SEACOR Marine Holdings Inc. SEC filings SMHI
SEACOR Marine Holdings Inc. has 585 filings in SEC EDGAR's recent list, going back to Dec 13, 2016. Its latest annual report, Form ARS, was filed on Apr 16, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 28, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 2, 2026 | — |
| 4 | Insider transaction | Sep 4, 2026 | Sep 2, 2026 |
| 4 | Insider transaction | Sep 4, 2026 | Sep 2, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 21, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 21, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 17, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 7, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 11, 2026 | — |
| 4 | Insider transaction | Aug 4, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Jul 31, 2026 | Jul 30, 2026 |
| 4 | Insider transaction | Jul 31, 2026 | Jul 30, 2026 |
| 4 | Insider transaction | Jul 31, 2026 | Jul 30, 2026 |
| 4 | Insider transaction | Jul 17, 2026 | Jul 15, 2026 |
| 4 | Insider transaction | Jul 17, 2026 | Jul 15, 2026 |
| 4 | Insider transaction | Jul 15, 2026 | Jul 14, 2026 |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Jun 24, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 24, 2026 | Jun 22, 2026 |
| 144 | Notice of proposed sale | Jun 24, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Jun 22, 2026 | — |
| 144 | Notice of proposed sale | Jun 22, 2026 | — |
| 4 | Insider transaction | Jun 16, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 20, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 21, 2026 | — |
| 4 | Insider transaction | Mar 10, 2026 | Mar 7, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 7, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 7, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 7, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 21, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 31, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Nov 12, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 12, 2025 | Nov 11, 2025 |
| 144 | Notice of proposed sale | Nov 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 29, 2025 | — |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 21, 2025 | — |
| 4 | Insider transaction | Mar 12, 2025 | Mar 11, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 11, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 11, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 11, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 23, 2025 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Jan 17, 2025 | — |
| 4 | Insider transaction | Sep 25, 2024 | Sep 23, 2024 |
| 4 | Insider transaction | Sep 23, 2024 | Sep 19, 2024 |
| 3 | Initial insider ownership | Sep 23, 2024 | Sep 19, 2024 |
| 4 | Insider transaction | Aug 26, 2024 | Aug 22, 2024 |
| 4 | Insider transaction | Jul 17, 2024 | Jul 16, 2024 |
| 4 | Insider transaction | Jul 17, 2024 | Jul 16, 2024 |
| 4 | Insider transaction | Jul 17, 2024 | Jul 16, 2024 |
| 144 | Notice of proposed sale | Jul 16, 2024 | — |
| 144 | Notice of proposed sale | Jul 16, 2024 | — |
| 144 | Notice of proposed sale | Jul 16, 2024 | — |
| 4 | Insider transaction | Jun 6, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 6, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 6, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 6, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | May 10, 2024 | May 9, 2024 |
| 144 | Notice of proposed sale | May 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 10, 2024 | — |
| 4 | Insider transaction | Mar 14, 2024 | Mar 13, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 4, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 4, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 4, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Feb 29, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| 5 | Annual insider ownership | Feb 13, 2024 | Dec 31, 2023 |
| 5 | Annual insider ownership | Jan 29, 2024 | Dec 31, 2023 |
| SC 13G | Ownership over 5% (passive) | Jan 29, 2024 | — |
| 4 | Insider transaction | Nov 6, 2023 | Nov 3, 2023 |
| 4 | Insider transaction | Nov 6, 2023 | Nov 3, 2023 |
| 144 | Notice of proposed sale | Nov 3, 2023 | — |
| 144 | Notice of proposed sale | Nov 3, 2023 | — |
| 4 | Insider transaction | Oct 23, 2023 | Oct 19, 2023 |
