X0306 4 2019-11-13 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 2019-11-13 4 P 0 15385 12.7238 A 61256 I JMG Assets, LLC Common Stock 2019-11-14 4 P 0 500 11.805 A 61756 I JMG Assets, LLC Common Stock 126085 D Common Stock 31208 I MEG Assets, LLC Common Stock 7595 I MCG Assets, LLC Common Stock 95158 I JMG GST LLC The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.615 to $12.87, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4. 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 Reporting Person serves as the manager of MEG Assets, LLC and, as such, has the power to direct the voting and disposition of the reported securities. The Reporting Person disclaims beneficial ownership except to the extent of his pecuniary interest in the securities. The Reporting Person serves as the manager of MCG Assets, LLC and, as such, has the power to direct the voting and disposition of the reported securities. The Reporting Person disclaims beneficial ownership except to the extent of his pecuniary interest in the securities. 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. /s/ Andrew H. Everett II, Attorney-in-Fact 2019-11-14