ACNB director receives stock award as compensation

ACNB CORP director John M. Polli received additional company stock as part of his board compensation.

Rhea-AI Filing Summary

ACNB CORP director John M. Polli received additional company stock as part of his board compensation. On this Form 4, he was granted 243.3198 shares of ACNB Corporation Common at a reference price of $56.51 per share as a stock award, not an open-market purchase.

After this grant and related dividend reinvestment activity, his direct holdings increased to a reported total of 36,123.7134 shares. The filing notes that the shares were received under a director compensation plan and that some shares were also acquired automatically through ACNB Corporation’s Dividend Reinvestment and Stock Purchase Plan.

Insider Trade Summary

Grant/Award: 243.3198 shares

Grant/Award 1 txn

Insider Polli John M.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	ACNB Corporation Common	243.3198	$56.51	$14K

Holdings After Transaction: ACNB Corporation Common — 36,123.7134 shares (Direct)

Footnotes (3)

1. F1. The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).
2. F2. The shares represent stock received as compensation for service as a director pursuant to a director compensation plan.
3. F3. 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.

Key Figures

Shares granted: 243.3198 shares Grant price: $56.51 per share Total holdings after grant: 36,123.7134 shares

3 metrics

Shares granted 243.3198 shares Stock award for service as a director

Grant price $56.51 per share Reference price for ACNB Corporation Common

Total holdings after grant 36,123.7134 shares Direct ownership following reported transactions

Key Terms

Grant, award, or other acquisition, director compensation plan, Dividend Reinvestment and Stock Purchase Plan, Section 16 of the Securities Exchange Act of 1934

4 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

director compensation plan financial

"stock received as compensation for service as a director pursuant to a director compensation plan"

Dividend Reinvestment and Stock Purchase Plan financial

"automatic reinvestment of dividends under the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan"

A dividend reinvestment and stock purchase plan lets investors automatically use cash dividends to buy additional shares and often make extra share purchases directly from the company, usually at low or no commission. Think of it as an automatic savings plan for stock: dividends and optional contributions are turned into more shares, helping ownership grow through compounding and making regular investing simple and low-cost—key for long-term investors.

Section 16 of the Securities Exchange Act of 1934 regulatory

"exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934"

A provision of federal securities law that requires company insiders—directors, officers and large shareholders—to publicly report their stock holdings and trades and to surrender any “short-swing” profits from purchases and sales within a six-month window. It acts like a rule that forces leaders to announce their trades and prevents quick buy-sell windfalls, giving investors transparency into insider activity and reducing opportunities for unfair gain.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did ACNB (ACNB) director John M. Polli report on this Form 4?

Director John M. Polli reported receiving ACNB Corporation Common shares as compensation. The filing shows a stock award rather than an open-market trade, documenting routine director compensation and updating his total direct share holdings with the company.

How many ACNB (ACNB) shares did John M. Polli acquire in this transaction?

John M. Polli acquired 243.3198 shares of ACNB Corporation Common. These shares were granted as a stock award under a director compensation plan, reflecting equity-based pay instead of a cash salary component for his service on the company’s board.

What is John M. Polli’s total ACNB (ACNB) shareholding after the reported grant?

Following the reported grant and related dividend reinvestment, John M. Polli directly holds 36,123.7134 ACNB Corporation Common shares. This total includes the new award and shares accumulated through ACNB’s Dividend Reinvestment and Stock Purchase Plan.

Was the ACNB (ACNB) Form 4 transaction an open-market purchase or a compensation award?

The Form 4 transaction was a compensation-related stock award, not an open-market purchase. The filing specifies that the shares were received for service as a director under a director compensation plan, reflecting routine equity compensation practices.

What price per share is referenced for the ACNB (ACNB) director stock award?

The Form 4 lists a reference price of $56.51 per share for the ACNB Corporation Common grant. This price is used for reporting purposes on the stock award and does not indicate an open-market trade by the director.

How are dividend reinvestment shares handled in John M. Polli’s ACNB (ACNB) holdings?

The filing notes that his total share amount includes stock purchased through automatic dividend reinvestment under ACNB’s Dividend Reinvestment and Stock Purchase Plan. Those reinvestment purchases are exempt from Section 16 reporting but still contribute to his overall direct holdings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/17/2026 - 03:41 PM EDT Learn about SEC filing dates

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^*

Polli John M.

(Last) (First) (Middle)

16 LINCOLN SQUARE

(Street)

GETTYSBURG PENNSYLVANIA 17325

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

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

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

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

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	06/15/2026	06/16/2026(1)	A		243.3198(2)	A	$56.51	36,123.7134(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 John M. Polli	06/17/2026
	** 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.
* Form 4: SEC 1474 (03-26)