| 4 | Insider transaction | Oct 23, 2023 | Oct 19, 2023 |
| 144 | Notice of proposed sale | Oct 19, 2023 | — |
| 144 | Notice of proposed sale | Oct 19, 2023 | — |
| 4 | Insider transaction | Sep 15, 2023 | Sep 13, 2023 |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 144 | Notice of proposed sale | Sep 12, 2023 | — |
| 144 | Notice of proposed sale | Sep 12, 2023 | — |
| 4 | Insider transaction | Sep 7, 2023 | Sep 5, 2023 |
| 144 | Notice of proposed sale | Sep 5, 2023 | — |
| 4 | Insider transaction | Jul 25, 2023 | Jul 21, 2023 |
| 144 | Notice of proposed sale | Jul 21, 2023 | — |
| 4 | Insider transaction | Jul 20, 2023 | Jul 18, 2023 |
| 144 | Notice of proposed sale | Jul 19, 2023 | — |
| 4 | Insider transaction | Jul 17, 2023 | Jul 13, 2023 |
| 144 | Notice of proposed sale | Jul 14, 2023 | — |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 5, 2023 |
| 144 | Notice of proposed sale | Jun 5, 2023 | — |
| 4 | Insider transaction | Mar 9, 2023 | Mar 8, 2023 |
| 4 | Insider transaction | Mar 9, 2023 | Mar 7, 2023 |
| 4 | Insider transaction | Mar 9, 2023 | Mar 7, 2023 |
| 4 | Insider transaction | Mar 9, 2023 | Mar 7, 2023 |
| 4 | Insider transaction | Mar 9, 2023 | Mar 7, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| 4 | Insider transaction | Jun 9, 2022 | Jun 9, 2022 |
| 4 | Insider transaction | Jun 9, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 9, 2022 | Jun 9, 2022 |
| 4 | Insider transaction | Jun 9, 2022 | Jun 9, 2022 |
| 4 | Insider transaction | Mar 15, 2022 | Mar 11, 2022 |
| 4 | Insider transaction | Mar 15, 2022 | Mar 11, 2022 |
| 4 | Insider transaction | Mar 15, 2022 | Mar 11, 2022 |
| 4 | Insider transaction | Mar 15, 2022 | Mar 11, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| 4 | Insider transaction | Jan 28, 2022 | Jan 27, 2022 |
| 4 | Insider transaction | Jan 28, 2022 | Jan 27, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2022 | — |
| 4 | Insider transaction | Jan 13, 2022 | Jan 12, 2022 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | Mar 24, 2021 | Mar 23, 2021 |
| 4 | Insider transaction | Mar 19, 2021 | Mar 18, 2021 |
| 4 | Insider transaction | Mar 15, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 15, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 15, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 15, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 5, 2021 | Mar 4, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 6, 2021 | — |
| 4 | Insider transaction | Sep 2, 2020 | Sep 1, 2020 |
| 4/A | Form 4/a submission | Aug 31, 2020 | Nov 13, 2019 |
| 4/A | Form 4/a submission | Aug 31, 2020 | Jun 11, 2019 |
| 3/A | Form 3/a submission | Aug 31, 2020 | Jun 11, 2019 |
| 4 | Insider transaction | Aug 14, 2020 | Aug 13, 2020 |
| 4 | Insider transaction | Aug 12, 2020 | Aug 10, 2020 |
| 4 | Insider transaction | Aug 12, 2020 | Aug 10, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 10, 2020 | — |
| 4 | Insider transaction | Jun 11, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| 4 | Insider transaction | Jun 10, 2020 | Jun 9, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 9, 2020 | — |
| 4 | Insider transaction | Mar 24, 2020 | Mar 23, 2020 |
| 4 | Insider transaction | Mar 19, 2020 | Mar 18, 2020 |
| 4 | Insider transaction | Mar 11, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 11, 2020 | Mar 11, 2020 |
| 4 | Insider transaction | Mar 10, 2020 | Mar 9, 2020 |
| 4 | Insider transaction | Mar 9, 2020 | Mar 6, 2020 |
| 4 | Insider transaction | Mar 6, 2020 | Mar 5, 2020 |
| 4 | Insider transaction | Mar 6, 2020 | Mar 5, 2020 |
| 4 | Insider transaction | Mar 6, 2020 | Mar 5, 2020 |
| 4 | Insider transaction | Mar 6, 2020 | Mar 4, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 31, 2020 | — |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Deep Sea Foreign Transportation of Freight (SIC 4412)
- Listed as
- SMHI (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Houston, TX
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1690334
Other Deep Sea Foreign Transportation of Freight companies
- Frontline plc FRO
- Cmb.tech NV CMBT
- Scorpio Tankers Inc. STNG
- TORM plc TRMD
- DHT Holdings, Inc. DHT
- Okeanis Eco Tankers Corp. ECO
- ZIM Integrated Shipping Services Ltd. ZIM
- Star Bulk Carriers Corp. SBLK
Source: SEC EDGAR filings. This is company-reported data, not investment advice.