0001602658-21-000016 4 1 20210120 20210122 20210122 HIDALGO WILLIAM H 0001127438 4 34 001-36522 21544073 1501 FRONT STREET P O BOX 790 MORGAN CITY LA 70381 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 wf-form4_161132731426261.xml FORM 4 X0306 4 2021-01-20 0 0001602658 Investar Holding Corp ISTR 0001127438 HIDALGO WILLIAM H C/O INVESTAR HOLDING CORPORATION 10500 COURSEY BLVD BATON ROUGE LA 70816 1 0 0 0 COMMON STOCK 2021-01-20 4 A 0 1780 0 A 38001 D COMMON STOCK 24138 I By spouse and by trust Grant of restricted stock units that convert into common stock on a one-for-one basis. Vesting occurs in equal increments on 1/1/2022 and 1/1/2023. /s/William H. Hidalgo, Sr. 2021-01-22