TEN · Tsakos Energy Navigation Ltd · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 113 13F filersWho Holds TEN
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 112 filers, like-for-like change +2.7%; actively managed books +2.1%; index-like books +8.5%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 48.5% | 53 | +2.2% |
| Exempt adviser | 3.3% | 4 | -23.2% |
| Adviser | 0.6% | 2 | -85.7% |
| Bank | 4.8% | 9 | +26.6% |
| Broker-dealer | 1.5% | 2 | +3.5% |
| Benefit plan | 0.0% | 1 | -11.0% |
| Non-US | 0.8% | 4 | +121.2% |
| Holding company | 10.3% | 7 | +14.2% |
| Insurer | 0.0% | 0 | — |
| Unknown | 30.3% | 30 | +11.5% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 9.9% | 7 | +8.5% |
| Systematic-like | 24.1% | 18 | +16.5% |
| Concentrated | 2.9% | 14 | -50.9% |
| Diversified active | 63.1% | 73 | +2.3% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 32.3% | 52 | +8.6% |
| Medium turnover | 34.5% | 26 | +17.1% |
| High turnover | 32.8% | 29 | -13.4% |
| Unknown | 0.5% | 5 | +29.1% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 2.2% | 11 | -60.0% |
| Medium horizon | 19.5% | 22 | -4.8% |
| Long horizon | 58.1% | 63 | +12.6% |
| Unknown | 20.3% | 16 | +1.7% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 8.1% | 21 | -31.9% |
| $1B to $10B | 18.0% | 28 | -17.7% |
| $10B to $100B | 32.6% | 33 | +18.3% |
| $100B or more | 41.3% | 30 | +14.5% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 10.8% | 30 | +12.8% |
| Pooled investment vehicles | 38.0% | 20 | -0.5% |
| Registered funds and BDCs | 0.1% | 1 | -53.3% |
| Other investment advisers | 0.0% | 1 | 0.0% |
| Diversified | 0.1% | 1 | -71.4% |
| Governments and sovereign funds | 0.0% | 0 | — |
| Unknown | 51.0% | 59 | +3.9% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 41.9% | 26 | -2.0% |
| Private equity funds | 0.0% | 0 | — |
| Real estate funds | 0.0% | 2 | -70.3% |
| Other private funds | 0.3% | 1 | +71.8% |
| No private funds | 9.6% | 28 | +11.5% |
| Private funds, type not stated | 0.0% | 0 | -100.0% |
| Unknown | 48.2% | 55 | +5.6% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 86.8% | 95 | +3.5% |
| Outside the US | 13.2% | 17 | -2.4% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 1 holder with no observed 2026-03-31 13F and 1 holder with no observed 2026-06-30 13F.
Conviction and Crowding
112 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net sellers of $9,944,193 (0 buying, 1 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 76.9% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies TEN's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | ASC Ardmore Shipping Corp | 5 |
| 2 | TNK Teekay Tankers Ltd. | 5 |
| 3 | INSW International Seaways, Inc. | 6 |
| 4 | TRMD TORM plc | 4 |
| 5 | STNG Scorpio Tankers Inc. | 5 |
| 6 | NMM Navios Maritime Partners L.P. | 4 |
| 7 | DHT DHT Holdings, Inc. | 5 |
| 8 | NVGS Navigator Holdings Ltd. | 3 |
| 9 | CMBT Cmb.Tech NV | 3 |
| 10 | FRO Frontline plc | 4 |
Shareholder Targets
13F filers that own its peers but not TEN, quarter ended Jun 30, 2026Found through its holder-overlap peers: ASC, TNK, INSW, TRMD, STNG, NMM, DHT, NVGS, CMBT, FRO, HAFN, WLK, OGC, CNR, SBLK, SDRL, HBM, TDW, SSRM, VAL. 1,159 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like | $1,810,552,892 15 held | HBM, VAL, SSRM |
| 2 | DIMENSIONAL FUND ADVISORS LP Registered adviser, Diversified active | $1,782,164,835 13 held | VAL, INSW, STNG |
| 3 | AMERICAN CENTURY COMPANIES INC Unknown, Diversified active | $1,163,745,869 15 held | OGC, INSW, HBM |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active | $1,122,419,425 13 held | CNR, VAL, TDW |
