ACNB Director Todd Herring Acquires 243 Shares via Director Compensation Plan

This Form 4 filing reports that Todd L. Herring, Vice Chairman of the Board and Director of ACNB Corporation, acquired 243.3198 shares of ACNB common stock on June 15, 2026, at a price of $56.51 per share. The shares were received as compensation for service as a director pursuant to the company's director compensation plan. Following this transaction, Herring's direct ownership increased to 11,053.188 shares. The filing also discloses indirect holdings through a trust (1,189.1199 shares) and spousal ownership (1,052 shares). The transaction was executed in accordance with SEC Rule 16a-3(g)(2) and (g)(4), with the deemed execution date of June 16, 2026. The filing was signed by Kevin J. Hayes under power of attorney on June 17, 2026.