-GAAP financial measure. Please refer to the calculation on the page titled "Non-GAAP Reconciliation" at the end of this document.

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![](pressrelease2025-q2finan006.jpg)

maintain the value and image of the Corporation's brand and protect the Corporation's intellectual property rights; continued relationships with major customers; and, potential impacts to the Corporation from continually evolving cybersecurity and other technological risks and attacks, including additional costs, reputational damage, regulatory penalties, and financial losses. Management considers subsequent events occurring after the balance sheet date for matters which may require adjustment to, or disclosure in, the consolidated financial statements. The review period for subsequent events extends up to and including the filing date of the Corporation's consolidated financial statements when filed with the SEC. Accordingly, the financial information in this announcement is subject to change. We caution readers not to place undue reliance on these forward-looking statements. They only reflect Management's analysis as of this date. The Corporation does not revise or update these forward-looking statements to reflect events or changed circumstances. Please carefully review the risk factors described in other documents the Corporation files from time to time with the SEC, including the Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q. Please also carefully review any Current Reports on Form 8-K filed by the Corporation with the SEC. ACNB #2025-10 July 24, 2025 ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 6 of 12

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ACNB Corporation Financial Highlights Selected Financial Data by Respective Quarter End (Unaudited) (Dollars in thousands, except per share data) June 30, 2025 March 31, 2025 December 31, 2024 September 30, 2024 June 30, 2024 BALANCE SHEET DATA Total Assets $3,259,528 $3,270,041 $2,394,830 $2,420,914 $2,457,753 Investment securities 520,758 521,306 459,472 483,604 483,868 Total loans, net of unearned income 2,341,816 2,322,209 1,682,910 1,677,112 1,679,600 Allowance for credit losses (24,353) (24,646) (17,280) (17,214) (17,162) Deposits 2,524,541 2,540,009 1,792,501 1,791,317 1,838,588 Allowance for unfunded commitments 1,529 1,883 1,394 1,349 1,310 Borrowings 298,395 299,531 271,159 293,091 304,286 Stockholders' equity 395,151 386,883 303,273 306,755 289,331 INCOME STATEMENT DATA Interest and dividend income $41,576 $36,290 $27,381 $27,241 $26,869 Interest expense 10,564 9,200 6,269 6,299 5,905 Net interest income 31,012 27,090 21,112 20,942 20,964 (Reversal of) provision for credit losses (228) 5,968 249 81 (2,990) (Reversal of) provision for unfunded commitments (354) (480) 44 40 (259) Net interest income after (reversal of) provisions for credit losses and unfunded commitments 31,594 21,602 20,819 20,821 24,213 Noninterest income 8,682 7,184 5,803 6,833 6,427 Noninterest expenses 25,366 29,335 18,388 18,244 16,391 Income (loss) before income taxes 14,910 (549) 8,234 9,410 14,249 Income tax expense (benefit) 3,262 (277) 1,639 2,206 2,970 Net income (loss) $11,648 $(272) $6,595 $7,204 $11,279 PROFITABILITY RATIOS Total loans, net of unearned income to deposits 92.76 % 91.43 % 93.89 % 93.62 % 91.35 % Return on average assets (annualized) 1.43 (0.04) 1.08 1.17 1.86 Return on average equity (annualized) 11.96 (0.31) 8.57 9.63 16.12 Efficiency ratio1 56.21 60.13 63.83 60.56 58.61 FTE Net interest margin 4.21 4.07 3.81 3.77 3.82 Yield on average earning assets 5.64 5.45 4.93 4.90 4.89 Yield on investment securities 2.95 2.91 2.58 2.59 2.65 Yield on total loans 6.29 6.08 5.61 5.56 5.53 Cost of funds 1.50 1.45 1.19 1.19 1.12 PER SHARE DATA Diluted earnings (loss) per share $1.11 $(0.03) $0.77 $0.84 $1.32 Cash dividends paid per share 0.34 0.32 0.32 0.32 0.32 Tangible book value per share1 29.30 28.23 29.51 29.90 27.82 CAPITAL RATIOS2 Tier 1 leverage ratio 10.97 % 11.81 % 12.52 % 12.46 % 12.25 % Common equity tier 1 ratio 13.96 13.65 16.27 16.07 15.78 Tier 1 risk based capital ratio 14.17 13.86 16.56 16.36 16.07 Total risk based capital ratio 15.75 15.45 18.36 18.15 17.86 CREDIT QUALITY Net charge-offs to average loans outstanding (annualized) 0.01 % 0.01 % 0.04 % 0.01 % 0.00 % Total non-performing loans to total loans, net of unearned income3 0.43 0.43 0.40 0.39 0.19 Total non-performing assets to total assets4 0.31 0.32 0.30 0.29 0.14 Allowance for credit losses to total loans, net of unearned income 1.04 1.06 1.03 1.03 1.02 ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 7 of 12 1 Non-GAAP financial measure. Please refer to the calculation on the page titled "Non-GAAP Reconciliation" at the end of this document. 2 Regulatory capital ratios as of June 30, 2025 are preliminary. 3 Non-performing Loans consists of loans on nonaccrual status and loans greater than 90 days past due and still accruing interest. 4 Non-performing Assets consists of Non-performing Loans and Foreclosed assets held for resale.

