0001602658-21-000017 4 1 20210120 20210122 20210122 Middleton Suzanne O 0001611340 4 34 001-36522 21544082 340 LAKE AVENUE METAIRIE LA 70005 Investar Holding Corp 0001602658 6022 271560715 LA 1231 10500 COURSEY BLVD THIRD FLOOR BATON ROUGE LA 70816 225-227-2222 10500 COURSEY BLVD THIRD FLOOR BATON ROUGE LA 70816 4 1 wf-form4_161132738395562.xml FORM 4 X0306 4 2021-01-20 0 0001602658 Investar Holding Corp ISTR 0001611340 Middleton Suzanne O C/O INVESTAR HOLDING CORPORATION 10500 COURSEY BLVD. BATON ROUGE LA 70816 1 0 0 0 COMMON STOCK 2021-01-20 4 A 0 1780 0 A 30427 D Grant of restricted stock units that convert into common stock on a one-for-one basis. Vesting occurs in equal increments on 1/1/2022 and 1/1/2023. /s/Suzanne O. Middleton 2021-01-22