X0306 4 2018-03-15 0 0000715579 ACNB CORP ACNB 0001269858 GLASS LYNDA L 68 WEST MOUNTAIN TOP DRIVE ORRTANNA PA 17353 0 1 0 0 EVP, Secretary & CGO ACNB Corporation Common 2018-03-15 2018-03-19 4 P 0 34.0426 29.375 A 8312.5918 D The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4). The amount of securities beneficially owned includes 27.579234 shares of common stock purchased for the same Transaction Date of March 15, 2018, 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 2018-03-21