 BATON ROUGE, La., April 01, 2021 GLOBE NEWSWIRE -- Investar Holding Corporation Nasdaq:ISTR the Company, the holding company of Investar Bank, National Association the Bank, today announced the completion of its acquisition of Cheaha Financial Group, Inc. Cheaha, the holding company for Cheaha Bank, in Oxford, Alabama. A definitive agreement relating to the acquisition was previously announced in January 2021. 