ONE Nuclear Energy Inc.
HVII- Exchange
- Nasdaq
- Industry
- Electric Services
- SEC CIK
- 0001846416
No open-market purchases or sales by ONE Nuclear Energy Inc. insiders were filed in the last 90 days; 56 institutions reported holding it in 13F filings for Q2 2026, worth $195.6M in total; no superinvestor holds it.
Holders of 5% or more of HVII
Holders whose latest Schedule 13D or 13G filing reports 5% or more of ONE Nuclear Energy Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| HC VII Sponsor LLC | 13G | 25.20%6.45M shares | New | May 15, 20251 filing | May 15, 2025 | SEC |
| Highbridge Capital Management LLC | 13G | 7.60%1.50M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Linden Capital L.P. | 13G/A | 7.40%1.46M shares | – | Feb 12, 20261 filing | Feb 12, 2026 | SEC |
| Verbena Value LP | 13G | 6.21%1.22M shares | New | Jun 5, 20261 filing | Jun 5, 2026 | SEC |
| North Rock Capital Management, LLC | 13G | 6.21%1.22M shares | New | May 14, 20261 filing | May 14, 2026 | SEC |
| Berkley W R Corp | 13G | 5.60%1.10M shares | New | Aug 6, 20261 filing | Aug 6, 2026 | SEC |
| AQR Capital Management LLC | 13G/A | 5.38%1.06M shares | −1.16 ppfrom 6.54% | May 13, 20252 filings | Feb 12, 2026 | SEC |
| Glazer Capital, LLC | 13G | 5.08%1.00M shares | +2.34 ppfrom 2.74% | May 15, 20253 filings | Aug 13, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
21 Schedule 13D and 13G filings on ONE Nuclear Energy Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 13, 20265:20 PM ET | Glazer Capital, LLCand 1 other | 13G | 5.08%1.00M shares | +2.34 ppfrom 2.74% | Jun 30, 2026 | SEC |
| Aug 6, 20269:01 AM ET | Berkley W R Corpand 1 other | 13G | 5.60%1.10M shares | New | Jun 30, 2026 | SEC |
| Jun 5, 20264:17 PM ET | Verbena Value LPand 1 other | 13G | 6.21%1.22M shares | New | Dec 31, 2025 | SEC |
| May 14, 20264:23 PM ET | North Rock Capital Management, LLCand 1 other | 13G | 6.21%1.22M shares | New | Mar 31, 2026 | SEC |
| May 14, 202610:44 AM ET | Lighthouse Investment Partners, LLCand 4 others | 13G/A | 0.30%58.1K shares | −6.44 ppfrom 6.74%Below 5% | Mar 31, 2026 | SEC |
| Feb 17, 20264:22 PM ET | Highbridge Capital Management LLC | 13G | 7.60%1.50M shares | New | Dec 31, 2025 | SEC |
| Feb 17, 20263:17 PM ET | Fort Baker Capital Management LPand 2 others | 13G/A | 4.90%963.9K shares | −0.20 ppfrom 5.10%Below 5% | Dec 31, 2025 | SEC |
| Feb 17, 20262:37 PM ET | Lighthouse Investment Partners, LLCand 6 others | 13G | 6.74%1.28M shares | New | Dec 31, 2025 | SEC |
| Feb 12, 20264:29 PM ET | Glazer Capital, LLCand 1 other | 13G/A | 2.74%540.1K shares | −2.48 ppfrom 5.22%Below 5% | Dec 31, 2025 | SEC |
| Feb 12, 20262:08 PM ET | Linden Capital L.P.and 3 others | 13G/A | 7.40%1.46M shares | – | Dec 31, 2025 | SEC |
| Feb 12, 20269:28 AM ET | AQR Capital Management LLCand 2 others | 13G/A | 5.38%1.06M shares | −1.16 ppfrom 6.54% | Dec 31, 2025 | SEC |
| Feb 5, 20268:21 AM ET | K2 Principal Fund, L.P.and 3 others | 13G/A | 0.20%53.4K shares | –Below 5% | Dec 31, 2025 | SEC |
| Dec 5, 20252:58 PM ET | Meteora Capital, LLC | 13G/A | 1.18%232.6K shares | −5.50 ppfrom 6.68%Below 5% | Nov 30, 2025 | SEC |
| Nov 14, 20254:12 PM ET | Fort Baker Capital Management LPand 2 others | 13G | 5.10%1.01M shares | New | Sep 30, 2025 | SEC |
| Nov 14, 20253:03 PM ET | Meteora Capital, LLC | 13G/A | 6.68%1.31M shares | −0.44 ppfrom 7.12% | Sep 30, 2025 | SEC |
| Aug 14, 202510:32 AM ET | Meteora Capital, LLC | 13G | 7.12%1.40M shares | New | Jun 30, 2025 | SEC |
| Aug 13, 20254:02 PM ET | Healthcare of Ontario Pension Plan Trust Fund | 13G/A | 1.00%200.0K shares | −6.60 ppfrom 7.60%Below 5% | Jun 30, 2025 | SEC |
| May 15, 20255:08 PM ET | HC VII Sponsor LLCand 3 others | 13G | 25.20%6.45M shares | New | Mar 31, 2025 | SEC |
| May 15, 20254:29 PM ET | Glazer Capital, LLCand 1 other | 13G | 5.22%1.03M shares | New | Mar 31, 2025 | SEC |
| May 14, 20254:15 PM ET | Healthcare of Ontario Pension Plan Trust Fund | 13G | 7.60%1.50M shares | New | Mar 31, 2025 | SEC |
| May 13, 202511:42 AM ET | AQR Capital Management LLCand 2 others | 13G | 6.54%1.29M shares | New | Mar 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell ONE Nuclear Energy Inc. shares.
No Form 144 notices for ONE Nuclear Energy Inc. are on file.