144 0001105838 XXXXXXXX LIVE 0000098222 TIDEWATER INC 001-06311 842 WEST SAM HOUSTON PARKWAY NORTH SUITE 400 HOUSTON TX 77024 (713) 470-5300 ROBOTTI ROBERT Director Common Stock, $0.001 Par Value Per Share Robotti Securities, LLC

125 Park Avenue, Suite 1607 NEW YORK NY 10017-8501

537854 47643107.00 49756231 09/16/2026 NYSE Common Stock, $0.001 Par Value Per Share 05/16/2017 Open Market Purchase Open Market Purchase N 5258 05/18/2017 Cash Common Stock, $0.001 Par Value Per Share 08/08/2019 Open Market Purchase Open Market Purchase N 19220 08/12/2019 Cash Common Stock, $0.001 Par Value Per Share 05/12/2022 Open Market Purchase Open Market Purchase N 21272 05/16/2022 Cash Common Stock, $0.001 Par Value Per Share 05/13/2022 Open Market Purchase Open Market Purchase N 1 05/17/2022 Cash Common Stock, $0.001 Par Value Per Share 08/10/2022 Open Market Purchase Open Market Purchase N 220446 08/12/2022 Cash Common Stock, $0.001 Par Value Per Share 07/31/2023 Open Market Purchase Open Market Purchase N 78973 07/31/2023 Cash Common Stock, $0.001 Par Value Per Share 08/10/2022 Open Market Purchase Open Market Purchase N 80759 08/12/2022 Cash Common Stock, $0.001 Par Value Per Share 07/31/2023 Open Market Purchase Open Market Purchase N 38725 08/02/2023 Cash Common Stock, $0.001 Par Value Per Share 08/10/2023 Open Market Purchase Open Market Purchase N 48200 08/14/2023 Cash Common Stock, $0.001 Par Value Per Share 03/13/2025 Open Market Purchase Open Market Purchase N 25000 03/14/2025 Cash Y 09/16/2026 /s/ Robert E. Robotti