0001437749-23-016736 4 1 20230602 20230606 20230606 HIDALGO WILLIAM H 0001127438 4 34 001-36522 23995815 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 rdgdoc.xml HIDALGO FORM 4 X0407 4 2023-06-02 0001602658 Investar Holding Corp ISTR 0001127438 HIDALGO WILLIAM H C/O INVESTAR HOLDING CORPORATION 10500 COURSEY BLVD. BATON ROUGE LA 70816 1 0 Common Stock 2023-06-02 4 P 0 10000 11.42 A 51156 D Common Stock 24138 I By spouse and by trust The reported price is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $11.25 to $11.57 per share. The reporting person undertakes to provide to Investar Holding Corporation, any security holder of Investar Holding Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. /s/ William H. Hidalgo, Sr. 2023-06-06