Tsakos Energy Navigation Ltd SEC filings TEN
Tsakos Energy Navigation Ltd has 455 filings in SEC EDGAR's recent list, going back to Feb 5, 2002. Its latest annual report, Form 20-F, was filed on Apr 6, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Sep 17, 2026.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 14, 2026 | Oct 12, 2026 |
| 144 | Notice of proposed sale | Oct 13, 2026 | — |
| 4 | Insider transaction | Sep 22, 2026 | Sep 18, 2026 |
| 144/A | Filing | Sep 21, 2026 | — |
| 144 | Notice of proposed sale | Sep 18, 2026 | — |
| 6-K | Current report (foreign issuer) | Sep 17, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 13, 2026 |
| 144 | Notice of proposed sale | Aug 14, 2026 | — |
| 4 | Insider transaction | Jul 16, 2026 | Jul 14, 2026 |
| 144 | Notice of proposed sale | Jul 14, 2026 | — |
| 4 | Insider transaction | Jul 10, 2026 | Jul 8, 2026 |
| F-3ASR | Filing | Jul 2, 2026 | — |
| 6-K | Current report (foreign issuer) | May 22, 2026 | May 22, 2026 |
| 4 | Insider transaction | Apr 30, 2026 | Apr 28, 2026 |
| 6-K | Current report (foreign issuer) | Apr 17, 2026 | Apr 17, 2026 |
| 20-F | Annual report (foreign issuer) | Apr 6, 2026 | Dec 31, 2025 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 6-K | Current report (foreign issuer) | Mar 6, 2026 | Mar 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 6-K | Current report (foreign issuer) | Nov 21, 2025 | Nov 21, 2025 |
| 6-K | Current report (foreign issuer) | Oct 30, 2025 | Oct 30, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 21, 2025 | — |
| 6-K | Current report (foreign issuer) | Sep 30, 2025 | Jun 30, 2025 |
| 6-K | Current report (foreign issuer) | Jun 25, 2025 | Jun 25, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 16, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 16, 2025 | — |
| 6-K | Current report (foreign issuer) | Apr 30, 2025 | Apr 30, 2025 |
| 20-F | Annual report (foreign issuer) | Apr 11, 2025 | Dec 31, 2024 |
| 6-K | Current report (foreign issuer) | Dec 3, 2024 | Dec 3, 2024 |
| 6-K | Current report (foreign issuer) | Oct 8, 2024 | Jun 30, 2024 |
| 6-K | Current report (foreign issuer) | Jun 24, 2024 | Jun 24, 2024 |
| 6-K | Current report (foreign issuer) | Jun 14, 2024 | Jun 14, 2024 |
| 6-K | Current report (foreign issuer) | May 3, 2024 | May 3, 2024 |
| S-8 | Employee stock plan registration | May 1, 2024 | — |
| 20-F | Annual report (foreign issuer) | Apr 19, 2024 | Dec 31, 2023 |
| 6-K | Current report (foreign issuer) | Nov 24, 2023 | Nov 24, 2023 |
| 6-K | Current report (foreign issuer) | Sep 21, 2023 | Jun 30, 2023 |
| EFFECT | Filing | Aug 16, 2023 | — |
| CORRESP | Letter to the SEC | Aug 14, 2023 | — |
| UPLOAD | Letter from the SEC | Aug 11, 2023 | — |
| F-3 | Shelf registration (foreign issuer) | Aug 4, 2023 | — |
| 6-K | Current report (foreign issuer) | Aug 4, 2023 | Aug 4, 2023 |
| 25-NSE | Delisting notice | Jul 7, 2023 | — |
| 6-K | Current report (foreign issuer) | Jul 6, 2023 | Jul 6, 2023 |
| 6-K | Current report (foreign issuer) | May 31, 2023 | May 31, 2023 |
