X0306 4/A 2019-10-15 2019-10-15 0 0001690334 SEACOR Marine Holdings Inc. SMHI 0001777507 Miguel Bejos Alfredo C/O SEACOR MARINE HOLDINGS INC. 12121 WICKCHESTER LANE, SUITE 500 HOUSTON TX 77079 1 0 0 0 Common Stock 2019-10-15 4 S 0 11024 13.5329 D 220143 D This trade occurred pursuant to a Rule 10b5-1 trading plan established by the Reporting Person on September 12, 2019. The price reported to Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.34 to $13.70, 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 range set forth in this footnote to this Form 4/A. On October 15, 2019, the Reporting Person filed a Form 4 that mistakenly reported that 18,881 shares were sold on October 15, 2019 at a weighted average price of $13.4454 in multiple transaction at prices ranging from $13.08 to $13.70, inclusive. In fact, as reported in this amendment, the Reporting Person sold 11,024 shares on October 15, 2019 at a weighted average price of $13.5329 in multiple transactions at prices ranging from $13.34 to $13.70, inclusive. /s/ Andrew H. Everett II, Attorney-in-Fact 2019-10-17