| 5 | VAN ECK ASSOCIATES CORP Registered adviser, Index-like | $1,067,123,671 6 held | OGC, SSRM, HBM |
| 6 | GEODE CAPITAL MANAGEMENT, LLC Registered adviser, Index-like | $864,690,583 16 held | VAL, CNR, SSRM |
| 7 | FIL Ltd Non-US, Diversified active | $741,704,236 7 held | HBM, SDRL, TRMD |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active | $530,905,215 13 held | TDW, WLK, SSRM |
| 9 | OAKTREE CAPITAL MANAGEMENT LP Adviser, Concentrated | $529,796,516 1 held | TRMD |
| 10 | AQR CAPITAL MANAGEMENT LLC Registered adviser, Diversified active | $442,372,386 18 held | WLK, OGC, STNG |
Fund Ownership of TEN by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 2.17% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.00% | 473 |
| Index ETFs | 2.17% | 652,678 |
| Active ETFs | 0.00% | 0 |
| Active funds | 0.13% | 38,747 |
| Unclassified | 0.00% | 0 |
| All registered funds | 2.30% | 691,898 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Large ACADIAN ASSET MANAGEMENT LLC | $36,135,477 | 9.20% | 1,021,642 | Shares | 2026-08-13 | |
| Mid CastleKnight Management LP Registered adviser | $28,281,639 | 7.20% | 799,594 | Shares | 2026-08-14 | |
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser | $27,061,976 | 6.89% | 765,111 | Shares | 2026-08-13 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $24,561,493 | 6.25% | 694,416 | Shares | 2026-08-14 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $22,448,808 | 5.71% | 634,685 | Shares | 2026-08-14 | |
| Mega MORGAN STANLEY Holding company | $17,994,520 | 4.58% | 508,751 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC | $16,796,575 | 4.27% | 474,882 | Shares | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $16,701,820 | 4.25% | 472,203 | Shares | 2026-08-13 | |
| Small FOUNDATION RESOURCE MANAGEMENT INC Registered adviser | $14,931,567 | 3.80% | 316,012 | Shares | 2026-10-19 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $14,230,765 | 3.62% | 402,340 | Shares | 2026-08-14 | |
| Mid Main Street Financial Solutions, LLC Registered adviser | $14,050,201 | 3.58% | 397,235 | Shares | 2026-08-07 | |
| Large TUDOR INVESTMENT CORP ET AL Registered adviser | $9,065,012 | 2.31% | 256,291 | Shares | 2026-08-14 | |
| Mega D. E. Shaw & Co., Inc. | $7,182,302 | 1.83% | 203,062 | Shares | 2026-08-14 | |
| Large Point72 Asset Management, L.P. Registered adviser | $7,137,347 | 1.82% | 201,791 | Shares | 2026-08-14 | |
| Mid CastleKnight Management LP Registered adviser | $7,074,000 | 1.80% | 200,000 | Call | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO Bank | $6,459,479 | 1.64% | 182,626 | Shares | 2026-08-12 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $6,239,268 | 1.59% | 176,400 | Put | 2026-08-14 | |
| Small Condire Management, LP Registered adviser | $6,187,167 | 1.57% | 174,927 | Shares | 2026-08-14 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $5,765,946 | 1.47% | 163,018 | Shares | 2026-08-14 | |
| Large HRT FINANCIAL LP | $5,758,766 | 1.47% | 162,815 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5,355,018 | 1.36% | 151,400 | Call | 2026-08-14 | |
| Mega UBS Group AG Bank | $4,763,489 | 1.21% | 134,676 | Shares | 2026-08-13 | |
| Mega Russell Investments Group, Ltd. | $4,376,613 | 1.11% | 123,738 | Shares | 2026-08-06 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $4,237,891 | 1.08% | 119,816 | Shares | 2026-08-14 | |
| Mid GROUP ONE TRADING LLC Broker-dealer | $4,127,219 | 1.05% | 116,687 | Shares | 2026-08-14 | |
| Mid Glenorchy Capital Ltd Registered adviser | $3,932,436 | 1.00% | 111,180 | Shares | 2026-07-29 | |
