Seanergy Maritime Holdings Corp. SEC filings SHIP
Seanergy Maritime Holdings Corp. has 683 filings in SEC EDGAR's recent list, going back to Nov 3, 2008. Its latest annual report, Form 20-F, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Oct 2, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 7, 2026 | Oct 5, 2026 |
| 6-K | Current report (foreign issuer) | Oct 2, 2026 | Oct 2, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Sep 21, 2026 | — |
| 4 | Insider transaction | Aug 7, 2026 | Aug 6, 2026 |
| 6-K | Current report (foreign issuer) | Aug 6, 2026 | Jun 30, 2026 |
| 144 | Notice of proposed sale | Aug 6, 2026 | — |
| 4 | Insider transaction | Jul 15, 2026 | Jul 13, 2026 |
| 6-K | Current report (foreign issuer) | Jul 8, 2026 | Jul 8, 2026 |
| 6-K | Current report (foreign issuer) | Jul 1, 2026 | Jul 1, 2026 |
| 6-K | Current report (foreign issuer) | May 29, 2026 | May 29, 2026 |
| 4 | Insider transaction | Apr 8, 2026 | Apr 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 8, 2026 | — |
| 6-K | Current report (foreign issuer) | Apr 1, 2026 | Apr 1, 2026 |
| 20-F | Annual report (foreign issuer) | Mar 31, 2026 | Dec 31, 2025 |
| 8-A12B/A | Filing | Mar 31, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 31, 2026 | — |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 6-K | Current report (foreign issuer) | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 16, 2026 | — |
| 144 | Notice of proposed sale | Feb 24, 2026 | — |
| 6-K | Current report (foreign issuer) | Feb 19, 2026 | Feb 19, 2026 |
| 144 | Notice of proposed sale | Dec 8, 2025 | — |
| 144 | Notice of proposed sale | Dec 2, 2025 | — |
| 6-K | Current report (foreign issuer) | Nov 14, 2025 | Nov 14, 2025 |
| 6-K | Current report (foreign issuer) | Nov 3, 2025 | Nov 3, 2025 |
| 144 | Notice of proposed sale | Oct 10, 2025 | — |
| 6-K | Current report (foreign issuer) | Oct 6, 2025 | Oct 3, 2025 |
| 6-K | Current report (foreign issuer) | Sep 25, 2025 | Sep 25, 2025 |
| 144 | Notice of proposed sale | Sep 23, 2025 | — |
| 144 | Notice of proposed sale | Aug 27, 2025 | — |
| 6-K | Current report (foreign issuer) | Aug 7, 2025 | Jun 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 4, 2025 | — |
| 6-K | Current report (foreign issuer) | May 30, 2025 | May 30, 2025 |
| 144 | Notice of proposed sale | Apr 28, 2025 | — |
| 6-K | Current report (foreign issuer) | Mar 28, 2025 | Mar 28, 2025 |
| 6-K | Current report (foreign issuer) | Mar 28, 2025 | Mar 28, 2025 |
| 20-F | Annual report (foreign issuer) | Mar 21, 2025 | Dec 31, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 13, 2025 | — |
| 6-K | Current report (foreign issuer) | Mar 7, 2025 | Mar 7, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 28, 2025 | — |
| 6-K | Current report (foreign issuer) | Jan 29, 2025 | Jan 29, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 8, 2025 | — |
| 144 | Notice of proposed sale | Dec 4, 2024 | — |
| 144 | Notice of proposed sale | Nov 29, 2024 | — |
| 6-K | Current report (foreign issuer) | Nov 6, 2024 | Nov 6, 2024 |
| 6-K | Current report (foreign issuer) | Nov 4, 2024 | Nov 4, 2024 |
