TSAKOS ENERGY NAVIGATION LTD TEN
SHS · Common Stock · CUSIP G9108L173
- SectorIndustrials
- IndustryDeep Sea Foreign Transportation of Freight
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($4.9m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $35.39. Options: 4 managers hold calls ($17.9m notional), 6 hold puts ($12.4m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 63 |
| Q4 2022 | 83 |
| Q1 2023 | 79 |
| Q2 2023 | 78 |
| Q3 2023 | 72 |
| Q4 2023 | 82 |
| Q1 2024 | 89 |
| Q2 2024 | 109 |
| Q3 2024 | 90 |
| Q4 2024 | 72 |
| Q1 2025 | 62 |
| Q2 2025 | 72 |
| Q3 2025 | 80 |
| Q4 2025 | 85 |
| Q1 2026 | 110 |
| Q2 2026 | 112 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 38 | 62 |
| Q4 2024 | 36 | 57 |
| Q1 2025 | 27 | 36 |
| Q2 2025 | 39 | 24 |
| Q3 2025 | 49 | 33 |
| Q4 2025 | 38 | 44 |
| Q1 2026 | 74 | 37 |
| Q2 2026 | 64 | 60 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $9.9m | $11.5m | 1.15 |
| Q4 2025 | $7.8m | $7.9m | 1.01 |
| Q1 2026 | $15.9m | $14.8m | 0.93 |
| Q2 2026 | $17.9m | $12.4m | 0.69 |
Biggest buyers
| ACADIAN ASSET MANAGEMENT LLC | Added | +401.4k |
| TWO SIGMA INVESTMENTS, LP | Added | +337.4k |
| Qube Research & Technologies Ltd | New | +163.0k |
| Point72 Asset Management, L.P. | Added | +121.7k |
| JANE STREET GROUP, LLC | Added | +95.7k |
| JPMORGAN CHASE & CO | Added | +77.4k |
| NAVELLIER & ASSOCIATES INC | Added | +72.3k |
| HRT FINANCIAL LP | Added | +71.1k |
| MORGAN STANLEY | Added | +69.0k |
| PDT Partners, LLC | Added | +68.4k |
Biggest sellers
| COOPER CREEK PARTNERS MANAGEMENT LLC | Sold out | -397.6k |
| Walleye Capital LLC | Reduced | -266.5k |
| Sagil Capital LLP | Sold out | -250.0k |
| D. E. Shaw & Co., Inc. | Reduced | -142.2k |
| Manatuck Hill Partners, LLC | Sold out | -70.0k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -48.7k |
| ExodusPoint Capital Management, LP | Sold out | -39.6k |
| Engineers Gate Manager LP | Reduced | -37.4k |
| GRATIA CAPITAL, LLC | Reduced | -34.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -34.6k |
Biggest calls
| CastleKnight Management LP | New | $7.1m200.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $5.4m151.4k shares |
| JANE STREET GROUP, LLC | Added | $2.9m80.8k shares |
| CITADEL ADVISORS LLC | Reduced | $2.6m74.9k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.2m176.4k shares |
| IMC-Chicago, LLC | Added | $2.3m64.4k shares |
| CITADEL ADVISORS LLC | Reduced | $2.0m55.4k shares |
| JANE STREET GROUP, LLC | Added | $1.0m29.3k shares |
| GROUP ONE TRADING LLC | Added | $512.9k14.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $374.9k10.6k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
SEA CONSOLIDATION S A OF PANAMA
13D · may seek influence
filed 2025-05-16
Stated purposeItem 4 is hereby amended by adding the following paragraphs: Each of Sea Consolidation, Intermed, Methoni, TEM and Nikolas P. Tsakos acquired 115,000 Common Shares, 80,000 Common Shares, 60,000 Common Shares, 40,000 Common Shares and 405,000 Common Shares, respectively, to increase its investment in the Company. Each of Sea Consolidation, Intermed, Methoni, TEM and Nikolas P. Tsakos is holding its Common Shares solely for investment purposes and each has no plans or proposals with respect to any material change in the Company's business or corporate structure or, generally, any other action referred to in instructions (a) through (j) of Item 4 of the form of Schedule 13D. Each of the Reporting Persons reserve the right to change their intentions, as they deem appropriate. Depending on ma… Full filing |
16.7% |
TSAKOS HOLDINGS FOUNDATION
13D · may seek influence
filed 2025-05-16
Stated purposeItem 4 is hereby amended by adding the following paragraph: See the response to Item 3, which is incorporated by reference herein. None of the Reporting Persons has any plans or proposals with respect to any material change in the Company's business or corporate structure or, generally, any other action referred to instructions (a) through (j) of Item 4 of the form of Schedule 13D. Each of the Reporting Persons reserve the right to change their intentions, as they deem appropriate. Depending on market conditions and other factors that they may deem material, each of the Reporting Persons may, in privately negotiated transactions, in the open market or otherwise, purchase additional Common Shares and/or related securities, dispose of all or a portion of the Common Shares or related securit… Full filing |
