0001437749-23-001474 4 1 20230118 20230120 20230120 Lukinovich David J 0001611337 4 34 001-36522 23542080 18128 GREEN LAKES COURT BATON ROUGE LA 70810 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 LUKINOVICH FORM 4 X0306 4 2023-01-18 0001602658 Investar Holding Corp ISTR 0001611337 Lukinovich David J C/O INVESTAR HOLDING CORPORATION 10500 COURSEY BLVD. BATON ROUGE LA 70816 1 Common Stock 2023-01-18 4 A 0 1489 0 A 18890 D Common Stock 569 I By adult son, Joshua Lukinovich. Common Stock 16651 I By Solomon's Portico LLC Common Stock 551 I By adult son, David Lukinovich Jr. Common Stock 572 I By minor daughter Common Stock 15296 I By spouse Common Stock 125 I By minor son Common Stock 564 I By adult daughter, Mary Lukinovich 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/ David J. Lukinovich 2023-01-20