0001437749-23-009373 4 1 20230401 20230404 20230404 D'Angelo John J 0001611432 4 34 001-36522 23800378 418 PECAN MEADOW DRIVE 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 D'ANGELO FORM 4 X0407 4 2023-04-01 0001602658 Investar Holding Corp ISTR 0001611432 D'Angelo John J C/O INVESTAR HOLDING CORPORATION 10500 COURSEY BLVD. BATON ROUGE LA 70816 1 1 Chief Executive Officer 0 Common Stock 2023-04-01 4 F 0 1303 13.96 D 187948 D Common Stock 2023-04-01 4 A 0 16977 0 A 204925 D Common Stock 25277 I 401(k) Common Stock 2089 I Minor children Employee Stock Options 13.96 2023-04-01 4 A 0 34497 0 A 2024-04-01 2033-04-01 Common Stock 34497 34497 D Grant of restricted stock units that convert into common stock on a one-for-one basis. Vesting occurs in equal increments on the anniversary dates for the following five years. One-fifth of the options are exercisable on the date indicated and on each of the next four anniversaries thereof. /s/ John D'Angelo 2023-04-04