Seanergy Maritime Holdings Corp. (SHIP)
Nasdaq: SHIP · Deep Sea Foreign Transportation of Freight · Athens · filing with the SEC since 2008
Who owns Seanergy Maritime Holdings Corp.
As filed with the SECHolders of 5% or more
2
Tsantanis Stamatios holds 9.62% of Common Stock, par value $0.0001 per share, as its SCHEDULE 13D/A filed Mar 31, 2026 says.
Directors and officers
6
report now, of 6 people on the record since 2026. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 2 named at left.
Holders of 5% or moreshare of the class, as filed
Tsantanis Stamatios
SCHEDULE 13D/A · filed Mar 31, 2026 · Common Stock, par value $0.0001 per share · 8.33% in Feb 28, 2025
Sphinx Investment Corp.
SCHEDULE 13D/A · filed Mar 16, 2026 · Common Shares, par value $0.0001 per share
Konstantakopoulos Konstantinos
SCHEDULE 13G/A · filed Sep 21, 2026 · Common Stock, par value $0.0001 per share · reported falling below 5%, from 10.2% in Apr 8, 2026
What SHIP reports owning in othersstakes of 5% or more, and other ties
33 subsidiaries in 2 countries, from the list filed with the 20-F filed Mar 31, 2026.
Insider tradesForm 4
4sales
0purchases
0sales on a scheduled plan
2people selling
$400,000sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 7, 2025 to Oct 7, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 7, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window2 of 6 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Anagnostara Christina | director | 1 | $300,000 | 0 | 0 | $0 |
| Gyftakis Stavros | See Remarks | 3 | $100,000 | 0 | 0 | $0 |