ONE Nuclear Energy Inc. SEC filings ONEN
ONE Nuclear Energy Inc. has 127 filings in SEC EDGAR's recent list, going back to Nov 8, 2024. Its latest annual report, Form 10-K, was filed on Mar 6, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 29, 2026 (material agreement, acquisition or sale of assets, unregistered share sale, change to shareholder rights, change in control, officer or director change, bylaw or fiscal year change, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 28, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 26, 2026 | — |
| 3 | Initial insider ownership | Oct 5, 2026 | Sep 23, 2026 |
| 3 | Initial insider ownership | Oct 2, 2026 | Sep 23, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Sep 30, 2026 | — |
| 3 | Initial insider ownership | Sep 25, 2026 | Sep 23, 2026 |
| 3 | Initial insider ownership | Sep 25, 2026 | Sep 23, 2026 |
| 3 | Initial insider ownership | Sep 25, 2026 | Sep 23, 2026 |
| 3 | Initial insider ownership | Sep 25, 2026 | Sep 23, 2026 |
| 3 | Initial insider ownership | Sep 25, 2026 | Sep 23, 2026 |
| 3 | Initial insider ownership | Sep 25, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 23, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 13, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 6, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 5, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Dec 5, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 13, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 24, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 23, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 21, 2025 | — |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
| 3 | Initial insider ownership | Jan 16, 2025 | Jan 16, 2025 |
Showing 53 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Electric Services (SIC 4911)
- Listed as
- ONEN (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- West Palm Beach, FL
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1846416
- Former names
- Hennessy Capital Investment Corp. VII (until Sep 22, 2026)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.