X0306 4 2022-01-12 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 2022-01-12 4 J 0 26557 A 26557 I Michael E. Gellert 2011 Family Trust Common Stock 472294 D Common Stock 95158 I JMG GST LLC Common Stock 86756 I JMG Assets, LLC Common Stock 38803 I Grantor Retained Annuity Trust Merger and related consideration for certain limited partner interests and loans owned by the Michael E. Gellert 2011 Family Trust pursuant to the Agreement and Plan of Merger among SEACOR Offshore OSV LLC, SEACOR OSV Partners I LP and SEACOR Marine Holdings Inc. All conditions to receipt of such consideration were satisfied on January 12, 2022. The closing price of one share of Common Stock on January 12, 2022 was $4.07. The Reporting Person disclaims beneficial ownership except to the extent of his pecuniary interest. 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 shares reported here are indirectly owned by the Reporting Person through JMG Assets, LLC. The Reporting Person is the Manager of JMG Assets, LLC. /s/ Andrew H. Everett II, Attorney-in-Fact 2022-01-13