| Mid PDT Partners, LLC Registered adviser | $3,466,047 | 0.88% | 97,994 | Shares | 2026-08-14 | |
| Mid NAVELLIER & ASSOCIATES INC Registered adviser | $3,417,909 | 0.87% | 96,633 | Shares | 2026-08-04 | |
| Mid SPROTT INC. Holding company | $3,282,336 | 0.84% | 92,800 | Shares | 2026-07-28 | |
| Large VOLORIDGE INVESTMENT MANAGEMENT, LLC Registered adviser | $3,214,531 | 0.82% | 90,883 | Shares | 2026-08-14 | |
| Mega MARSHALL WACE, LLP Exempt adviser | $3,019,465 | 0.77% | 85,368 | Shares | 2026-08-13 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $2,981,195 | 0.76% | 84,286 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $2,857,896 | 0.73% | 80,800 | Call | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,709,766 | 0.69% | 76,612 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $2,649,213 | 0.67% | 74,900 | Call | 2026-09-02 | |
| Mid Susquehanna Portfolio Strategies, LLC | $2,330,706 | 0.59% | 65,895 | Shares | 2026-08-14 | |
| Mega STATE STREET CORP Bank | $2,323,349 | 0.59% | 65,687 | Shares | 2026-09-22 | |
| Small GRATIA CAPITAL, LLC Exempt adviser | $2,307,255 | 0.59% | 65,232 | Shares | 2026-08-14 | |
| Mid Y-Intercept (Hong Kong) Ltd Exempt adviser | $2,248,958 | 0.57% | 47,597 | Shares | 2026-10-16 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $2,069,993 | 0.53% | 58,524 | Shares | 2026-08-13 | |
| Large IMC-Chicago, LLC | $1,992,922 | 0.51% | 56,345 | Shares | 2026-08-06 | |
| Mega Invesco Ltd. Adviser | $1,992,037 | 0.51% | 56,320 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $1,959,498 | 0.50% | 55,400 | Put | 2026-09-02 | |
| Small Hartree Partners, LP | $1,697,760 | 0.43% | 48,000 | Shares | 2026-08-12 | |
| Mega STIFEL FINANCIAL CORP | $1,552,389 | 0.40% | 43,890 | Shares | 2026-08-12 | |
| Large CREDIT AGRICOLE S A | $1,414,800 | 0.36% | 40,000 | Shares | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $1,290,014 | 0.33% | 36,472 | Shares | 2026-08-07 | |
| Large Savant Capital, LLC Registered adviser | $1,050,913 | 0.27% | 29,712 | Shares | 2026-08-10 | |
| Mega JANE STREET GROUP, LLC | $1,036,341 | 0.26% | 29,300 | Put | 2026-08-14 | |
| Large Focus Partners Wealth Registered adviser | $1,036,341 | 0.26% | 29,300 | Shares | 2026-08-12 | |
| Mid Engineers Gate Manager LP | $986,504 | 0.25% | 27,891 | Shares | 2026-08-14 | |
| Small CVFG LLC Registered adviser | $923,157 | 0.23% | 26,100 | Shares | 2026-08-11 | |
| Mega SEI INVESTMENTS CO Holding company | $913,571 | 0.23% | 25,829 | Shares | 2026-08-14 | |
| Small Counterpoint Mutual Funds LLC Registered adviser | $784,680 | 0.20% | 16,607 | Shares | 2026-10-16 | |
| Small De Lisle Partners LLP Non-US | $772,410 | 0.20% | 21,838 | Shares | 2026-08-12 | |
| Large Sanctuary Advisors, LLC | $716,666 | 0.18% | 20,262 | Shares | 2026-08-13 | |
| Large Walleye Capital LLC Registered adviser | $700,361 | 0.18% | 19,801 | Shares | 2026-08-03 | |
| Mid GSA CAPITAL PARTNERS LLP Registered adviser | $674,753 | 0.17% | 19,077 | Shares | 2026-08-06 | |
| Large Squarepoint Ops LLC Registered adviser | $668,811 | 0.17% | 18,909 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $640,621 | 0.16% | 18,112 | Shares | 2026-08-14 | |
| Mid Graham Capital Management, L.P. Registered adviser | $628,631 | 0.16% | 17,773 | Shares | 2026-08-14 | |
| Large Balyasny Asset Management L.P. Registered adviser | $621,946 | 0.16% | 17,584 | Shares | 2026-08-14 | |
| Mid Perigon Wealth Management, LLC Registered adviser | $574,796 | 0.15% | 12,165 | Shares | 2026-10-22 | |
| Mega BlackRock, Inc. Holding company | $518,098 | 0.13% | 14,648 | Shares | 2026-08-07 | |
