 GETTYSBURG, Pa., Feb. 25, 2021 GLOBE NEWSWIRE -- ACNB Corporation NASDAQ: ACNB, financial holding company for ACNB Bank and Russell Insurance Group, Inc., announced that the Board of Directors has approved a plan to repurchase, in open market and privately negotiated transactions, up to 261,000, or approximately 3, of the outstanding shares of the Corporations common stock. 