As of November 6, 2026, Seanergy Maritime Holdings Corp. is a publicly traded company (Nasdaq: SHIP). The largest holder reporting an active stake on Schedule 13D is Stamatios Tsantanis, the chief executive and a director, at 9.62%. No bankruptcy or receivership appears in its SEC Form 8-K filings (Schedule 13D/A, March 31, 2026).
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Is Seanergy Maritime Holdings Corp. a real, registered company?
- Seanergy Maritime Holdings Corp. files with the SEC under CIK 1448397 (its SEC filings).
- Its shares are listed under the ticker SHIP on Nasdaq (SEC company record).
- Incorporated in 1T, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Seanergy Maritime Holdings Corp. in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Konstantakopoulos Konstantinos (filed 2026-04-08).
Who are Seanergy Maritime Holdings Corp.'s owners and officers?
Seanergy Maritime Holdings Corp.: industry Deep Sea Foreign Transportation of Freight (Schedule 13G/A, 2026-09-21).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-09-21 | Konstantakopoulos Konstantinos | 4.9% |
| Schedule 13G/A, 2026-04-08 | Konstantakopoulos Konstantinos | 10.2% |
| Schedule 13D/A, 2026-03-31 | Tsantanis Stamatios | 9.62% |
| Schedule 13D/A, 2026-03-16 | George Economou | 8.8% |
| Schedule 13G/A, 2025-08-04 | Konstantakopoulos Konstantinos | 13.2% |
Questions about who owns Seanergy Maritime Holdings Corp.
Who owns Seanergy Maritime Holdings Corp.?
On this page, 2 holders' latest ownership filings report 5% or more of Seanergy Maritime Holdings Corp.: Tsantanis Stamatios (9.62%, Schedule 13D/A, filed 2026-03-31) and George Economou (8.8%, Schedule 13D/A, filed 2026-03-16).
Who are the largest shareholders of Seanergy Maritime Holdings Corp.?
By the share each holder's latest filing reports, the largest holders of Seanergy Maritime Holdings Corp. on this page are Tsantanis Stamatios (9.62%) and George Economou (8.8%).
When did Tsantanis Stamatios buy into Seanergy Maritime Holdings Corp.?
The filings give report dates, not purchase dates. The earliest filing from Tsantanis Stamatios on this page is the Schedule 13D/A, filed 2026-03-31, reporting 9.62%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 5 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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What the Full Report on Seanergy Maritime Holdings Corp. covers
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Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
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Which insiders own Seanergy Maritime Holdings Corp. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and a director: 2,084,403 shares (3.1% of shares outstanding) (Form 3, 2026-03-18).
- Stavros Gyftakis: 230,340 shares (0.34% of shares outstanding) (Form 4, 2026-10-07).
- , a director: 178,239 shares (0.26% of shares outstanding) (Form 4, 2026-08-07).
- , a director: 73,333 shares (0.11% of shares outstanding) (Form 3, 2026-03-18).
- , a director: 72,800 shares (0.11% of shares outstanding) (Form 3, 2026-03-18).
Shares outstanding: 68,314,985 as of 2020-12-31, from the company's latest SEC cover page.
How much has Seanergy Maritime Holdings Corp. raised?
No fundraising or offering filing from Seanergy Maritime Holdings Corp. is on file with us.
Keep reading
More on Seanergy Maritime Holdings Corp. and the records around it.
Seanergy Maritime Holdings Corp. elsewhere on the record
- 5%+ stake filings Sep 2026
Companies that share a holder
- Konstantakopoulos Konstantinos also filed stake reports on 1 other company: Costamare Bulkers Holdings Ltd (Oct 2025)
- Sphinx Investment Corp. also filed stake reports on 1 other company: OceanPal Inc. (Sep 2025)
Related pages
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