Ranked by reported Q1 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 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 814K | $32.1M | +22.8% | 2.701% | 0.02% |
| 2 | CastleKnight Management LP | 799K | $31.5M | -35.0% | 2.653% | 2.71% |
| 3 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 662K | $26.1M | +2.6% | 2.196% | 0.04% |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 599K | $23.6M | +16.9% | 1.989% | 0.00% |
| 5 | RENAISSANCE TECHNOLOGIES LLC | 466K | $18.4M | +15.2% | 1.547% | 0.03% |
| 6 | MORGAN STANLEY | 440K | $17.4M | +30.8% | 1.460% | 0.00% |
| 7 | GOLDMAN SACHS GROUP INC | 384K | $15.1M | +282.0% | 1.274% | 0.00% |
| 8 | TWO SIGMA INVESTMENTS, LP | 357K | $14.1M | +52.3% | 1.185% | 0.01% |
| 9 | D. E. Shaw & Co., Inc. | 345K | $13.6M | +424.7% | 1.146% | 0.01% |
| 10 | Walleye Capital LLC | 286K | $11.3M | +654.1% | 0.950% | 0.05% |
| 11 | Sagil Capital LLP | 250K | $9.9M | -71.0% | 0.830% | 6.32% |
| 12 | TUDOR INVESTMENT CORP ET AL | 227K | $9.0M | +189.3% | 0.754% | 0.03% |
| 13 | Condire Management, LP | 191K | $7.5M | 0.0% | 0.634% | 0.73% |
| 14 | MILLENNIUM MANAGEMENT LLC | 146K | $5.8M | — | 0.485% | 0.00% |
| 15 | GROUP ONE TRADING, L.P. | 130K | $5.1M | +66.6% | 0.431% | 0.17% |
| 16 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | 122K | $4.8M | — | 0.404% | 0.02% |
| 17 | Glenorchy Capital Ltd | 111K | $4.4M | +5.5% | 0.368% | 2.24% |
| 18 | UBS Group AG | 101K | $4.0M | +128.7% | 0.337% | 0.00% |
| 19 | GRATIA CAPITAL, LLC | 100K | $3.9M | -30.2% | 0.332% | 2.43% |
| 20 | Russell Investments Group, Ltd. | 98K | $3.7M | — | 0.326% | 0.00% |
| 21 | BANK OF AMERICA CORP /DE/ | 93K | $3.7M | +214.4% | 0.308% | 0.00% |
| 22 | Point72 Asset Management, L.P. | 80K | $3.2M | -40.3% | 0.266% | 0.00% |
| 23 | SPROTT INC. | 73K | $2.9M | +32.4% | 0.242% | 0.09% |
| 24 | MARSHALL WACE, LLP | 71K | $2.8M | — | 0.235% | 0.00% |
| 25 | Manatuck Hill Partners, LLC | 70K | $2.8M | — | 0.232% | 0.90% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in TEN — a direct measure of their conviction.
Filings activity in TEN during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 103 | +26% | 27.19% | +12.51 pp | $318M | +85% |
| Q4 2025 | 82 | +6.5% | 14.68% | +2.70 pp | $172M | +23% |
| Q3 2025 | 77 | +13% | 11.98% | +1.67 pp | $140M | +16% |
| Q2 2025 | 68 | +13% | 10.31% | +1.42 pp | $120M | +16% |
| Q1 2025 | 60 | 15% | 8.89% | 73.38 pp | $104M | 89% |
| Q4 2024 | 71 | 18% | 82.27% | +69.12 pp | $961M | +526% |
| Q3 2024 | 87 | 19% | 13.15% | 59.78 pp | $154M | 82% |
| Q2 2024 | 107 | — | 72.93% | — | $852M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying TEN stock.
Based on Q1 2026 13F filings, institutional ownership of Tsakos Energy Navigation Limited stands at 27.2%, held across 103 reporting institutions.
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP is the largest reported institutional holder of TEN, with approximately 813,845 shares worth $0.03B as of Q1 2026.
Yes — 5 widely-followed marquee investors appear among the top 25 institutional holders of TEN, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA INVESTMENTS, LP, MILLENNIUM MANAGEMENT LLC, Point72 Asset Management, L.P..
Our composite Smart Money Score for TEN is 83 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
39 institutions opened new positions in TEN during Q1 2026, while 18 fully exited. 55 added to existing positions and 9 trimmed.
TEN institutional ownership rose by 12.51 percentage points quarter-over-quarter, with a net change of +21 holders.
The top 10 institutions account for 64.0% of all reported 13F value in TEN, and the top 25 account for 87.1%.
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