0001437749-23-001462 4 1 20230118 20230120 20230120 Middleton Suzanne O 0001611340 4 34 001-36522 23542034 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 rdgdoc.xml MIDDLETON FORM 4 X0306 4 2023-01-18 0001602658 Investar Holding Corp ISTR 0001611340 Middleton Suzanne O C/O INVESTAR HOLDING CORPORATION 10500 COURSEY BLVD. BATON ROUGE LA 70816 1 Common Stock 2023-01-18 4 A 0 1582 0 A 34394 D Grant of restricted stock units that convert into common stock on a one-for-one basis. Vesting occurs in equal increments on 1/18/2024 and 1/1/2025. /s/ Suzanne O. Middleton 2023-01-20