John M. Gellert - 07 Mar 2026 Form 4 Insider Report for SEACOR Marine Holdings Inc. (SMHI)

Role: President and CEO, Director
Signature: /s/ Andrew H. Everett II, Attorney-in-Fact
Issuer symbol: SMHI
Transactions as of: 07 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 10 Mar 2026, 17:45:43 UTC
Previous filing: 05 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Gellert John M	President and CEO, Director	C/O SEACOR MARINE HOLDINGS INC., 12121 WICKCHESTER LANE, SUITE 500, HOUSTON	/s/ Andrew H. Everett II, Attorney-in-Fact	10 Mar 2026	0001292966

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SMHI	Common Stock	Options Exercise		+9,562	+0.91%		1,057,215	07 Mar 2026	Direct	F1
transaction	SMHI	Common Stock	Tax liability		-4,193	-0.4%	$7.31^*	1,053,022	07 Mar 2026	Direct
holding	SMHI	Common Stock						109,109	07 Mar 2026	JMG Assets, LLC	F2
holding	SMHI	Common Stock						95,158	07 Mar 2026	JMG GST LLC	F3
holding	SMHI	Common Stock						26,557	07 Mar 2026	Michael E. Gellert 2011 Family Trust	F4
holding	SMHI	Common Stock						17,180	07 Mar 2026	MCG Assets, LLC	F5

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SMHI	Performance Restricted Stock Units	Options Exercise		-9,562	-100%	$0.000000^*	0	07 Mar 2026	Common Stock	9,562		Direct	F1, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Performance restricted stock units ("PRSUs") convert into shares of Common Stock on a one-for-one basis.
F2	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.
F3	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.
F4	The Reporting Person is a co-investment director and beneficiary of the Michael E. Gellert 2011 Family Trust, and of which he disclaims beneficial ownership except to the extent of his pecuniary interest in the shares.
F5	The Reporting Person serves as a manager of MCG Assets, LLC and, as such, has the power to direct the voting and disposition of the reported shares. The Reporting Person disclaims beneficial ownership except to the extent of his pecuniary interest in the shares.
F6	On 3/7/23, the Reporting Person was granted 47,810 PRSUs ("2023 PRSUs") consisting of five equal tranches, each of which would be earned if and when the closing price of one share of Common Stock equals or exceeds the specified stock price performance goal for such tranche for 60 consecutive trading days during the three year performance period beginning on the grant date, provided that any earned PRSUs would not be settled until the third anniversary of the grant date, subject to satisfaction of the service-based vesting requirements set forth in the award agreement. The specified stock price performance goals for each tranche were $11.61, $13.21, $14.91, $16.62 and $18.22, respectively. The service-based vesting requirements and one of the specified stock price performance goals were satisfied during the performance period ending 3/7/26, and the shares of Common Stock were issued at such date with respect to one tranche of the 2023 PRSUs. The remaining 2023 PRSUs were forfeited.