X0306 5/A 2019-12-31 2020-02-12 0 0 0 0000715579 ACNB CORP ACNB 0001549564 Newell Donna M 357 FOX HILL ROAD BIGLERVILLE PA 17307 1 0 0 0 ACNB Corporation Common 6510.7995 D ACNB Corporation Common 253 I Spouse Revised Explanation: The amount of securities beneficially owned was increased to include 69.097 aggregate shares of common stock acquired in 2019 through the automatic reinvestment of dividends, which are exempt from the reporting requirements of Section 16 of the Securities Exchange Act of 1934. /s/ Lynda L. Glass as POA for Donna M. Newell 2020-03-20