STOCK TITAN
  1. Home
  2. Sec-filings
  3. SMHI
  4. [Form 4] SEACOR Marine Holdings Inc. Insider Trading Activity

SEACOR Marine (NYSE: SMHI) SVP executes 19,271-share sale under 10b5-1 plan

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

SEACOR Marine Holdings Inc. executive Gregory Scott Rossmiller, the SVP & CAO, reported open-market sales of company common stock. He sold 9,670 shares on June 15, 2026 at a weighted average price of $7.27 per share and 9,601 shares on June 16, 2026 at a weighted average price of $7.17 per share. Both transactions were executed automatically under a Rule 10b5-1 trading plan adopted on March 13, 2026. Following these sales, he directly holds 275,470 shares of SEACOR Marine common stock.

Positive

  • None.

Negative

  • None.
Insider Rossmiller Gregory Scott
Role SVP & CAO
Sold 19,271 shs ($139K)
Type Security Shares Price Value
Sale Common Stock 9,601 $7.17 $69K
Sale Common Stock 9,670 $7.27 $70K
Holdings After Transaction: Common Stock — 275,470 shares (Direct)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.215 to $7.49, 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 reported sale of 9,670 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 13, 2026. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.06 to $7.22, 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 reported sale of 9,601 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 13, 2026.
Shares sold June 15, 2026 9,670 shares Open-market sale of common stock
Weighted average price June 15 $7.27 per share Common stock sale
Shares sold June 16, 2026 9,601 shares Open-market sale of common stock
Weighted average price June 16 $7.17 per share Common stock sale
Total shares sold 19,271 shares Net open-market sales reported in Form 4
Shares owned after transactions 275,470 shares Direct ownership following June 16, 2026 sale
Trading plan adoption date March 13, 2026 Rule 10b5-1 trading plan for automatic sales
Rule 10b5-1 trading plan regulatory
"The reported sale of 9,670 shares occurred automatically pursuant to a Rule 10b5-1 trading plan"
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 sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Common Stock financial
""security_title": "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
Form 4 regulatory
"within the ranges set forth in this footnote to this Form 4."
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Form 4 Insider Transactions: What Each Field Means →

FAQ

What insider transaction did SEACOR Marine (SMHI) report for Gregory Scott Rossmiller?

SEACOR Marine reported that SVP & CAO Gregory Scott Rossmiller sold 19,271 common shares in two open-market transactions. These sales occurred on June 15 and June 16, 2026, and were executed automatically under a pre-established Rule 10b5-1 trading plan adopted earlier in March 2026.

How many SEACOR Marine (SMHI) shares did the insider sell and at what prices?

Rossmiller sold 9,670 shares at a weighted average price of $7.27 and 9,601 shares at a weighted average price of $7.17. The filing notes each sale comprised multiple trades within disclosed price ranges around those weighted averages for SEACOR Marine common stock.

What is Gregory Scott Rossmiller’s remaining SEACOR Marine (SMHI) shareholding after the sales?

After completing the June 2026 transactions, Rossmiller directly holds 275,470 shares of SEACOR Marine common stock. This remaining position reflects his post-transaction ownership as reported in the Form 4 and provides context for the relative size of the disclosed insider sales.

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

Yes. The filing states that both the 9,670-share sale and the 9,601-share sale occurred automatically under a Rule 10b5-1 trading plan. Rossmiller adopted this plan on March 13, 2026, indicating the transactions were pre-scheduled rather than discretionary market-timing decisions.

What price ranges applied to the SEACOR Marine (SMHI) insider stock sales?

The June 15, 2026 sale had individual trade prices ranging from $7.215 to $7.49, while the June 16, 2026 sale ranged from $7.06 to $7.22. Reported prices in the Form 4 are weighted averages across multiple trades within those specified ranges.

SEC Form 4
FORM 4UNITED 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).
X
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)
Director10% Owner
XOfficer (give title below)Other (specify below)
SVP & CAO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock06/15/2026S9,670D$7.27(1)285,071D(2)
Common Stock06/16/2026S9,601D$7.17(3)275,470D(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
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 $7.215 to $7.49, 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.
2. The reported sale of 9,670 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 $7.06 to $7.22, 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.
4. The reported sale of 9,601 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-Fact06/16/2026
** Signature of Reporting PersonDate
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