REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Directors of Investar Holding Corporation Opinion on the Internal Control Over Financial Reporting We have audited Investar Holding Corporation's (the “Company”) internal control over financial reporting as of December 31, 2020, based on criteria established in the Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013.