X0306 4 2022-01-27 0 0001690334 SEACOR Marine Holdings Inc. SMHI 0001292966 Gellert John M C/O SEACOR MARINE HOLDINGS INC. 12121 WICKCHESTER LANE, SUITE 500 HOUSTON TX 77079 1 1 0 0 President and CEO Common Stock 2022-01-27 4 J 0 22353 A 109109 I JMG Assets, LLC Common Stock 472294 D Common Stock 95158 I JMG GST LLC Common Stock 38803 I Grantor Retained Annuity Trust Common Stock 26557 I Michael E. Gellert 2011 Family Trust Share distributions from Caroline International Holdings LLC and Caroline International Holdings II LLC, of which the Reporting Person is a non-managing member. These shares represent the Reporting Person's pro rata distribution of the shares received by Caroline International Holdings LLC and Caroline International Holdings II LLC as merger and related consideration pursuant to the Agreement and Plan of Merger among SEACOR Offshore OSV LLC, SEACOR OSV Partners I LP and SEACOR Marine Holdings Inc. The closing price of one share of Common Stock on January 27, 2022 was $4.16. The shares reported here are indirectly owned by the Reporting Person through JMG Assets, LLC. The Reporting Person is the Manager of JMG Assets, LLC. The shares reported here are indirectly owned by the Reporting Person through JMG GST LLC. The Reporting Person is the Manager of JMG GST LLC. The Reporting Person disclaims beneficial ownership except to the extent of his pecuniary interest. /s/ Andrew H. Everett II, Attorney-in-Fact 2022-01-28