Donald Arthur Seibel Jr. - 15 Jun 2026 Form 4 Insider Report for ACNB CORP (ACNB)

Reporting relationship: Director
Issuer ticker: ACNB
Reported as of: 15 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 17 Jun 2026, 15:41:46 UTC
Prior SEC filing: 17 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Kevin J. Hayes as POA for Donald Arthur Seibel, Jr.

Key filing fact

Donald Arthur Seibel Jr. filed Form 4 for ACNB CORP (ACNB) on 17 Jun 2026.

Key facts

This page summarizes Donald Arthur Seibel Jr.'s Form 4 filing for ACNB CORP (ACNB).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 17 Jun 2026, 15:41.

Change

Previous filing in this sequence was filed on 17 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001710898 Primary reporting owner

Seibel Donald Arthur Jr

Relationship: Director
Address: 16 LINCOLN SQUARE, GETTYSBURG
Signature: /s/ Kevin J. Hayes as POA for Donald Arthur Seibel, Jr.
Signature date: 17 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ACNB transaction

ACNB Corporation Common

Award

Transaction value
Shares: +243
Change %: +3.7%
Price: $56.51^*
Shares after: 6,812
Date: 15 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F3

ACNB holding

ACNB Corporation Common

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 12,920
Date: 15 Jun 2026
Ownership: Trust
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

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

Footnote F2

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

Footnote 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.