ACNB

SEC source: 0001628280-26-018487 · wk-form4_1773761907.xml · nonDerivative · entry 1

Seibel Douglas A · CIK 0001708277 · ACNB Bank EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,357.7481

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: One-third (1/3) of this Variable Equity Award, granted in the form of restricted stock under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, is 100% vested as of the Grant Date of March 13, 2026, with the next one-third (1/3) 100% vested as of January 1, 2027, and the final one-third (1/3) 100% vested as of January 1, 2028

SEC source: 0001628280-26-018485 · wk-form4_1773761896.xml · nonDerivative · entry 2

Weber Jason H · CIK 0001910158 · EVP, Treasurer & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,206.5835

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F3 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability by withholding of securities, on the first one-third (1/3) vested as of the Grant Date of March 13, 2026, in accordance with SEC Rule 16b-1. For clarification, the executive did not sell the shares.

SEC source: 0001628280-26-018485 · wk-form4_1773761896.xml · nonDerivative · entry 1

Weber Jason H · CIK 0001910158 · EVP, Treasurer & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,536.3239

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: One-third (1/3) of this Variable Equity Award, granted in the form of restricted stock under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, is 100% vested as of the Grant Date of March 13, 2026, with the next one-third (1/3) 100% vested as of January 1, 2027, and the final one-third (1/3) 100% vested as of January 1, 2028.

SEC source: 0001628280-26-018484 · wk-form4_1773761891.xml · nonDerivative · entry 2

HELT JAMES · CIK 0001225042 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,711.9842

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F3 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability by withholding of securities, on the first one-third (1/3) vested as of the Grant Date of March 13, 2026, in accordance with SEC Rule 16b-1. For clarification, the executive did not sell the shares.

SEC source: 0001628280-26-018484 · wk-form4_1773761891.xml · nonDerivative · entry 1

HELT JAMES · CIK 0001225042 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,511.5495

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: One-third (1/3) of this Variable Equity Award, granted in the form of restricted stock under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, is 100% vested as of the Grant Date of March 13, 2026, with the next one-third (1/3) 100% vested as of January 1, 2027, and the final one-third (1/3) 100% vested as of January 1, 2028.

SEC source: 0001628280-26-005304 · wk-form4_1770220195.xml · nonDerivative · entry 1

Hayes Kevin J · CIK 0001972468 · SVP/Secretary & Gen. Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,631.9585

SEC source: 0001628280-26-003626 · wk-form4_1769549326.xml · nonDerivative · entry 1

FULK BRETT D · CIK 0001224269 · ACNB Bank EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,047.5187

SEC source: 0001628280-26-000303 · wk-form4_1767638211.xml · nonDerivative · entry 1

HELT JAMES · CIK 0001225042 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,236.0197

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability on restricted shares previously awarded on March 15, 2024 and March 14, 2025, under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, that vested on January 1, 2026, in accordance with SEC Rule 16b-3. For clarification, the executive did not sell the shares.

SEC source: 0001628280-26-000302 · wk-form4_1767638204.xml · nonDerivative · entry 1

Weber Jason H · CIK 0001910158 · EVP, Treasurer & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,936.0868

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability on restricted shares previously awarded on March 15, 2024 and March 14, 2025, under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, that vested on January 1, 2026, in accordance with SEC Rule 16b-3. For clarification, the executive did not sell the shares.

SEC source: 0001628280-26-000299 · wk-form4_1767638188.xml · nonDerivative · entry 1

Bradley Andrew A · CIK 0001977972 · ACNB Bank SVP/Chief Risk Off.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,208.0206

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability on restricted shares previously awarded on March 14, 2025, under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, that vested on January 1, 2026, in accordance with SEC Rule 16b-3. For clarification, the executive did not sell the shares.

