What insider share sales did SEACOR Marine (SMHI) report for July 30, 2026?

SEACOR Marine reported that SVP & CAO Gregory Scott Rossmiller sold 27,741 common shares on July 30, 2026, in two transactions of 12,741 and 15,000 shares at weighted-average prices of $8.74 and $9.52 per share.

SEACOR Marine (SMHI) SVP sells 27,741 shares under 10b5-1 plan

Q: Who is Gregory Scott Rossmiller in relation to SEACOR Marine (SMHI)?

Gregory Scott Rossmiller is reported as SEACOR Marine’s Senior Vice President & Chief Accounting Officer (SVP & CAO) . He is the reporting person on this Form 4 detailing his sales of SEACOR Marine common stock on July 30, 2026.

Q: Were the SEACOR Marine (SMHI) insider sales made under a Rule 10b5-1 trading plan?

Yes. Both reported sales of 12,741 and 15,000 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by Gregory Scott Rossmiller on March 13, 2026 , as stated in the footnotes.

Q: At what prices were the SEACOR Marine (SMHI) shares sold by Rossmiller?

The 12,741 shares were sold at a weighted-average price of $8.74 per share within a range of $8.52–$9.10 . The 15,000 shares were sold at a weighted-average price of $9.52 per share within a range of $9.50–$9.60 .

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

SEACOR Marine Holdings Inc. executive Gregory Scott Rossmiller, SVP & CAO, reported selling a total of 27,741 shares of common stock on July 30, 2026. The sales, at weighted-average prices of $8.74 and $9.52 per share within stated ranges, occurred automatically under a Rule 10b5-1 trading plan adopted March 13, 2026.

Insider Trade Summary 10b5-1

Net Seller: 27,741 shares

Net Sell 2 txns

Insider Rossmiller Gregory Scott

Role SVP & CAO

Sold 27,741 shs ($254K)

Type	Security	Shares	Price	Value
Sale	Common Stock ^{F1, F2}	12,741	$8.74	$111K
Sale	Common Stock ^{F3, F4}	15,000	$9.52	$143K

Holdings After Transaction: Common Stock — 244,506 shares (Direct)

Footnotes (4)

F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.52 to $9.10, 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.
F2. The reported sale of 12,741 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 13, 2026.
F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.50 to $9.60, 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.
F4. The reported sale of 15,000 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 13, 2026.

Key Figures

Shares sold (block 1): 12,741 shares Price per share (block 1): $8.74 Shares sold (block 2): 15,000 shares +2 more

5 metrics

Shares sold (block 1) 12,741 shares Common stock sale on July 30, 2026 at weighted-average price

Price per share (block 1) $8.74 Weighted-average sale price; individual trades $8.52–$9.10

Shares sold (block 2) 15,000 shares Common stock sale on July 30, 2026 at weighted-average price

Price per share (block 2) $9.52 Weighted-average sale price; individual trades $9.50–$9.60

Total shares sold 27,741 shares Aggregate of both reported open market or private sales

Key Terms

Rule 10b5-1 trading plan, weighted average price, open market or private transaction

3 terms

Rule 10b5-1 trading plan regulatory

"occurred automatically pursuant to a Rule 10b5-1 trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market or private transaction financial

"transaction code description: Sale in open market or private transaction"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/31/2026 - 06:01 PM Accepted by SEC EDGAR 07/31/2026 - 06:01 PM

FAQ

Who is Gregory Scott Rossmiller in relation to SEACOR Marine (SMHI)?

Gregory Scott Rossmiller is reported as SEACOR Marine’s Senior Vice President & Chief Accounting Officer (SVP & CAO). He is the reporting person on this Form 4 detailing his sales of SEACOR Marine common stock on July 30, 2026.

Were the SEACOR Marine (SMHI) insider sales made under a Rule 10b5-1 trading plan?

Yes. Both reported sales of 12,741 and 15,000 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by Gregory Scott Rossmiller on March 13, 2026, as stated in the footnotes.

At what prices were the SEACOR Marine (SMHI) shares sold by Rossmiller?

The 12,741 shares were sold at a weighted-average price of $8.74 per share within a range of $8.52–$9.10. The 15,000 shares were sold at a weighted-average price of $9.52 per share within a range of $9.50–$9.60.

How many SEACOR Marine (SMHI) shares did Rossmiller sell in total?

Across the reported transactions, Gregory Scott Rossmiller sold a total of 27,741 shares of SEACOR Marine common stock. This total comes from two blocks: 12,741 shares in one sale and 15,000 shares in another on July 30, 2026.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

TEXAS

77079

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/30/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	07/30/2026		S		12,741	D	$8.74⁽¹⁾	259,506	D⁽²⁾
Common Stock	07/30/2026		S		15,000	D	$9.52⁽³⁾	244,506	D⁽⁴⁾

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.52 to $9.10, 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.

2. The reported sale of 12,741 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 13, 2026.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.50 to $9.60, 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.

4. The reported sale of 15,000 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 13, 2026.

	/s/ Andrew H. Everett II, Attorney-in-Fact	07/31/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR