4 insiders reported 7 Form 4 transactions for TSAKOS ENERGY NAVIGATION LTD (TEN) over the past 18 months (most recent 2026-09-22). Recent activity: Kosmatos Theoharrys Evgenios (CFO and CAO) Sell 10,000 shares, Hatzimichalis Clio (Director) Sell 5,000 shares, Tommasino Nicholas Francis (Director) Sell 2,490 shares, TSAKOS NIKOLAOS (Chief Executive Officer) Sell 500,000 shares, TSAKOS NIKOLAOS (Chief Executive Officer) Buy 500,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-22 | Kosmatos Theoharrys Evgenios | CFO and CAO | Sell | 10,000 | $530,014 |
| 2026-08-17 | Hatzimichalis Clio | Director | Sell | 5,000 | $205,331 |
| 2026-07-16 | Tommasino Nicholas Francis | Director | Sell | 2,490 | $99,762 |
| 2026-07-10 | TSAKOS NIKOLAOS | Chief Executive Officer | Sell | 500,000 | $0 |
| 2026-07-10 | TSAKOS NIKOLAOS | Chief Executive Officer | Buy | 500,000 | $0 |
| 2026-04-30 | TSAKOS NIKOLAOS | Chief Executive Officer | Buy | 12,500 | $499,000 |
| 2026-04-30 | TSAKOS NIKOLAOS | Chief Executive Officer | Buy | 12,500 | $499,375 |
Source: SEC Form 4 filings · as of 2026-09-22