One Nuclear EnergyONEN
13F holders, Q2 2025 (June 30)46holders +18
20new positions
2sold out
1famous investor
$10.16avg. 13F price*
At the end of Q2 2025, 46 institutions reported holding One Nuclear Energy Inc. (ONEN) in their 13F filings, up 18 from Q1 2025. 20 opened new positions and 2 sold out. The largest holders were TENOR CAPITAL MANAGEMENT Co., L.P. ($15.2M), Meteora Capital, LLC ($14.3M) and AQR Arbitrage LLC ($13.1M). One famous investor held it David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- One Nuclear Energy Inc.
- Filed as
- HENNESSY CAP INVT CORP VII (Q2 2025)
- CUSIP
- G4405D107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $65.5M |
| Exits | 2 | $1.3M |
All 13F filers, Q1 2025 → Q2 2025: 7,228,789 shares bought and 2,675,463 shares sold, net +4,553,326 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 46 holders
| TENOR CAPITAL MANAGEMENT Co., L.P. | 2.09% | New | 1,500,000 | $15.2M |
| Meteora Capital, LLC | 2.75% | New | 1,402,904 | $14.3M |
| AQR Arbitrage LLC | 0.48% | No change | 1,288,444 | $13.1M |
| Linden Advisors LP | 1.29% | No change | 1,213,732 | $12.3M |
| Glazer Capital, LLC | 0.50% | Add +15.4% | 1,185,765 | $12.0M |
| D. E. Shaw & Co. | 0.01% | No change | 899,662 | $9.1M |
| Magnetar Financial LLC | 0.04% | New | 700,000 | $7.1M |
| Berkley W R Corp. | 0.41% | No change | 646,230 | $6.6M |
| Two Sigma Investments, LP | 0.01% | No change | 634,375 | $6.4M |
| Centiva Capital, LP | 0.40% | Add +500.0% | 600,000 | $6.1M |
| Radcliffe Capital Management, L.P. | 2.63% | New | 563,399 | $5.7M |
| Polar Asset Management Partners Inc. | 0.17% | No change | 500,000 | $5.1M |
| Wealthspring Capital LLC | 1.33% | New | 488,560 | $5.0M |
| Periscope Capital Inc. | 1.87% | Reduce -7.7% | 461,500 | $4.7M |
| K2 Principal Fund, L.P. | 1.99% | Reduce -56.9% | 452,717 | $4.6M |
| Mangrove Partners Im, LLC | 0.50% | No change | 450,000 | $4.6M |
| LMR Partners LLP | 0.10% | No change | 450,000 | $4.6M |
| Goldman Sachs Group Inc. | 0.00% | No change | 444,056 | $4.5M |
| Mizuho Securities USA LLC | 0.08% | — | 386,386 | $3.9M |
| Schonfeld Strategic Advisors LLC | 0.03% | Add +50.0% | 375,000 | $3.8M |
| Fort Baker Capital Management LP | 0.62% | New | 349,248 | $3.5M |
| Moore Capital Management, LP | 0.07% | New | 300,000 | $3.0M |
| Toronto Dominion Bank | 0.01% | Reduce -63.5% | 262,727 | $2.7M |
| Picton Mahoney Asset Management | 0.04% | No change | 250,000 | $2.5M |
| Gritstone Asset Management LLC | 2.09% | New | 200,000 | $2.0M |
| Governors Lane LP | 0.28% | New | 200,000 | $2.0M |
| Whitebox Advisors LLC | 0.15% | No change | 200,000 | $2.0M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | Reduce -86.7% | 200,000 | $2.0M |
| Shaolin Capital Management LLC | 0.52% | Reduce -3.3% | 193,430 | $2.0M |
| Wolverine Asset Management LLC | 0.10% | New | 138,540 | $1.4M |
| Aristeia Capital, L.L.C. | 0.06% | New | 125,000 | $1.3M |
| DLD Asset Management, LP | 0.55% | New | 111,702 | $1.1M |
| Context Capital Management, LLC | 0.80% | Reduce -46.7% | 100,000 | $1.0M |
| Verition Fund Management LLC | 0.01% | New | 88,424 | $898K |
| Parallax Volatility Advisers, L.P. | 0.04% | New | 78,391 | $796K |
| Alpine Global Management, LLC | 0.17% | New | 65,025 | $661K |
| Heights Capital Management, Inc. | 0.20% | New | 60,000 | $610K |
| Kepos Capital LP | 0.71% | No change | 50,000 | $508K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | No change | 50,000 | $508K |
| Clear Street LLC | 0.00% | Reduce -49.8% | 44,923 | $456K |
| HighTower Advisors, LLC | 0.00% | New | 35,000 | $356K |
| Bardin Hill Management Partners LP | 0.16% | New | 25,027 | $254K |
| Cantor Fitzgerald, L. P. | 0.00% | Reduce -41.9% | 14,400 | $146K |
| Condor Capital Management | 0.01% | New | 12,050 | $122K |
| UBS Group AG | 0.00% | New | 2,258 | $23K |
| Morgan Stanley | 0.00% | Add +1.8% | 56 | $569 |
"% of holder's portfolio" is ONEN's weight in each manager's 13F, not the share of One Nuclear Energy Inc. the manager owns.