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Consolidated Statements of Condition (Unaudited) (Dollars in thousands, except per share data) June 30, 2025 March 31, 2025 June 30, 2024 ASSETS Cash and due from banks $32,834 $23,422 $26,681 Interest-bearing deposits with banks 70,275 100,141 59,593 Total Cash and Cash Equivalents 103,109 123,563 86,274 Equity securities with readily determinable fair values 936 933 919 Investment securities available for sale, at estimated fair value 455,317 455,819 418,364 Investment securities held to maturity, at amortized cost (fair value $56,420, $56,219 and $57,026) 64,505 64,554 64,585 Loans held for sale 16,455 21,413 1,801 Total loans, net of unearned income 2,341,816 2,322,209 1,679,600 Less: Allowance for credit losses (24,353) (24,646) (17,162) Loans, net 2,317,463 2,297,563 1,662,438 Premises and equipment, net 31,581 32,398 25,760 Right of use asset 4,657 5,440 2,278 Restricted investment in bank stocks 13,533 13,560 11,853 Investment in bank-owned life insurance 96,104 98,814 80,841 Investments in low-income housing partnerships 814 846 940 Goodwill 64,449 64,449 44,185 Intangible assets, net 24,694 25,835 8,446 Foreclosed assets held for resale 32 438 406 Other assets 65,879 64,416 48,663 Total Assets $3,259,528 $3,270,041 $2,457,753 LIABILITIES AND STOCKHOLDERS' EQUITY Deposits: Noninterest-bearing $568,301 $562,700 $479,726 Interest-bearing 1,956,240 1,977,309 1,358,862 Total Deposits 2,524,541 2,540,009 1,838,588 Short-term borrowings 43,041 44,188 48,974 Long-term borrowings 255,354 255,343 255,312 Lease liability 4,946 5,790 2,278 Allowance for unfunded commitments 1,529 1,883 1,310 Other liabilities 34,966 35,945 21,960 Total Liabilities 2,864,377 2,883,158 2,168,422 Stockholders' Equity: Preferred Stock, $2.50 par value; 20,000,000 shares authorized; no shares outstanding at June 30, 2025, March 31, 2025 and June 30, 2024 — — — Common stock, $2.50 par value; 20,000,000 shares authorized; 11,017,121, 11,011,051, and 8,934,495 shares issued; 10,478,149, 10,543,671, and 8,545,629 shares outstanding at June 30, 2025, March 31, 2025 and June 30, 2024, respectively 27,539 27,521 22,330 Treasury stock, at cost; 538,972, 467,380, and 388,866 at June 30, 2025, March 31, 2025, and June 30, 2024, respectively (17,167) (14,309) (11,101) Additional paid-in capital 178,553 178,011 98,230 Retained earnings 239,077 230,978 226,271 Accumulated other comprehensive loss (32,851) (35,318) (46,399) Total Stockholders' Equity 395,151 386,883 289,331 Total Liabilities and Stockholders' Equity $3,259,528 $3,270,041 $2,457,753 ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 8 of 12