| 6-K | Current report (foreign issuer) | Oct 29, 2024 | Oct 29, 2024 |
| 6-K | Current report (foreign issuer) | Oct 15, 2024 | Oct 15, 2024 |
| 6-K | Current report (foreign issuer) | Oct 15, 2024 | Oct 15, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 15, 2024 | — |
| 6-K | Current report (foreign issuer) | Oct 15, 2024 | Oct 15, 2024 |
| 6-K | Current report (foreign issuer) | Oct 8, 2024 | Oct 8, 2024 |
| 6-K | Current report (foreign issuer) | Sep 30, 2024 | Sep 30, 2024 |
| 6-K | Current report (foreign issuer) | Sep 30, 2024 | Sep 30, 2024 |
| SC 13G | Ownership over 5% (passive) | Aug 9, 2024 | — |
| 6-K | Current report (foreign issuer) | Aug 9, 2024 | Jun 30, 2024 |
| EFFECT | Filing | Aug 8, 2024 | — |
| CORRESP | Letter to the SEC | Aug 6, 2024 | — |
| F-3/A | F-3a | Jul 30, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 22, 2024 | — |
| F-3 | Shelf registration (foreign issuer) | Jul 12, 2024 | — |
| 6-K | Current report (foreign issuer) | Jun 14, 2024 | Jun 14, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 3, 2024 | — |
| 6-K | Current report (foreign issuer) | May 31, 2024 | May 31, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | May 31, 2024 | — |
| 6-K | Current report (foreign issuer) | May 17, 2024 | May 17, 2024 |
| 6-K | Current report (foreign issuer) | Apr 12, 2024 | Apr 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 9, 2024 | — |
| 20-F | Annual report (foreign issuer) | Apr 3, 2024 | Dec 31, 2023 |
| 6-K | Current report (foreign issuer) | Mar 22, 2024 | Mar 22, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 5, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| 6-K | Current report (foreign issuer) | Jan 31, 2024 | Jan 30, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 26, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 10, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 28, 2023 | — |
| 6-K | Current report (foreign issuer) | Dec 15, 2023 | Dec 15, 2023 |
| FWP | Free writing prospectus | Dec 14, 2023 | — |
| 424B5 | Prospectus supplement | Dec 14, 2023 | — |
| 8-A12B/A | Filing | Dec 14, 2023 | — |
| 6-K | Current report (foreign issuer) | Dec 14, 2023 | Dec 13, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 13, 2023 | — |
| 6-K | Current report (foreign issuer) | Dec 5, 2023 | Dec 5, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 5, 2023 | — |
| SC 13D | Ownership over 5% (active) | Nov 24, 2023 | — |
| 6-K | Current report (foreign issuer) | Nov 17, 2023 | Nov 17, 2023 |
| 144 | Notice of proposed sale | Oct 27, 2023 | — |
| 6-K | Current report (foreign issuer) | Sep 29, 2023 | Sep 29, 2023 |
| 6-K | Current report (foreign issuer) | Aug 9, 2023 | Jun 30, 2023 |
| 6-K | Current report (foreign issuer) | Aug 4, 2023 | Aug 4, 2023 |
| 6-K | Current report (foreign issuer) | Jul 6, 2023 | Jul 6, 2023 |
| SC 13G | Ownership over 5% (passive) | Jul 5, 2023 | — |
| 6-K | Current report (foreign issuer) | Jun 2, 2023 | Jun 2, 2023 |
| 6-K | Current report (foreign issuer) | May 19, 2023 | May 19, 2023 |
| 6-K | Current report (foreign issuer) | Apr 6, 2023 | Apr 6, 2023 |
| 20-F | Annual report (foreign issuer) | Mar 31, 2023 | Dec 31, 2022 |