SEC source: 0001628280-26-000300 · wk-form4_1767638195.xml · nonDerivative · entry 1

Hayes Kevin J · CIK 0001972468 · SVP/Secretary & Gen. Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,381.9585

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability on restricted shares previously awarded on March 15, 2024 and March 14, 2025, under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, that vested on January 1, 2026, in accordance with SEC Rule 16b-3. For clarification, the executive did not sell the shares.

SEC source: 0001628280-26-000297 · wk-form4_1767638175.xml · nonDerivative · entry 1

Berwager Emily E · CIK 0001972643 · ACNB Bank SVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,378.4662

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability on restricted shares previously awarded on March 15, 2024 and March 14, 2025, under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, that vested on January 1, 2026, in accordance with SEC Rule 16b-3. For clarification, the executive did not sell the shares.

SEC source: 0001628280-26-000298 · wk-form4_1767638182.xml · nonDerivative · entry 1

Seibel Douglas A · CIK 0001708277 · ACNB Bank EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,750.2947

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability on restricted shares previously awarded on March 15, 2024 and March 14, 2025, under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, that vested on January 1, 2026, in accordance with SEC Rule 16b-3. For clarification, the executive did not sell the shares.

SEC source: 0001628280-26-000296 · wk-form4_1767638168.xml · nonDerivative · entry 1

Laub Laurie A · CIK 0001708167 · ACNB Bank EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,420.2099

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability on restricted shares previously awarded on March 15, 2024 and March 14, 2025, under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, that vested on January 1, 2026, in accordance with SEC Rule 16b-3. For clarification, the executive did not sell the shares.

F3 · balance_after: The amount of securities beneficially owned includes aggregate shares of common stock acquired in 2023 through the automatic reinvestment of dividends, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-26-000295 · wk-form4_1767638162.xml · nonDerivative · entry 1

FULK BRETT D · CIK 0001224269 · ACNB Bank EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,533.6469

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability on restricted shares previously awarded on March 15, 2024 and March 14, 2025, under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, that vested on January 1, 2026, in accordance with SEC Rule 16b-3. For clarification, the executive did not sell the shares.

SEC source: 0001628280-25-057569 · wk-form4_1765995863.xml · nonDerivative · entry 1

Kelley Scott L · CIK 0001549663 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,578.5053

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057568 · wk-form4_1765995854.xml · nonDerivative · entry 1

Carson Elizabeth F. · CIK 0002055139 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,720.8587

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057566 · wk-form4_1765995837.xml · nonDerivative · entry 1

Herring Todd L · CIK 0001710848 · Director · Vice Chairman of the Board

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,287.3332

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057567 · wk-form4_1765995843.xml · nonDerivative · entry 1

Polli John M. · CIK 0002055170 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,556.4581

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057565 · wk-form4_1765995831.xml · nonDerivative · entry 1

Potts Daniel W · CIK 0001350905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,755.0627

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057564 · wk-form4_1765995824.xml · nonDerivative · entry 1

Chiaruttini Alexandra C · CIK 0001828738 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,657.5349

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057562 · wk-form4_1765995812.xml · nonDerivative · entry 1

Draganosky Eugene J. · CIK 0002055135 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,087.3187

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057563 · wk-form4_1765995818.xml · nonDerivative · entry 1

Stock Alan J · CIK 0001343134 · Director · Chairman of the Board

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,528.9719

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057561 · wk-form4_1765995806.xml · nonDerivative · entry 1

FULK BRETT D · CIK 0001224269 · ACNB Bank EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,305.5314

F1 · balance_after: The amount of securities beneficially owned includes 78.8427 aggregate shares of common stock acquired in 2025 through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057560 · wk-form4_1765995800.xml · nonDerivative · entry 2

ELSNER FRANK III · CIK 0001271480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,173.5218

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057560 · wk-form4_1765995800.xml · nonDerivative · entry 1

ELSNER FRANK III · CIK 0001271480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,152.3952

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057559 · wk-form4_1765995793.xml · nonDerivative · entry 1

Chaney Kimberly S · CIK 0001800429 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,496.2729