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Consolidated Income Statements (Unaudited) Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands, except per share data) 2025 2024 2025 2024 INTEREST AND DIVIDEND INCOME Loans, including fees Taxable $36,555 $22,675 $68,231 $44,145 Tax-exempt 317 313 609 632 Investment securities: Taxable 3,283 2,665 6,185 5,576 Tax-exempt 283 284 571 568 Dividends 307 248 647 488 Other 831 684 1,623 1,434 Total Interest and Dividend Income 41,576 26,869 77,866 52,843 INTEREST EXPENSE Deposits 7,284 2,643 13,280 4,803 Short-term borrowings 341 304 635 643 Long-term borrowings 2,939 2,958 5,849 5,840 Total Interest Expense 10,564 5,905 19,764 11,286 Net Interest Income 31,012 20,964 58,102 41,557 (Reversal of) provision for credit losses (228) (2,990) 5,740 (2,767) (Reversal of) provision for unfunded commitments (354) (259) (834) (410) Net Interest Income after (Reversal of) Provisions for Credit Losses and Unfunded Commitments 31,594 24,213 53,196 44,734 NONINTEREST INCOME Insurance commissions 2,908 2,747 5,055 4,862 Service charges on deposits 1,179 1,021 2,273 2,012 Wealth management 1,090 1,069 2,150 2,031 Gain from mortgage loans held for sale 1,575 34 2,430 82 ATM debit card charges 905 841 1,736 1,660 Earnings on investment in bank-owned life insurance 627 493 1,207 970 Gain on life insurance proceeds 31 — 285 — Net gains on sales or calls of investment securities 22 — 22 69 Net gains (losses) on equity securities 3 1 17 (9) Other 342 221 691 417 Total Noninterest Income 8,682 6,427 15,866 12,094 NONINTEREST EXPENSES Salaries and employee benefits 13,693 10,426 26,554 21,594 Equipment 2,539 1,570 4,819 3,299 Net occupancy 1,277 991 2,719 2,121 Professional services 743 529 1,320 1,145 FDIC and regulatory 435 348 836 723 Other tax 220 356 747 726 Intangible assets amortization 1,141 315 1,998 636 Merger-related 1,943 23 9,974 23 Other 3,375 1,833 5,734 3,786 Total Noninterest Expenses 25,366 16,391 54,701 34,053 Income Before Income Taxes 14,910 14,249 14,361 22,775 Income tax expense 3,262 2,970 2,985 4,728 Net Income $11,648 $11,279 $11,376 $18,047 PER SHARE DATA Basic earnings $1.11 $1.32 $1.12 $2.12 Diluted earnings $1.11 $1.32 $1.12 $2.12 Weighted average shares basic 10,451,469 8,502,268 10,130,666 8,497,686 Weighted average shares diluted 10,487,519 8,540,706 10,157,331 8,526,177 ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 9 of 12