10.7% |
Fell to 5% or below in the last year: CastleKnight Master Fund LP (4.1%, 2026-02-17)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 1 | $998.4k | 0 | — | — |
| Q3 2026 | 0 | — | 3 | $835.1k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-18 | Kosmatos Theoharrys Evgenios CFO and CAO | Sold | $530.0k10.0k shares |
| 2026-08-13 | Hatzimichalis Clio Director | Sold | $205.3k5.0k shares |
| 2026-07-14 | Tommasino Nicholas Francis Director | Sold | $99.8k2.5k shares |
| 2026-04-29 | TSAKOS NIKOLAOS Chief Executive Officer, director · By Intermed Champion S.A. of Panama | Bought | $499.4k12.5k shares |
| 2026-04-28 | TSAKOS NIKOLAOS Chief Executive Officer, director · By Intermed Champion S.A. of Panama | Bought | $499.0k12.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| ACADIAN ASSET MANAGEMENT LLC 0.04% of their portfolio | 1.0m $36.1m | Added +401.4k |
| CastleKnight Management LP 1.03% of their portfolio | 799.6k $28.3m | Added +203 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 765.1k $27.1m | Reduced -48.7k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 694.4k $24.6m | Added +337.4k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.03% of their portfolio | 634.7k $22.4m | Reduced -26.9k |
| MORGAN STANLEY 0.00% of their portfolio | 508.8k $18.0m | Added +69.0k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 474.9k $16.8m | Added +95.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 472.2k $16.7m | Added +6.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 402.3k $14.2m | Added +18.5k |
| Main Street Financial Solutions, LLC 0.90% of their portfolio | 397.2k $14.1m | Added +605 |
| FOUNDATION RESOURCE MANAGEMENT INC 1.38% of their portfolio | 336.4k $11.9m | Reduced -6.3k |
| TUDOR INVESTMENT CORP ET AL 0.04% of their portfolio | 256.3k $9.1m | Added +29.0k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 203.1k $7.2m | Reduced -142.2k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 201.8k $7.1m | Added +121.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 182.6k $6.5m | Added +77.4k |
| Condire Management, LP 0.66% of their portfolio | 174.9k $6.2m | Reduced -16.1k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 163.0k $5.8m | New |
| HRT FINANCIAL LP 0.01% of their portfolio | 162.8k $5.8m | Added +71.1k |
| UBS Group AG 0.00% of their portfolio | 134.7k $4.8m | Added +33.2k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 123.7k $4.4m | Added +25.5k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 119.8k $4.2m | Reduced -26.2k |
| GROUP ONE TRADING LLC 0.12% of their portfolio | 116.7k $4.1m | Reduced -13.1k |
| Glenorchy Capital Ltd 2.46% of their portfolio | 111.2k $3.9m | Added +162 |
| PDT Partners, LLC 0.18% of their portfolio | 98.0k $3.5m | Added +68.4k |
| NAVELLIER & ASSOCIATES INC 0.27% of their portfolio | 96.6k $3.4m | Added +72.3k |
| SPROTT INC. 0.11% of their portfolio | 92.8k $3.3m | Added +20.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio | 90.9k $3.2m | Reduced -30.7k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 85.4k $3.0m | Added +14.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 84.3k $3.0m | Reduced -8.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 76.6k $2.7m | Reduced -34.6k |
| Susquehanna Portfolio Strategies, LLC 0.04% of their portfolio | 65.9k $2.3m | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 65.7k $2.3m | Added +1.5k |
| GRATIA CAPITAL, LLC 2.65% of their portfolio | 65.2k $2.3m | Reduced -34.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 58.5k $2.1m | Added +36.9k |
| IMC-Chicago, LLC 0.02% of their portfolio | 56.3k $2.0m | Added +3.9k |
| Invesco Ltd. 0.00% of their portfolio | 56.3k $2.0m | New |
| Hartree Partners, LP 0.37% of their portfolio | 48.0k $1.7m | Added +5.0k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 43.9k $1.6m | Reduced -13.2k |
| CREDIT AGRICOLE S A 0.00% of their portfolio | 40.0k $1.4m | New |
| LPL Financial LLC 0.00% of their portfolio | 36.5k $1.3m | Added +18.3k |
| Savant Capital, LLC 0.00% of their portfolio | 29.7k $1.1m | Added +15.2k |
| Focus Partners Wealth 0.00% of their portfolio | 29.3k $1.0m | Added +12.2k |
| Engineers Gate Manager LP 0.01% of their portfolio | 27.9k $986.5k | Reduced -37.4k |
| CVFG LLC 0.10% of their portfolio | 26.1k $923.2k | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 25.8k $913.6k | New |