| 6-K | Current report (foreign issuer) | May 9, 2023 | May 9, 2023 |
| 6-K | Current report (foreign issuer) | May 5, 2023 | May 5, 2023 |
| 6-K | Current report (foreign issuer) | Apr 12, 2023 | Apr 12, 2023 |
| 20-F | Annual report (foreign issuer) | Apr 6, 2023 | Dec 31, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| 6-K | Current report (foreign issuer) | Feb 8, 2023 | Feb 8, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 31, 2023 | — |
| 6-K | Current report (foreign issuer) | Jan 3, 2023 | Jan 3, 2023 |
| 6-K | Current report (foreign issuer) | Nov 23, 2022 | Nov 23, 2022 |
| 6-K | Current report (foreign issuer) | Nov 9, 2022 | Nov 9, 2022 |
| 6-K | Current report (foreign issuer) | Oct 6, 2022 | Oct 6, 2022 |
| 6-K | Current report (foreign issuer) | Sep 30, 2022 | Jun 30, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 29, 2022 | — |
| 6-K | Current report (foreign issuer) | Sep 14, 2022 | Sep 14, 2022 |
| 6-K | Current report (foreign issuer) | Aug 9, 2022 | Aug 9, 2022 |
| 6-K | Current report (foreign issuer) | Jul 8, 2022 | Jul 8, 2022 |
| 6-K | Current report (foreign issuer) | Jul 7, 2022 | Jul 7, 2022 |
| 6-K | Current report (foreign issuer) | Jul 1, 2022 | Jul 1, 2022 |
| SC 13D/A | Amended ownership over 5% (active) | May 23, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 23, 2022 | — |
| 6-K | Current report (foreign issuer) | May 10, 2022 | May 9, 2022 |
| 6-K | Current report (foreign issuer) | May 9, 2022 | May 9, 2022 |
| 20-F | Annual report (foreign issuer) | Apr 28, 2022 | Dec 31, 2021 |
| 6-K | Current report (foreign issuer) | Apr 7, 2022 | Apr 7, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| 6-K | Current report (foreign issuer) | Feb 9, 2022 | Feb 9, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 21, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 14, 2022 | — |
| 6-K | Current report (foreign issuer) | Jan 11, 2022 | Jan 11, 2022 |
| 6-K | Current report (foreign issuer) | Dec 17, 2021 | Dec 17, 2021 |
| SC 13G | Ownership over 5% (passive) | Nov 12, 2021 | — |
| 6-K | Current report (foreign issuer) | Nov 5, 2021 | Nov 5, 2021 |
| 6-K | Current report (foreign issuer) | Oct 29, 2021 | Oct 29, 2021 |
| 424B5 | Prospectus supplement | Oct 29, 2021 | — |
| 6-K/A | Filing | Oct 27, 2021 | Oct 27, 2021 |
| 6-K | Current report (foreign issuer) | Oct 26, 2021 | Jun 30, 2021 |
| 6-K | Current report (foreign issuer) | Oct 8, 2021 | Oct 8, 2021 |
| 6-K | Current report (foreign issuer) | Aug 6, 2021 | Aug 6, 2021 |
| 6-K | Current report (foreign issuer) | Jul 8, 2021 | Jul 8, 2021 |
| 6-K/A | Filing | Jul 8, 2021 | Jul 8, 2021 |
| 6-K | Current report (foreign issuer) | Jul 2, 2021 | Jul 2, 2021 |
| 6-K | Current report (foreign issuer) | May 14, 2021 | May 14, 2021 |
| 6-K | Current report (foreign issuer) | May 11, 2021 | May 11, 2021 |
| 6-K | Current report (foreign issuer) | May 5, 2021 | May 5, 2021 |
| 424B5 | Prospectus supplement | May 5, 2021 | — |
| 20-F | Annual report (foreign issuer) | Apr 16, 2021 | Dec 31, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2021 | — |
