SEACOR Marine (NYSE: SMHI) SVP receives stock and 16,420 performance RSUs

Rhea-AI Filing Summary

Rossmiller Gregory Scott reported acquisition or exercise transactions in this Form 4 filing.

SEACOR Marine Holdings Inc. SVP & CAO Gregory Scott Rossmiller reported receiving equity awards on February 27, 2026. He was granted 34,215 shares of common stock, increasing his direct common share holdings to 317,419, and 16,420 Performance Restricted Stock Units at no cash cost.

The restricted stock vests in five equal annual installments from March 4, 2027 through March 4, 2031. The 16,420 performance units are split into five tranches that can be earned only if specified stock price targets between $7.67 and $11.08 are met for 60 consecutive trading days within a three-year performance period and service-based conditions are satisfied.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Rossmiller Gregory Scott

(Last) (First) (Middle)

C/O SEACOR MARINE HOLDINGS INC.

12121 WICKCHESTER LANE, SUITE 500

(Street)

HOUSTON TX 77079

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SEACOR Marine Holdings Inc. [ SMHI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & CAO

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/27/2026		A		34,215(1)	A	$0	317,419	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Restricted Stock Units	(2)	02/27/2026		A		16,420		(3)	(3)	Common Stock	16,420	$0	16,420	D

Explanation of Responses:

1. The restricted stock award reported on this Form 4 will lapse in five equal annual installments beginning on March 4, 2027 and ending on March 4, 2031.

2. Each Performance Restricted Stock Unit (each, a "PRSU") represents a contingent right to receive, at vesting, one share of Common Stock subject to the achievement of certain performance goals and service-based vesting requirements.

3. These PRSUs consist of five equal tranches, each of which will 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 will 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 are $7.67, $8.52, $9.38, $10.23 and $11.08, respectively.

	/s/ Andrew H. Everett II, Attorney-in-Fact	03/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What equity awards did SMHI executive Gregory Scott Rossmiller receive?

Gregory Scott Rossmiller received 34,215 shares of SEACOR Marine common stock and 16,420 Performance Restricted Stock Units. Both awards were granted at no cash cost as compensation, increasing his direct common stock holdings to 317,419 shares after the transaction.

How do the new Performance Restricted Stock Units for SMHI’s SVP work?

The 16,420 Performance Restricted Stock Units are split into five equal tranches and each represents a right to one share of common stock at vesting. They vest only if specific stock price goals and service-based conditions are met over a three-year performance period.

What stock price targets apply to SMHI’s new performance RSUs?

Each tranche of the Performance Restricted Stock Units has a stock price target: $7.67, $8.52, $9.38, $10.23, and $11.08. A tranche is earned if the closing price meets or exceeds its target for 60 consecutive trading days during the three-year performance period.

When will Gregory Scott Rossmiller’s restricted stock in SMHI vest?

The restricted stock award will vest in five equal annual installments. Vesting starts on March 4, 2027 and continues each year until March 4, 2031, assuming continued service and satisfaction of any applicable vesting conditions.

When are SMHI’s performance RSUs for Rossmiller settled into shares?

Any earned Performance Restricted Stock Units will not be settled until the third anniversary of the grant date. Settlement remains subject to the service-based vesting requirements outlined in the award agreement, even after the stock price performance goals have been achieved.

How did this Form 4 transaction affect Rossmiller’s SMHI share ownership?

Following the common stock grant, Gregory Scott Rossmiller directly owns 317,419 shares of SEACOR Marine common stock. He also holds 16,420 Performance Restricted Stock Units, which may convert into additional shares if performance and service-based vesting conditions are satisfied.