Tsakos Energy Navigation Ltd. (TEN)
NYSE: TEN · Deep Sea Foreign Transportation of Freight · Athens · filing with the SEC since 2002
Who owns Tsakos Energy Navigation Ltd.
As filed with the SECHolders of 5% or more
2
Nikolas P. Tsakos holds 16.7% of Common Shares, par value $5.00 per share, as its SCHEDULE 13D/A filed May 16, 2025 says.
Directors and officers
12
report now, of 12 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
Nikolas P. Tsakos
SCHEDULE 13D/A · filed May 16, 2025 · Common Shares, par value $5.00 per share
Tsakos Holdings Foundation
SCHEDULE 13D/A · filed May 16, 2025 · Common Shares, par value $5.00 per share
CastleKnight Master Fund LP
SCHEDULE 13G/A · filed Feb 17, 2026 · Common Shares, par value $5.00 per share · reported falling below 5%, from 7.5% in Oct 21, 2025
What TEN reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Tsakos Shipmanagement S.A.
An entity · legal entity · owns, named in the 20-F filed Apr 6, 2026
Tsakos Shipping and Trading S.A.
An entity · legal entity, related party · owns, named in the 20-F filed Apr 6, 2026
100 subsidiaries in 4 countries, from the list filed with the 20-F filed Apr 6, 2026.
Insider tradesForm 4
4sales
2purchases
0sales on a scheduled plan
4people selling
$1.1Msold, in dollars
$1.0Mbought, in dollars
Open-market trades on Form 4 from Oct 14, 2025 to Oct 14, 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 14, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 12 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Kosmatos Theoharrys Evgenios | CFO and CAO | 1 | $500,000 | 0 | 0 | $0 |
| Saroglou Georgios | President and COO | 1 | $300,000 | 0 | 0 | $0 |
| Hatzimichalis Clio | director | 1 | $200,000 | 0 | 0 | $0 |
| Tommasino Nicholas Francis | director | 1 | $100,000 | 0 | 0 | $0 |
| Tsakos Nikolaos | Chief Executive Officer | 0 | $0 | 0 | 2 | $1.0M |