Tsakos Energy Navigation Ltd
TEN- Exchange
- NYSE
- Industry
- Deep Sea Foreign Transportation of Freight
- SEC CIK
- 0001166663
In the last 90 days, Tsakos Energy Navigation Ltd insiders filed 0 open-market purchases and 3 sales; 112 institutions reported holding it in 13F filings for Q2 2026, worth $360.7M in total; no superinvestor holds it.
Holders of 5% or more of TEN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Tsakos Energy Navigation Ltd, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Sea Consolidation S A of Panama | 13D/A | 16.70%5.02M shares | – | May 16, 20251 filing | May 16, 2025 | SEC |
| Tsakos Holdings Foundation | 13D/A | 10.70%3.22M shares | – | May 16, 20251 filing | May 16, 2025 | SEC |
| CastleKnight Master Fund LP | 13G | 7.50%2.25M shares | New | Oct 21, 20251 filing | Oct 21, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
3 Schedule 13D and 13G filings on Tsakos Energy Navigation Ltd, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Oct 21, 20256:18 PM ET | CastleKnight Master Fund LPand 5 others | 13G | 7.50%2.25M shares | New | Oct 14, 2025 | SEC |
| May 16, 20259:23 PM ET | Tsakos Holdings Foundationand 2 others | 13D/A | 10.70%3.22M shares | – | May 16, 2025 | SEC |
| May 16, 20259:17 PM ET | Sea Consolidation S A of Panamaand 5 others | 13D/A | 16.70%5.02M shares | – | Nov 27, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Tsakos Energy Navigation Ltd shares.
No Form 144 notices for Tsakos Energy Navigation Ltd are on file.