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Average Balances, Income and Expenses, Yields and Rates Three months ended Three months ended Three months ended Three months ended Three months ended June 30, 2025 March 31, 2025 December 31, 2024 September 30, 2024 June 30, 2024 (Dollars in thousands) Average Balance Interest1 Yield/ Rate Average Balance Interest1 Yield/ Rate Average Balance Interest1 Yield/ Rate Average Balance Interest1 Yield/ Rate Average Balance Interest1 Yield/ Rate ASSETS Loans: Taxable $2,296,429 $36,555 6.38 % $2,080,231 $31,676 6.18 % $1,619,245 $23,294 5.72 % $1,618,879 $23,108 5.68 % $1,612,380 $22,675 5.66 % Tax-exempt 58,903 401 2.73 57,969 370 2.59 57,683 366 2.52 62,401 394 2.51 64,276 396 2.48 Total Loans2 2,355,332 36,956 6.29 2,138,200 32,046 6.08 1,676,928 23,660 5.61 1,681,280 23,502 5.56 1,676,656 23,071 5.53 Investment Securities: Taxable 482,933 3,590 2.98 447,986 3,242 2.93 431,338 2,786 2.57 441,135 2,868 2.59 442,390 2,913 2.65 Tax-exempt 54,261 358 2.65 54,659 365 2.71 54,453 359 2.62 54,549 359 2.62 54,644 359 2.64 Total Investments3 537,194 3,948 2.95 502,645 3,607 2.91 485,791 3,145 2.58 495,684 3,227 2.59 497,034 3,272 2.65 Interest-bearing deposits with banks 77,348 831 4.31 73,181 792 4.39 60,104 728 4.82 48,794 670 5.46 50,851 684 5.41 Total Earning Assets 2,969,874 41,735 5.64 2,714,026 36,445 5.45 2,222,823 27,533 4.93 2,225,758 27,399 4.90 2,224,541 27,027 4.89 Cash and due from banks 25,610 20,603 20,413 21,684 21,041 Premises and equipment 32,019 29,903 25,679 25,716 25,903 Other assets 255,624 224,522 181,180 184,105 187,937 Allowance for credit losses (24,615) (19,939) (17,153) (17,147) (20,124) Total Assets $3,258,512 $2,969,115 $2,432,942 $2,440,116 $2,439,298 LIABILITIES Interest-bearing demand deposits $612,812 $514 0.34 % $573,341 $524 0.37 % $519,833 $511 0.39 % $518,368 $552 0.42 % $513,163 $275 0.22 % Money markets 536,755 2,706 2.02 447,297 1,984 1.80 251,781 747 1.18 246,653 692 1.12 248,191 613 0.99 Savings deposits 342,327 27 0.03 331,103 27 0.03 315,512 34 0.04 318,291 26 0.03 327,274 30 0.04 Time deposits 473,589 4,037 3.42 410,749 3,461 3.42 268,559 1,987 2.94 258,053 1,842 2.84 263,045 1,725 2.64 Total Interest-Bearing Deposits 1,965,483 7,284 1.49 1,762,490 5,996 1.38 1,355,685 3,279 0.96 1,341,365 3,112 0.92 1,351,673 2,643 0.79 Short-term borrowings 44,515 341 3.07 38,721 294 3.08 23,087 12 0.21 38,666 204 2.10 37,256 304 3.28 Long-term borrowings 255,347 2,939 4.62 257,558 2,910 4.58 255,326 2,978 4.64 255,316 2,983 4.65 255,305 2,958 4.66 Total Borrowings 299,862 3,280 4.39 296,279 3,204 4.39 278,413 2,990 4.27 293,982 3,187 4.31 292,561 3,262 4.48 Total Interest-Bearing Liabilities 2,265,345 10,564 1.87 2,058,769 9,200 1.81 1,634,098 6,269 1.53 1,635,347 6,299 1.53 1,644,234 5,905 1.44 Noninterest-bearing demand deposits 563,321 512,966 464,949 477,350 485,351 Other liabilities 39,271 36,934 27,887 29,946 28,348 Stockholders' Equity 390,575 360,446 306,008 297,473 281,365 Total Liabilities and Stockholders' Equity $3,258,512 $2,969,115 $2,432,942 $2,440,116 $2,439,298 Taxable Equivalent Net Interest Income 31,171 27,245 21,264 21,100 21,122 Taxable Equivalent Adjustment (159) (155) (152) (158) (158) Net Interest Income $31,012 $27,090 $21,112 $20,942 $20,964 Cost of Funds 1.50% 1.45 % 1.19 % 1.19 % 1.12% FTE Net Interest Margin 4.21% 4.07 % 3.81 % 3.77 % 3.82% ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 10 of 12 1 Income on interest-earning assets has been computed on a fully taxable equivalent (FTE) basis using the 21% federal income tax statutory rate. 2 Average balances include non-accrual loans and are net of unearned income. 3 Average balances of investment securities is computed at fair value.

