 BATON ROUGE, La., Jan. 25, 2021 GLOBE NEWSWIRE -- Investar Holding Corporation the Investar NASDAQ:ISTR, the holding company for Investar Bank, National Association the Bank, announced today that it has entered into a definitive agreement the Agreement to acquire Cheaha Financial Group, Inc. Cheaha, headquartered in Oxford, Alabama, and its wholly-owned subsidiary, Cheaha Bank. Investar also announced financial results for the quarter ended December 31, 2020. 