One Nuclear EnergyONEN
13F holders, Q1 2026 (March 31)53holders −2
6new positions
8sold out
2famous investors
$10.35avg. 13F price*
At the end of Q1 2026, 53 institutions reported holding One Nuclear Energy Inc. (ONEN) in their 13F filings, down 2 from Q4 2025. 6 opened new positions and 8 sold out. The largest holders were Highbridge Capital Management LLC ($17.2M), TENOR CAPITAL MANAGEMENT Co., L.P. ($15.5M) and Linden Advisors LP ($15.1M). 2 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- One Nuclear Energy Inc.
- Filed as
- HENNESSY CAP INVT CORP VII (Q1 2026)
- CUSIP
- G4405D107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $21.4M |
| Exits | 8 | $22.0M |
All 13F filers, Q4 2025 → Q1 2026: 3,121,335 shares bought and 2,603,134 shares sold, net +518,201 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 53 holders
| Highbridge Capital Management LLC | 1.66% | Add +10.8% | 1,661,835 | $17.2M |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 1.05% | No change | 1,500,000 | $15.5M |
| Linden Advisors LP | 0.88% | No change | 1,463,732 | $15.1M |
| Aventail Capital Group, LP | 0.73% | Add +4.3% | 1,452,081 | $15.0M |
| Verbena Value LP | 2.07% | No change | 1,222,740 | $12.7M |
| AQR Arbitrage LLC | 0.21% | Reduce -0.6% | 1,053,469 | $10.9M |
| D. E. Shaw & Co. | 0.01% | No change | 940,500 | $9.7M |
| Crossingbridge Advisors, LLC | 1.98% | New | 940,222 | $9.7M |
| Berkley W R Corp. | 0.41% | Add +52.4% | 728,659 | $7.5M |
| Glazer Capital, LLC | 0.16% | Add +29.6% | 699,909 | $7.2M |
| Magnetar Financial LLC | 0.07% | No change | 665,000 | $6.9M |
| Radcliffe Capital Management, L.P. | 0.61% | Reduce -0.2% | 525,544 | $5.4M |
| RiverPark Advisors, LLC | 2.36% | New | 475,322 | $4.9M |
| Rivernorth Capital Management, LLC | 0.21% | No change | 399,024 | $4.1M |
| Goldman Sachs Group Inc. | 0.00% | No change | 369,995 | $3.8M |
| LMR Partners LLP | 0.04% | No change | 350,000 | $3.6M |
| Toronto Dominion Bank | 0.01% | Add +1678.2% | 350,000 | $3.6M |
| Sculptor Capital LP | 0.09% | Reduce -1.5% | 347,606 | $3.6M |
| Meteora Capital, LLC | 0.23% | New | 300,000 | $3.1M |
| Moore Capital Management, LP | 0.12% | No change | 300,000 | $3.1M |
| Qube Research & Technologies Ltd | 0.00% | No change | 293,951 | $3.0M |
| Mizuho Securities USA LLC | 0.06% | New | 263,595 | $2.7M |
| Whitebox Advisors LLC | 0.11% | No change | 200,000 | $2.1M |
| Bank of America Corp. | 0.00% | No change | 200,000 | $2.1M |
| Gritstone Asset Management LLC | 2.23% | No change | 197,899 | $2.0M |
| HRT Financial LP | 0.00% | Reduce -0.1% | 167,145 | $1.7M |
| Wealthspring Capital LLC | 0.42% | Reduce -29.5% | 166,657 | $1.7M |
| Picton Mahoney Asset Management | 0.02% | No change | 150,000 | $1.6M |
| DLD Asset Management, LP | 0.46% | No change | 146,667 | $1.5M |
| Periscope Capital Inc. | 0.24% | Reduce -37.5% | 125,000 | $1.3M |
| Aristeia Capital, L.L.C. | 0.05% | No change | 125,000 | $1.3M |
| Shaolin Capital Management LLC | 0.12% | No change | 100,000 | $1.0M |
| Cantor Fitzgerald, L. P. | 0.03% | No change | 89,590 | $927K |
| Brevan Howard Capital Management LP | 0.01% | New | 80,000 | $827K |
| Millennium Management | 0.00% | Reduce -77.8% | 75,000 | $776K |
| Wolverine Asset Management LLC | 0.04% | Add +339.8% | 64,551 | $668K |
| Heights Capital Management, Inc. | 0.18% | No change | 60,000 | $621K |
| Context Capital Management, LLC | 0.17% | No change | 60,000 | $621K |
| Cannon Global Investment Management, LLC | 1.46% | Add +14.2% | 58,000 | $600K |
| Clear Street Group Inc. | 0.00% | Add +87.1% | 54,407 | $563K |
| CSS LLC | 0.08% | No change | 51,900 | $537K |
| K2 Principal Fund, L.P. | 0.15% | Reduce -12.2% | 46,922 | $486K |
| Geode Capital Management, LLC | 0.00% | No change | 29,309 | $303K |
| Davidson Kempner Capital Management LP | 0.01% | No change | 24,600 | $255K |
| Shay Capital LLC | 0.02% | No change | 14,135 | $146K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 13,714 | $142K |
| Lineage Point Capital LP | 0.03% | No change | 10,000 | $104K |
| Barclays PLC | 0.00% | No change | 10,000 | $104K |
| FNY Investment Advisers, LLC | 0.02% | Add +364.9% | 5,160 | $53K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Reduce -91.0% | 4,500 | $47K |
| National Bank of Canada | 0.00% | Add +17.4% | 525 | $5K |
| Morgan Stanley | 0.00% | Add +41.5% | 75 | $776 |
| UBS Group AG | 0.00% | Reduce -97.2% | 50 | $518 |
"% of holder's portfolio" is ONEN's weight in each manager's 13F, not the share of One Nuclear Energy Inc. the manager owns.