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057558 · wk-form4_1765995787.xml · nonDerivative · entry 1

Lott James J · CIK 0001399227 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,563.0919

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057557 · wk-form4_1765995781.xml · nonDerivative · entry 1

Newell Donna M · CIK 0001549564 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,800.1857

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-057556 · wk-form4_1765995774.xml · nonDerivative · entry 1

Seibel Donald Arthur Jr · CIK 0001710898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,119.1516

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001628280-25-056690 · wk-form4_1765560443.xml · nonDerivative · entry 1

Seibel Donald Arthur Jr · CIK 0001710898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,927.2572

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

SEC source: 0001628280-25-053520 · wk-form4_1763743423.xml · nonDerivative · entry 1

Kelley Scott L · CIK 0001549663 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,424.7026

SEC source: 0002055170-25-000002 · wk-form4_1758133395.xml · nonDerivative · entry 1

Polli John M. · CIK 0002055170 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,337.6214

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001549663-25-000003 · wk-form4_1758133389.xml · nonDerivative · entry 1

Kelley Scott L · CIK 0001549663 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,028.7026

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001800429-25-000003 · wk-form4_1758133383.xml · nonDerivative · entry 1

Chaney Kimberly S · CIK 0001800429 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,322.2651

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001271480-25-000003 · wk-form4_1758133378.xml · nonDerivative · entry 2

ELSNER FRANK III · CIK 0001271480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,947.7714

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001271480-25-000003 · wk-form4_1758133378.xml · nonDerivative · entry 1

ELSNER FRANK III · CIK 0001271480 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,925.1577

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001343134-25-000003 · wk-form4_1758133371.xml · nonDerivative · entry 1

Stock Alan J · CIK 0001343134 · Director · Chairman of the Board

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,236.1356

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001710848-25-000003 · wk-form4_1758133358.xml · nonDerivative · entry 1

Herring Todd L · CIK 0001710848 · Director · Vice Chairman of the Board

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,010.6403

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0002055135-25-000002 · wk-form4_1758133363.xml · nonDerivative · entry 1

Draganosky Eugene J. · CIK 0002055135 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,934.133

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001828738-25-000004 · wk-form4_1758133346.xml · nonDerivative · entry 1

Chiaruttini Alexandra C · CIK 0001828738 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,500.7245

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001399227-25-000003 · wk-form4_1758133352.xml · nonDerivative · entry 1

Lott James J · CIK 0001399227 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,290.1057

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001710898-25-000003 · wk-form4_1758133340.xml · nonDerivative · entry 1

Seibel Donald Arthur Jr · CIK 0001710898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,927.2572

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001549564-25-000003 · wk-form4_1758133334.xml · nonDerivative · entry 1

Newell Donna M · CIK 0001549564 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,529.711

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0001350905-25-000004 · wk-form4_1758133328.xml · nonDerivative · entry 1

Potts Daniel W · CIK 0001350905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,547.7469

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0002055139-25-000002 · wk-form4_1758133322.xml · nonDerivative · entry 1

Carson Elizabeth F. · CIK 0002055139 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,567.673

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0000715579-25-000097 · wk-form4_1750176786.xml · nonDerivative · entry 1

Stock Alan J · CIK 0001343134 · Director · Chairman of the Board

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,904.5481

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0000715579-25-000095 · wk-form4_1750176765.xml · nonDerivative · entry 1

Newell Donna M · CIK 0001549564 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,221.4425

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0000715579-25-000096 · wk-form4_1750176776.xml · nonDerivative · entry 1

Draganosky Eugene J. · CIK 0002055135 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,756.0387

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.

SEC source: 0000715579-25-000094 · wk-form4_1750176754.xml · nonDerivative · entry 1

Herring Todd L · CIK 0001710848 · Director · Vice Chairman of the Board

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,695.8873

F1 · deemedExecutionDate: The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

F2 · shares: The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

F3 · balance_after: This amount includes shares of common stock purchased for the same transaction date through the automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934.