| SC 13D | Ownership over 5% (active) | Mar 31, 2023 | — |
| 6-K | Current report (foreign issuer) | Mar 17, 2023 | Mar 17, 2023 |
| 6-K | Current report (foreign issuer) | Feb 15, 2023 | Feb 15, 2023 |
| 6-K | Current report (foreign issuer) | Feb 10, 2023 | Feb 10, 2023 |
| 6-K | Current report (foreign issuer) | Jan 20, 2023 | Jan 20, 2023 |
| SC TO-I/A | Filing | Jan 20, 2023 | — |
| SC TO-I/A | Filing | Jan 11, 2023 | — |
| 6-K | Current report (foreign issuer) | Jan 6, 2023 | Jan 6, 2023 |
| SC TO-I/A | Filing | Dec 9, 2022 | — |
| 6-K | Current report (foreign issuer) | Dec 5, 2022 | Dec 5, 2022 |
| SC TO-I/A | Filing | Dec 1, 2022 | — |
| SC TO-I | Filing | Nov 30, 2022 | — |
| SC TO-C | Filing | Nov 29, 2022 | — |
| 6-K | Current report (foreign issuer) | Nov 15, 2022 | Nov 15, 2022 |
| 6-K | Current report (foreign issuer) | Oct 13, 2022 | Oct 13, 2022 |
| 6-K | Current report (foreign issuer) | Oct 7, 2022 | Oct 7, 2022 |
| 6-K | Current report (foreign issuer) | Aug 12, 2022 | Aug 12, 2022 |
| 6-K | Current report (foreign issuer) | Aug 5, 2022 | Jun 30, 2022 |
| 6-K | Current report (foreign issuer) | Aug 2, 2022 | Aug 1, 2022 |
| 6-K | Current report (foreign issuer) | Jul 7, 2022 | Jul 7, 2022 |
| 6-K | Current report (foreign issuer) | Jul 1, 2022 | Jul 1, 2022 |
| 6-K | Current report (foreign issuer) | Jun 24, 2022 | Jun 24, 2022 |
| 6-K | Current report (foreign issuer) | Jun 24, 2022 | Jun 24, 2022 |
| 6-K | Current report (foreign issuer) | Jun 17, 2022 | Jun 17, 2022 |
| 6-K | Current report (foreign issuer) | Jun 3, 2022 | Jun 3, 2022 |
| 25-NSE | Delisting notice | May 12, 2022 | — |
| 20-F | Annual report (foreign issuer) | Mar 31, 2022 | Dec 31, 2021 |
| 6-K | Current report (foreign issuer) | Mar 18, 2022 | Mar 18, 2022 |
| 6-K | Current report (foreign issuer) | Mar 11, 2022 | Mar 11, 2022 |
| 6-K | Current report (foreign issuer) | Mar 3, 2022 | Mar 2, 2022 |
| 6-K | Current report (foreign issuer) | Feb 17, 2022 | Feb 17, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 9, 2022 | — |
| 6-K | Current report (foreign issuer) | Feb 1, 2022 | Feb 1, 2022 |
| 6-K | Current report (foreign issuer) | Feb 1, 2022 | Feb 1, 2022 |
| 6-K | Current report (foreign issuer) | Jan 21, 2022 | Jan 21, 2022 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 14, 2022 | — |
| 6-K | Current report (foreign issuer) | Dec 23, 2021 | Dec 23, 2021 |
| 6-K | Current report (foreign issuer) | Dec 10, 2021 | Dec 10, 2021 |
| 25-NSE | Delisting notice | Dec 9, 2021 | — |
| 6-K | Current report (foreign issuer) | Nov 5, 2021 | Nov 2, 2021 |
| 6-K | Current report (foreign issuer) | Oct 29, 2021 | Oct 29, 2021 |
| 6-K | Current report (foreign issuer) | Sep 24, 2021 | Sep 22, 2021 |
| 6-K | Current report (foreign issuer) | Sep 15, 2021 | Sep 15, 2021 |
| 6-K | Current report (foreign issuer) | Aug 12, 2021 | Aug 12, 2021 |
| 6-K | Current report (foreign issuer) | Aug 5, 2021 | Jun 30, 2021 |
| 6-K | Current report (foreign issuer) | Jul 30, 2021 | Jul 30, 2021 |
| 6-K | Current report (foreign issuer) | Jul 14, 2021 | Jul 14, 2021 |
| EFFECT | Filing | Jul 13, 2021 | — |