| Large Magnetar Financial LLC Registered adviser | $490,192 | 0.12% | 13,859 | Shares | 2026-08-14 | |
| Large Centiva Capital, LP Registered adviser | $473,073 | 0.12% | 13,375 | Shares | 2026-08-13 | |
| Large Tidal Investments LLC Registered adviser | $459,774 | 0.12% | 12,999 | Shares | 2026-08-13 | |
| Large Police & Firemen's Retirement System of New Jersey | $446,758 | 0.11% | 12,631 | Shares | 2026-07-23 | |
| Mega RAYMOND JAMES FINANCIAL INC | $440,603 | 0.11% | 12,457 | Shares | 2026-08-14 | |
| Large NewEdge Advisors, LLC Registered adviser | $406,507 | 0.10% | 11,493 | Shares | 2026-08-12 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $345,671 | 0.09% | 9,773 | Shares | 2026-09-23 | |
| Large Schonfeld Strategic Advisors LLC Registered adviser | $335,024 | 0.09% | 9,472 | Shares | 2026-08-14 | |
| Small DRIVE WEALTH MANAGEMENT, LLC Registered adviser | $300,114 | 0.08% | 8,485 | Shares | 2026-07-22 | |
| Large Orion Porfolio Solutions, LLC | $293,464 | 0.07% | 8,297 | Shares | 2026-08-14 | |
| Mid Campbell & CO Investment Adviser LLC Registered adviser | $284,551 | 0.07% | 8,045 | Shares | 2026-08-03 | |
| Small COMMONS CAPITAL, LLC | $282,960 | 0.07% | 8,000 | Shares | 2026-07-30 | |
| Mid XTX Topco Ltd | $280,059 | 0.07% | 7,918 | Shares | 2026-08-14 | |
| Mid WINTON GROUP Ltd | $254,664 | 0.06% | 7,200 | Shares | 2026-08-07 | |
| Small Marnell Management LLC Registered adviser | $253,178 | 0.06% | 7,158 | Shares | 2026-08-13 | |
| Mid Naviter Wealth, LLC Registered adviser | $250,065 | 0.06% | 7,070 | Shares | 2026-08-07 | |
| Large Employees Retirement System of Texas | $243,876 | 0.06% | 6,895 | Shares | 2026-08-14 | |
| Mid Moors & Cabot, Inc. Registered adviser | $243,168 | 0.06% | 6,875 | Shares | 2026-08-10 | |
| Mega HSBC HOLDINGS PLC | $235,953 | 0.06% | 6,671 | Shares | 2026-08-14 | |
| Mid Entropy Technologies, LP Registered adviser | $220,744 | 0.06% | 6,241 | Shares | 2026-08-13 | |
| Small HARVEY CAPITAL MANAGEMENT INC | $212,220 | 0.05% | 6,000 | Shares | 2026-08-21 | |
| Small Drucker Wealth 3.0, LLC Registered adviser | $211,724 | 0.05% | 5,986 | Shares | 2026-07-13 | |
| Mega SG Americas Securities, LLC Non-US | $164,611 | 0.04% | 4,654 | Shares | 2026-08-07 | |
| Large OSAIC HOLDINGS, INC. Holding company | $132,177 | 0.03% | 3,737 | Shares | 2026-08-14 | |
| Large ASSETMARK, INC Registered adviser | $99,272 | 0.03% | 2,101 | Shares | 2026-10-21 | |
| Mid State of Wyoming | $91,901 | 0.02% | 1,945 | Shares | 2026-10-28 | |
| Mid Smartleaf Asset Management LLC Registered adviser | $84,675 | 0.02% | 2,394 | Shares | 2026-08-12 | |
| Large Steward Partners Investment Advisory, LLC Registered adviser | $70,740 | 0.02% | 2,000 | Shares | 2026-08-13 | |
| Mega ROYAL BANK OF CANADA Bank | $47,748 | 0.01% | 1,350 | Shares | 2026-08-14 | |
| Small FINANCIAL CONSULATE, INC Registered adviser | $43,753 | 0.01% | 926 | Shares | 2026-10-23 | |
| Mid EverSource Wealth Advisors, LLC Registered adviser | $39,507 | 0.01% | 1,117 | Shares | 2026-07-24 | |
| Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Benefit plan | $38,588 | 0.01% | 1,091 | Shares | 2026-08-17 | |
| Mega CITIGROUP INC Bank | $31,797 | 0.01% | 899 | Shares | 2026-08-03 | |
| Mid TD PRIVATE CLIENT WEALTH LLC Registered adviser | $26,176 | 0.01% | 554 | Shares | 2026-10-28 | |
| Mid Global Retirement Partners, LLC | $24,369 | 0.01% | 689 | Shares | 2026-08-06 | |
| Mid Ameritas Advisory Services, LLC Registered adviser | $24,122 | 0.01% | 682 | Shares | 2026-08-14 |
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