| 6-K | Current report (foreign issuer) | Dec 4, 2020 | Dec 4, 2020 |
| 25-NSE | Delisting notice | Oct 30, 2020 | — |
| 6-K | Current report (foreign issuer) | Oct 9, 2020 | Jun 30, 2020 |
| EFFECT | Filing | Aug 7, 2020 | — |
| UPLOAD | Letter from the SEC | Aug 5, 2020 | — |
| CORRESP | Letter to the SEC | Aug 5, 2020 | — |
| F-3 | Shelf registration (foreign issuer) | Jul 31, 2020 | — |
| 6-K | Current report (foreign issuer) | Jul 31, 2020 | Jul 30, 2020 |
| 6-K | Current report (foreign issuer) | Jul 7, 2020 | Jul 7, 2020 |
| 6-K | Current report (foreign issuer) | May 7, 2020 | May 7, 2020 |
| 6-K | Current report (foreign issuer) | Apr 23, 2020 | Apr 23, 2020 |
| 20-F | Annual report (foreign issuer) | Apr 14, 2020 | Dec 31, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| EFFECT | Filing | Oct 29, 2019 | — |
| 424B3 | Prospectus | Oct 29, 2019 | — |
| CORRESP | Letter to the SEC | Oct 25, 2019 | — |
| UPLOAD | Letter from the SEC | Oct 25, 2019 | — |
| F-3 | Shelf registration (foreign issuer) | Oct 21, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 21, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Oct 15, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Sep 27, 2019 | — |
| 6-K | Current report (foreign issuer) | Sep 27, 2019 | Sep 27, 2019 |
| 6-K | Current report (foreign issuer) | Sep 23, 2019 | Sep 23, 2019 |
| 6-K | Current report (foreign issuer) | Sep 20, 2019 | Sep 20, 2019 |
| UPLOAD | Letter from the SEC | Aug 6, 2019 | — |
| 25-NSE | Delisting notice | Jul 30, 2019 | — |
| CORRESP | Letter to the SEC | Jul 19, 2019 | — |
| UPLOAD | Letter from the SEC | Jul 15, 2019 | — |
| 6-K | Current report (foreign issuer) | Jun 28, 2019 | Jun 28, 2019 |
| 6-K | Current report (foreign issuer) | Jun 19, 2019 | Jun 19, 2019 |
| 6-K | Current report (foreign issuer) | Apr 19, 2019 | Apr 19, 2019 |
| 20-F | Annual report (foreign issuer) | Apr 12, 2019 | Dec 31, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2019 | — |
| 6-K | Current report (foreign issuer) | Oct 5, 2018 | Oct 5, 2018 |
| CERT | Nyse certification - tsakos energy navigation ltd | Jun 28, 2018 | — |
| 6-K | Current report (foreign issuer) | Jun 28, 2018 | Jun 28, 2018 |
| 8-A12B | Form 8-a12b | Jun 27, 2018 | — |
| 424B5 | Prospectus supplement | Jun 25, 2018 | — |
| FWP | Free writing prospectus | Jun 21, 2018 | — |
| 424B5 | Prospectus supplement | Jun 21, 2018 | — |
| 6-K | Current report (foreign issuer) | Jun 18, 2018 | Jun 18, 2018 |
| 20-F | Annual report (foreign issuer) | Apr 27, 2018 | Dec 31, 2017 |
| 6-K | Current report (foreign issuer) | Apr 12, 2018 | Apr 12, 2018 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 12, 2018 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 12, 2018 | — |
| 6-K | Current report (foreign issuer) | Apr 5, 2018 | Apr 4, 2018 |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Dec 11, 2017 | — |
| 424B5 | Prospectus supplement | Oct 18, 2017 | — |
| 6-K | Current report (foreign issuer) | Oct 2, 2017 | Oct 2, 2017 |
