Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in TEN held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | CastleKnight Management LP | 1000K | $35.4M | +25.0% | 3.318% | 0.48% |
| 2 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 765K | $27.1M | -6.0% | 2.540% | 0.01% |
| 3 | TWO SIGMA INVESTMENTS, LP | 694K | $24.6M | +94.5% | 2.305% | 0.02% |
| 4 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 635K | $22.4M | -4.1% | 2.107% | 0.03% |
| 5 | JANE STREET GROUP, LLC | 585K | $20.7M | +31.6% | 1.942% | 0.00% |
| 6 | MORGAN STANLEY | 509K | $18.0M | +15.7% | 1.689% | 0.00% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | 472K | $16.7M | +1.3% | 1.567% | 0.02% |
| 8 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 404K | $14.3M | -32.5% | 1.342% | 0.00% |
| 9 | GOLDMAN SACHS GROUP INC | 402K | $14.2M | +4.8% | 1.336% | 0.00% |
| 10 | Main Street Financial Solutions, LLC | 397K | $14.1M | β | 1.319% | 0.48% |
| 11 | TUDOR INVESTMENT CORP ET AL | 256K | $9.1M | +12.8% | 0.851% | 0.01% |
| 12 | D. E. Shaw & Co., Inc. | 203K | $7.2M | -41.2% | 0.674% | 0.00% |
| 13 | Point72 Asset Management, L.P. | 202K | $7.1M | +151.9% | 0.670% | 0.01% |
| 14 | JPMORGAN CHASE & CO | 183K | $6.5M | +73.5% | 0.606% | 0.00% |
| 15 | Condire Management, LP | 175K | $6.2M | -8.4% | 0.581% | 0.66% |
| 16 | Qube Research & Technologies Ltd | 163K | $5.8M | β | 0.541% | 0.01% |
| 17 | UBS Group AG | 135K | $4.8M | +32.7% | 0.447% | 0.00% |
| 18 | CITADEL ADVISORS LLC | 130K | $4.6M | -8.1% | 0.432% | 0.00% |
| 19 | Russell Investments Group, Ltd. | 124K | $4.4M | +25.9% | 0.411% | 0.00% |
| 20 | MILLENNIUM MANAGEMENT LLC | 120K | $4.2M | -18.0% | 0.398% | 0.00% |
| 21 | GROUP ONE TRADING LLC | 117K | $4.1M | -10.1% | 0.387% | 0.01% |
| 22 | Glenorchy Capital Ltd | 111K | $3.9M | +0.1% | 0.369% | 0.14% |
| 23 | PDT Partners, LLC | 98K | $3.5M | +230.7% | 0.325% | 0.18% |
| 24 | NAVELLIER & ASSOCIATES INC | 97K | $3.4M | +297.0% | 0.321% | 0.27% |
| 25 | SPROTT INC. | 93K | $3.3M | +27.5% | 0.308% | 0.10% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in TEN β a direct measure of their conviction.
Filings activity in TEN during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 111 | +3.7% | 35.23% | +2.47 pp | $333M | 3.6% |
| Q1 2026 | 107 | +29% | 32.76% | +6.36 pp | $345M | +97% |
| Q4 2025 | 83 | +5.1% | 26.40% | 1.17 pp | $175M | +1.8% |
| Q3 2025 | 79 | +16% | 27.57% | +5.86 pp | $172M | +43% |
| Q2 2025 | 68 | +13% | 21.71% | +0.93 pp | $120M | +16% |
| Q1 2025 | 60 | 15% | 20.78% | 163.17 pp | $104M | 89% |
| Q4 2024 | 71 | 18% | 183.95% | +161.89 pp | $961M | +526% |
| Q3 2024 | 87 | β | 22.06% | β | $154M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying TEN stock.
Based on Q2 2026 13F filings, institutional ownership of Tsakos Energy Navigation Limited stands at 35.2%, held across 111 reporting institutions.
CastleKnight Management LP is the largest reported institutional holder of TEN, with approximately 999,594 shares worth $0.04B as of Q2 2026.
Yes β 7 widely-followed marquee investors appear among the top 25 institutional holders of TEN, including TWO SIGMA INVESTMENTS, LP, JANE STREET GROUP, LLC, RENAISSANCE TECHNOLOGIES LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP, Point72 Asset Management, L.P..
Our composite Smart Money Score for TEN is 78 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
25 institutions opened new positions in TEN during Q2 2026, while 22 fully exited. 29 added to existing positions and 52 trimmed.
TEN institutional ownership rose by 2.47 percentage points quarter-over-quarter, with a net change of +4 holders.
The top 10 institutions account for 62.3% of all reported 13F value in TEN, and the top 25 account for 85.8%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Tsakos Energy Navigation Limited (TEN) Institutional Ownership