X0306 4 2017-06-15 0 0000715579 ACNB CORP ACNB 0001708297 Stone Thomas R 2701 PRIMROSE LANE E YORK PA 17402 0 0 0 1 ACNB Bank EVP ACNB Corporation Common 2017-06-15 4 A 0 649.0179 29.275 A 2149.3334 D One-third (1/3) of this Variable Equity Award, granted under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2009 Restricted Stock Plan, is 100% vested as of the Grant Date of June 15, 2017, with the next one-third (1/3) 100% vested as of January 1, 2018, and the final one-third (1/3) 100% vested as of January 1, 2019. The amount of securities beneficially owned includes 6.687617 shares of common stock purchased for the same Transaction Date of June 15, 2017, 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 Thomas R. Stone 2017-06-19