0001437749-24-001747 4 1 20240117 20240119 20240119 Hudson Rose J 0001955155 4 34 001-36522 24546092 555 LAUREL STREET BATON ROUGE LA 70801 Investar Holding Corp 0001602658 6022 02 Finance 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 HUDSON FORM 4 X0508 4 2024-01-17 0001602658 Investar Holding Corp ISTR 0001955155 Hudson Rose J C/O INVESTAR HOLDING CORPORATION 10500 COURSEY BLVD. BATON ROUGE LA 70816 1 0 Common Stock 2024-01-17 4 A 0 1918 0 A 7641 D Grant of restricted stock units that convert into common stock on a one-for-one basis. Vesting occurs in equal increments on 1/17/2025 and 1/1/2026. /s/ Rose J. Hudson 2024-01-19