0001437749-23-001452 4 1 20230118 20230120 20230120 Nelson Andrew C 0001611476 4 34 001-36522 23542015 3235 MCCONNELL DRIVE BATON ROUGE LA 70809 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 NELSON FORM 4 X0306 4 2023-01-18 0001602658 Investar Holding Corp ISTR 0001611476 Nelson Andrew C C/O INVESTAR HOLDING CORPORATION 10500 COURSEY BLVD. BATON ROUGE LA 70816 1 Common Stock 2023-01-18 4 A 0 1279 0 A 128584 D Common Stock 8058 I By AJ Investment Co LLC 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/ Andrew C. Nelson, M.D. 2023-01-20