| EFFECT | Filing | Aug 31, 2017 | — |
| CORRESP | Letter to the SEC | Aug 29, 2017 | — |
| UPLOAD | Letter from the SEC | Aug 3, 2017 | — |
| F-3 | Shelf registration (foreign issuer) | Jul 28, 2017 | — |
| 6-K | Current report (foreign issuer) | Jun 2, 2017 | Jun 2, 2017 |
| 6-K | Current report (foreign issuer) | May 5, 2017 | May 5, 2017 |
| 20-F | Annual report (foreign issuer) | Apr 28, 2017 | Dec 31, 2016 |
| CERTNYS | Auto-generated paper document | Apr 6, 2017 | — |
| 6-K | Current report (foreign issuer) | Apr 5, 2017 | Apr 5, 2017 |
| 8-A12B | Form 8-a12b | Apr 4, 2017 | — |
| 424B5 | Prospectus supplement | Mar 31, 2017 | — |
| FWP | Free writing prospectus | Mar 29, 2017 | — |
| 424B5 | Prospectus supplement | Mar 29, 2017 | — |
| 6-K | Current report (foreign issuer) | Mar 28, 2017 | Mar 28, 2017 |
| 6-K | Current report (foreign issuer) | Jan 31, 2017 | Jan 31, 2017 |
| 424B5 | Prospectus supplement | Jan 31, 2017 | — |
| 6-K | Current report (foreign issuer) | Jan 31, 2017 | Jan 31, 2017 |
| 6-K | Current report (foreign issuer) | Nov 2, 2016 | Nov 2, 2016 |
| 6-K | Current report (foreign issuer) | Jun 17, 2016 | Jun 17, 2016 |
| 6-K | Current report (foreign issuer) | May 26, 2016 | May 25, 2016 |
| 6-K | Current report (foreign issuer) | Apr 11, 2016 | Apr 11, 2016 |
| 20-F | Annual report (foreign issuer) | Apr 6, 2016 | Dec 31, 2015 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 5, 2016 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 5, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2016 | — |
| 6-K | Current report (foreign issuer) | Dec 9, 2015 | Dec 9, 2015 |
| 8-A12B/A | Filing | Oct 26, 2015 | — |
| 8-A12B/A | Filing | Oct 26, 2015 | — |
| 25-NSE | Delisting notice | Oct 26, 2015 | — |
| EFFECT | Filing | Sep 18, 2015 | — |
| 424B3 | Prospectus | Sep 18, 2015 | — |
| CORRESP | Letter to the SEC | Sep 16, 2015 | — |
| UPLOAD | Letter from the SEC | Sep 15, 2015 | — |
| F-3 | Shelf registration (foreign issuer) | Sep 9, 2015 | — |
| 6-K | Current report (foreign issuer) | Sep 9, 2015 | Sep 9, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 10, 2015 | — |
| 6-K | Current report (foreign issuer) | Jun 23, 2015 | Jun 23, 2015 |
| CERTNYS | Auto-generated paper document | Apr 30, 2015 | — |
| CERTNYS | Auto-generated paper document | Apr 30, 2015 | — |
| 6-K | Current report (foreign issuer) | Apr 29, 2015 | Apr 29, 2015 |
| 8-A12B | Form 8-a12b | Apr 24, 2015 | — |
| 424B5 | Prospectus supplement | Apr 24, 2015 | — |
| FWP | Free writing prospectus | Apr 23, 2015 | — |
| 424B5 | Prospectus supplement | Apr 22, 2015 | — |
| 6-K | Current report (foreign issuer) | Apr 17, 2015 | Apr 17, 2015 |
| 20-F | Annual report (foreign issuer) | Apr 8, 2015 | Dec 31, 2014 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Deep Sea Foreign Transportation of Freight (SIC 4412)
- Listed as
- TEN (NYSE), TEN-PE (NYSE), TEN-PF (NYSE)
- Incorporated in
- Greece
- Headquarters
- Athens
- SEC filer status
- Accelerated filer
- SEC CIK
- 1166663
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.