144 0001338856 XXXXXXXX LIVE 0001690334 SEACOR Marine Holdings Inc. 001-37966 12121 WICKCHESTER LANE SUITE 500 HOUSTON TX 77079 9858765400 Regan Robert Christopher Director common MERRILL LYNCH

114 W 47TH ST NEW YORK NY 10036

16000 144956.29 15809 06/05/2023 NYSE COMMON 07/19/2021 RESTRICTED STOCK BONUS COMPENSATION ROBERT CHRIS REGAN N 31309 07/19/2021 BONUS FROM COMPANY N ROBERT CHRIS REGAN

381 MT HOLLY RD KATONAH NY 10536

SEACOR MARINE HOLDINGS INC 03/08/2023 21666 219703.69 06/05/2023 ROBERT CHRIS REGAN