| Y-Intercept (Hong Kong) Ltd 0.02% of their portfolio | 22.3k $789.0k | Added +10.9k |
| De Lisle Partners LLP 0.08% of their portfolio | 21.8k $772.7k | Added +5.5k |
| Sanctuary Advisors, LLC 0.00% of their portfolio | 20.3k $716.7k | Reduced -5.1k |
| Walleye Capital LLC 0.00% of their portfolio | 19.8k $700.4k | Reduced -266.5k |
| GSA CAPITAL PARTNERS LLP 0.04% of their portfolio | 19.1k $675.0k | New |
| Squarepoint Ops LLC 0.00% of their portfolio | 18.9k $668.8k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 18.1k $640.6k | Reduced -426 |
| Graham Capital Management, L.P. 0.02% of their portfolio | 17.8k $628.6k | Reduced -2.7k |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 17.6k $621.9k | New |
| Perigon Wealth Management, LLC 0.01% of their portfolio | 14.9k $527.0k | Reduced -389 |
| BlackRock, Inc. 0.00% of their portfolio | 14.6k $518.1k | Reduced -4.6k |
| Magnetar Financial LLC 0.00% of their portfolio | 13.9k $490.2k | Added +7.2k |
| Centiva Capital, LP 0.02% of their portfolio | 13.4k $473.1k | Reduced -10.9k |
| Tidal Investments LLC 0.00% of their portfolio | 13.0k $459.8k | Reduced -5.9k |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 12.6k $446.8k | Added +6.8k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 12.5k $440.6k | Reduced -444 |
| NewEdge Advisors, LLC 0.00% of their portfolio | 11.5k $406.5k | Reduced -96 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 9.8k $345.7k | New |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 9.5k $335.0k | Reduced -1.4k |
| State of Wyoming 0.03% of their portfolio | 8.8k $312.4k | Added +6.8k |
| DRIVE WEALTH MANAGEMENT, LLC 0.05% of their portfolio | 8.5k $300.1k | Added +19 |
| Orion Porfolio Solutions, LLC 0.00% of their portfolio | 8.3k $293.5k | Reduced -294 |
| Campbell & CO Investment Adviser LLC 0.01% of their portfolio | 8.0k $284.6k | Reduced -20.1k |
| COMMONS CAPITAL, LLC 0.20% of their portfolio | 8.0k $283.0k | Reduced -7.0k |
| XTX Topco Ltd 0.00% of their portfolio | 7.9k $280.1k | Reduced -19.1k |
| WINTON GROUP Ltd 0.01% of their portfolio | 7.2k $254.7k | Reduced -10.0k |
| Marnell Management LLC 0.13% of their portfolio | 7.2k $253.2k | Added +1.5k |
| Naviter Wealth, LLC 0.02% of their portfolio | 7.1k $250.1k | Added +1.9k |
| Employees Retirement System of Texas 0.00% of their portfolio | 6.9k $244.0k | New |
| Moors & Cabot, Inc. 0.01% of their portfolio | 6.9k $243.2k | Reduced -760 |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 6.7k $235.5k | Reduced -11.5k |
| Entropy Technologies, LP 0.01% of their portfolio | 6.2k $220.7k | Added +165 |
| HARVEY CAPITAL MANAGEMENT INC 0.04% of their portfolio | 6.0k $212.2k | Unchanged |
| Drucker Wealth 3.0, LLC 0.03% of their portfolio | 6.0k $211.7k | Added +27 |
| SG Americas Securities, LLC 0.00% of their portfolio | 4.7k $165.0k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 3.7k $132.2k | Added +879 |
| Smartleaf Asset Management LLC 0.00% of their portfolio | 2.4k $85.6k | Unchanged |
| Steward Partners Investment Advisory, LLC 0.00% of their portfolio | 2.0k $70.7k | Unchanged |
| ASSETMARK, INC 0.00% of their portfolio | 2.0k $69.8k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.4k $47.0k | Reduced -1.6k |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 1.1k $39.5k | Reduced -938 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 1.1k $38.6k | Reduced -135 |
| FINANCIAL CONSULATE, INC 0.00% of their portfolio | 926 $32.8k | New |
| CITIGROUP INC 0.00% of their portfolio | 899 $31.8k | New |
| Global Retirement Partners, LLC 0.00% of their portfolio | 689 $24.4k | First filing |
| Ameritas Advisory Services, LLC 0.00% of their portfolio | 682 $24.1k | New |
| FMR LLC 0.00% of their portfolio | 620 $21.9k | New |
| TD PRIVATE CLIENT WEALTH LLC 0.00% of their portfolio | 554 $19.6k | New |
| Triumph Capital Management 0.00% of their portfolio | 500 $17.7k | Unchanged |
| Federation des caisses Desjardins du Quebec 0.00% of their portfolio | 490 $17.3k | Unchanged |
| First Command Advisory Services, Inc. 0.00% of their portfolio | 477 $16.9k | New |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 413 $14.6k | Reduced -215 |
| Larson Financial Group LLC 0.00% of their portfolio | 351 $12.4k | Added +70 |
| Silver Grove Financial Group, Inc. 0.01% of their portfolio | 283 $10.0k | New |
| Stone House Investment Management, LLC 0.00% of their portfolio | 122 $4.3k | Added +111 |