ACNB Corp (ACNB) director reports sale of 5,000 shares at $51 in December 2025

Rhea-AI Filing Summary

ACNB Corp had a company director report disposing of 5,000 shares of ACNB Corporation common stock on December 11, 2025 at a price of $51 per share. The transaction is shown in the form with transaction code "S" and classified as a disposition.

After this transaction, the director beneficially owned 5,927.2572 shares directly and an additional 12,519.0708 shares indirectly through a trust, according to the ownership table.

Insider Trade Summary

Net Seller: 5,000 shares ($255,000)

Net Sell 2 txns

Insider Seibel Donald Arthur Jr

Role Director

Sold 5,000 shs ($255K)

Type	Security	Shares	Price	Value
Sale	ACNB Corporation Common	5,000	$51.00	$255K
holding	ACNB Corporation Common	--	--	--

Holdings After Transaction: ACNB Corporation Common — 5,927.257 shares (Direct); ACNB Corporation Common — 12,519.071 shares (Indirect, Trust)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Seibel Donald Arthur Jr

(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)
12/11/2025

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	12/11/2025	12/12/2025(1)	S		5,000	D	$51	5,927.2572	D
ACNB Corporation Common								12,519.0708	I	Trust

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).

Remarks:

	/s/ Kevin J. Hayes as POA for Donald Arthur Seibel, Jr.	12/12/2025
	** 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 transaction did ACNB (ACNB) report in December 2025?

A company director disposed of 5,000 ACNB Corp common shares at $51 per share on December 11, 2025, as shown in the non-derivative table.

What is the role of the person involved in the ACNB Corp share transaction?

The reporting person is marked as a Director of ACNB Corp in the relationship section of the form.

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

Following the reported transaction, the director beneficially owned 5,927.2572 ACNB Corp common shares in direct ownership.

How many ACNB Corp shares does the director own indirectly and in what form?

The form shows the director with 12,519.0708 ACNB Corp common shares in indirect ownership, held through a trust.

What dates are associated with the reported ACNB Corp transaction?

The transaction date is listed as December 11, 2025, with a deemed execution date of December 12, 2025, determined under SEC Rule 16a-3(g)(2) and (g)(4).