X0306 4 2019-12-13 0 0000715579 ACNB CORP ACNB 0001641763 Alloway Richard Lee II 110 EMERALD DRIVE CHAMBERSBURG PA 17202 1 0 0 0 ACNB Corporation Common 2019-12-13 2019-12-18 4 A 0 159.9889 35.94 A 3396.895 D The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4). The shares represent stock received in lieu of director fees pursuant to a plan. The amount of securities beneficially owned includes 17.572899 shares of common stock purchased for the same Transaction Date of December 13, 2019, 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. /s/ Lynda L. Glass as POA for Richard Lee Alloway II 2019-12-20