| CORRESP | Letter to the SEC | Jul 9, 2021 | — |
| UPLOAD | Letter from the SEC | Jul 8, 2021 | — |
| F-3 | Shelf registration (foreign issuer) | Jul 2, 2021 | — |
| 8-A12B | Form 8-a12b | Jul 2, 2021 | — |
| 6-K | Current report (foreign issuer) | Jul 2, 2021 | Jul 2, 2021 |
| 6-K | Current report (foreign issuer) | Jun 21, 2021 | Jun 21, 2021 |
| 6-K | Current report (foreign issuer) | May 28, 2021 | May 27, 2021 |
| 6-K | Current report (foreign issuer) | May 21, 2021 | May 21, 2021 |
| 6-K | Current report (foreign issuer) | May 14, 2021 | May 14, 2021 |
| EFFECT | Filing | Apr 23, 2021 | — |
| 6-K | Current report (foreign issuer) | Apr 19, 2021 | Apr 16, 2021 |
| POS AM | Filing | Apr 16, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 14, 2021 | — |
| 20-F | Annual report (foreign issuer) | Mar 31, 2021 | Dec 31, 2020 |
| 6-K | Current report (foreign issuer) | Mar 31, 2021 | Mar 30, 2021 |
| 424B3 | Prospectus | Mar 24, 2021 | — |
| 6-K | Current report (foreign issuer) | Mar 24, 2021 | Mar 24, 2021 |
| 6-K | Current report (foreign issuer) | Mar 19, 2021 | Mar 19, 2021 |
| EFFECT | Filing | Mar 12, 2021 | — |
| CORRESP | Letter to the SEC | Mar 10, 2021 | — |
| F-1/A | Form f-1/a | Mar 5, 2021 | — |
| 6-K | Current report (foreign issuer) | Mar 5, 2021 | Mar 5, 2021 |
| UPLOAD | Letter from the SEC | Mar 1, 2021 | — |
| 6-K | Current report (foreign issuer) | Feb 22, 2021 | Feb 19, 2021 |
| F-1 | Registration statement (foreign issuer) | Feb 22, 2021 | — |
| 424B5 | Prospectus supplement | Feb 19, 2021 | — |
| 6-K | Current report (foreign issuer) | Feb 19, 2021 | Feb 19, 2021 |
| FWP | Free writing prospectus | Feb 17, 2021 | — |
| 6-K | Current report (foreign issuer) | Feb 16, 2021 | Feb 16, 2021 |
| 6-K | Current report (foreign issuer) | Feb 12, 2021 | Feb 12, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| 6-K | Current report (foreign issuer) | Feb 9, 2021 | Feb 9, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 8, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 26, 2021 | — |
| 6-K | Current report (foreign issuer) | Jan 15, 2021 | Jan 13, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 5, 2021 | — |
| 6-K | Current report (foreign issuer) | Nov 20, 2020 | Nov 20, 2020 |
| 6-K | Current report (foreign issuer) | Oct 2, 2020 | Oct 2, 2020 |
| 6-K | Current report (foreign issuer) | Sep 29, 2020 | Sep 29, 2020 |
| 6-K | Current report (foreign issuer) | Sep 25, 2020 | Sep 25, 2020 |
| 6-K | Current report (foreign issuer) | Sep 11, 2020 | Sep 11, 2020 |
| SC 13G | Ownership over 5% (passive) | Aug 31, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Aug 20, 2020 | — |
| 424B5 | Prospectus supplement | Aug 20, 2020 | — |
| 6-K | Current report (foreign issuer) | Aug 19, 2020 | Aug 18, 2020 |
| 424B5 | Prospectus supplement | Aug 17, 2020 | — |
| 6-K | Current report (foreign issuer) | Aug 12, 2020 | Aug 12, 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
- SHIP (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Marshall Islands
- Headquarters
- Athens
- SEC filer status
- Accelerated filer
- SEC CIK
- 1448397
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.