ACNB Corp (ACNB) director receives stock compensation and updates stake

Rhea-AI Filing Summary

ACNB Corp director Alexandra C. Chiaruttini reported receiving additional common shares as part of her board compensation. On 12/15/2025, she acquired 149.5869 shares of ACNB Corporation common stock at $52.645 per share, recorded as an acquisition. The filing notes that these shares represent stock received for service as a director under a compensation plan and include shares purchased the same day through automatic dividend reinvestment.

Following this transaction, Chiaruttini directly beneficially owns 2,657.5349 shares of ACNB Corporation common stock.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Chiaruttini Alexandra C

(Last) (First) (Middle)

16 LINCOLN SQUARE

(Street)

GETTYSBURG PA 17325

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ACNB CORP [ ACNB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
ACNB Corporation Common	12/15/2025	12/16/2025(1)	A		149.5869(2)	A	$52.645	2,657.5349(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

2. The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.

3. 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.

Remarks:

	Kevin J. Hayes as POA for Alexandra C. Chiaruttini	12/17/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider stock transaction did ACNB (ACNB) disclose in this filing?

The filing shows that director Alexandra C. Chiaruttini acquired 149.5869 shares of ACNB Corporation common stock on 12/15/2025 at a price of $52.645 per share as an acquisition.

How many ACNB Corp shares does the reporting director own after this transaction?

After the reported transaction, the director beneficially owns 2,657.5349 shares of ACNB Corporation common stock, held in direct ownership.

Why did the ACNB Corp director receive these shares?

The filing states that the 149.5869 shares represent stock received as compensation for service as a director under an ACNB Corporation director compensation plan.

Does this ACNB (ACNB) Form 4 include dividend reinvestment plan shares?

Yes. The explanation notes that the reported amount includes shares of common stock purchased on the same transaction date through the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan.

Is the ACNB Corp director’s ownership reported as direct or indirect in this filing?

The table shows the 2,657.5349 shares as held in direct (D) ownership by the reporting person.

What is the earliest transaction date reported in this ACNB insider filing?

The earliest transaction date reported is 12/15/2025, which is when the acquisition of 149.5869 ACNB Corporation common shares occurred.