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Average Balances, Income and Expenses, Yields and Rates Six months ended June 30, 2025 Six months ended June 30, 2024 (Dollars in thousands) Average Balance Interest1 Yield/ Rate Average Balance Interest1 Yield/ Rate ASSETS Loans: Taxable $2,188,852 $68,231 6.29 % $1,592,745 $44,145 5.57 % Tax-exempt 58,438 771 2.66 65,050 800 2.47 Total Loans2 2,247,290 69,002 6.19 1,657,795 44,945 5.45 Investment Securities: Taxable 465,556 6,832 2.96 454,928 6,064 2.68 Tax-exempt 54,459 723 2.68 54,692 719 2.64 Total Investments3 520,015 7,555 2.93 509,620 6,783 2.68 Interest-bearing deposits with banks 75,276 1,623 4.35 52,504 1,434 5.49 Total Earning Assets 2,842,581 78,180 5.55 2,219,919 53,162 4.82 Cash and due from banks 23,120 20,790 Premises and equipment 30,967 26,051 Other assets 240,235 187,458 Allowance for credit losses (22,290) (20,044) Total Assets $3,114,613 $2,434,174 LIABILITIES Interest-bearing demand deposits $593,185 $1,038 0.35 % $512,932 $540 0.21 % Money markets 492,273 4,690 1.92 248,244 1,149 0.93 Savings deposits 336,746 54 0.03 331,244 58 0.04 Time deposits 442,343 7,498 3.42 253,763 3,056 2.42 Total Interest-Bearing Deposits 1,864,547 13,280 1.44 1,346,183 4,803 0.72 Short-term borrowings 41,634 635 3.08 42,170 643 3.07 Long-term borrowings 256,447 5,849 4.60 252,004 5,840 4.66 Total Borrowings 298,081 6,484 4.39 294,174 6,483 4.43 Total Interest-Bearing Liabilities 2,162,628 19,764 1.84 1,640,357 11,286 1.38 Noninterest-bearing demand deposits 538,282 485,999 Other liabilities 38,109 27,626 Stockholders' Equity 375,594 280,192 Total Liabilities and Stockholders' Equity $3,114,613 $2,434,174 Taxable Equivalent Net Interest Income 58,416 41,876 Taxable Equivalent Adjustment (314) (319) Net Interest Income $58,102 $41,557 Cost of Funds 1.48 % 1.07 % FTE Net Interest Margin 4.14 % 3.79 % ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 11 of 12 1 Income on interest-earning assets has been computed on a fully taxable equivalent basis (FTE) using the 21% federal income tax statutory rate. 2 Average balances include non-accrual loans and are net of unearned income. 3 Average balances of investment securities is computed at fair value.

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Non-GAAP Reconciliation Note: The Corporation has presented the following non-GAAP financial measures because it believes that these measures provide useful and comparative information to assess trends in the Corporation's results of operations and financial condition. These non-GAAP financial measures are frequently used by securities analysts, investors and other interested parties in the evaluation of companies in the Corporation's industry. Investors should recognize that the Corporation's presentation of these non- GAAP financial measures might not be comparable to similarly-titled measures of other corporations. These non-GAAP financial measures should not be considered a substitute for GAAP basis measures, and the Corporation strongly encourages a review of its condensed consolidated financial statements in their entirety. Tangible book value per share Stockholders' equity $395,151 $386,883 $303,273 $306,755 $289,331 Less: Goodwill and intangible assets (89,143) (90,284) (52,023) (52,327) (52,631) Tangible common stockholders' equity (numerator) $306,008 $296,599 $251,250 $254,428 $236,700 Shares outstanding, less unvested shares, end of period (denominator) 10,442,269 10,506,822 8,515,347 8,510,187 8,507,191 Tangible book value per share $29.30 $28.23 $29.51 $29.90 $27.82 Tangible common equity to tangible assets (TCE/TA Ratio) Tangible common stockholders' equity (numerator) $306,008 $296,599 $251,250 $254,428 $236,700 Total assets $3,259,528 $3,270,041 $2,394,830 $2,420,914 $2,457,753 Less: Goodwill and intangible assets (89,143) (90,284) (52,023) (52,327) (52,631) Total tangible assets (denominator) $3,170,385 $3,179,757 $2,342,807 $2,368,587 $2,405,122 Tangible common equity to tangible assets 9.65 % 9.33 % 10.72 % 10.74 % 9.84 % Efficiency Ratio Noninterest expense $25,366 $29,335 $18,388 $18,244 $16,391 Less: Intangible amortization 1,141 857 304 304 315 Less: Merger-related expense 1,943 8,031 885 1,137 23 Noninterest expense (numerator) $22,282 $20,447 $17,199 $16,803 $16,053 Net interest income $31,012 $27,090 $21,112 $20,942 $20,964 Plus: Total noninterest income 8,682 7,184 5,803 6,833 6,427 Less: Gain on life insurance proceeds 31 254 — — — Less: Net gains on sales or calls of securities 22 — — — — Less: Net gains (losses) on equity securities 3 14 (28) 28 1 Total revenue (denominator) $39,638 $34,006 $26,943 $27,747 $27,390 Efficiency ratio 56.21 % 60.13 % 63.83 % 60.56 % 58.61 % Three Months Ended (Dollars in thousands, except per share data) June 30, 2025 March 31, 2025 December 31, 2024 September 30, 2024 June 30, 2024 ACNB Corporation Press Release/2025 Second Quarter Financial Results July 24, 2025 Page 12 of 12

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