Oklo Inc. SEC filings OKLO
Oklo Inc. has 494 filings in SEC EDGAR's recent list, going back to Mar 15, 2021. Its latest annual report, Form ARS, was filed on May 4, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 6, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Sep 11, 2026 (material agreement, agreement ended). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 6, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Nov 5, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 2, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 2, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 2, 2026 |
| 4 | Insider transaction | Nov 2, 2026 | Oct 29, 2026 |
| 4 | Insider transaction | Nov 2, 2026 | Oct 29, 2026 |
| 144 | Notice of proposed sale | Nov 2, 2026 | — |
| 144 | Notice of proposed sale | Oct 29, 2026 | — |
| 144 | Notice of proposed sale | Oct 29, 2026 | — |
| 4 | Insider transaction | Oct 22, 2026 | Oct 20, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Oct 17, 2026 |
| 144 | Notice of proposed sale | Oct 20, 2026 | — |
| 144 | Notice of proposed sale | Oct 19, 2026 | — |
| 4 | Insider transaction | Oct 15, 2026 | Oct 13, 2026 |
| 4 | Insider transaction | Oct 15, 2026 | Oct 13, 2026 |
| 144 | Notice of proposed sale | Oct 14, 2026 | — |
| 4 | Insider transaction | Oct 13, 2026 | Oct 8, 2026 |
| 144 | Notice of proposed sale | Oct 9, 2026 | — |
| 4 | Insider transaction | Oct 8, 2026 | Oct 6, 2026 |
| 4 | Insider transaction | Oct 6, 2026 | Oct 3, 2026 |
| 144 | Notice of proposed sale | Oct 6, 2026 | — |
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| 144 | Notice of proposed sale | Oct 5, 2026 | — |
| 144 | Notice of proposed sale | Oct 1, 2026 | — |
| 4 | Insider transaction | Sep 29, 2026 | Sep 26, 2026 |
| 4 | Insider transaction | Sep 29, 2026 | Sep 26, 2026 |
| 4 | Insider transaction | Sep 29, 2026 | Sep 26, 2026 |
| 144 | Notice of proposed sale | Sep 28, 2026 | — |
| 144 | Notice of proposed sale | Sep 28, 2026 | — |
| 144 | Notice of proposed sale | Sep 28, 2026 | — |
| 4 | Insider transaction | Sep 16, 2026 | Sep 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Sep 13, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Sep 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Sep 13, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Sep 11, 2026 |
| 144 | Notice of proposed sale | Sep 14, 2026 | — |
| 424B5 | Prospectus supplement | Sep 11, 2026 | — |
| 8-K |
Current report
Material agreement, Agreement ended
|
Sep 11, 2026 | Sep 10, 2026 |
| 4 | Insider transaction | Sep 10, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 9, 2026 | Sep 8, 2026 |
| 144 | Notice of proposed sale | Sep 9, 2026 | — |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 144 | Notice of proposed sale | Sep 8, 2026 | — |
| 144 | Notice of proposed sale | Sep 4, 2026 | — |
| 4 | Insider transaction | Sep 3, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Sep 3, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Sep 1, 2026 | Aug 31, 2026 |
| 144 | Notice of proposed sale | Sep 1, 2026 | — |
| 144 | Notice of proposed sale | Sep 1, 2026 | — |
| 4 | Insider transaction | Aug 27, 2026 | Aug 25, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 21, 2026 |
| 144 | Notice of proposed sale | Aug 25, 2026 | — |
| 144 | Notice of proposed sale | Aug 24, 2026 | — |
| 144 | Notice of proposed sale | Aug 24, 2026 | — |
| 144 | Notice of proposed sale | Aug 24, 2026 | — |
| 144 | Notice of proposed sale | Aug 24, 2026 | — |
| 4 | Insider transaction | Aug 17, 2026 | Aug 13, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 13, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| 3 | Initial insider ownership | Aug 4, 2026 | Jul 27, 2026 |
| 3 | Initial insider ownership | Aug 4, 2026 | Jul 27, 2026 |
| 3 | Initial insider ownership | Aug 4, 2026 | Jul 27, 2026 |
| 3 | Initial insider ownership | Aug 4, 2026 | Jul 27, 2026 |
| 3 | Initial insider ownership | Aug 4, 2026 | Jul 27, 2026 |
| 144 | Notice of proposed sale | Aug 3, 2026 | — |
| 144 | Notice of proposed sale | Aug 3, 2026 | — |
| 144 | Notice of proposed sale | Aug 3, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 29, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Jul 28, 2026 | Jul 22, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 6, 2026 | — |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 144 | Notice of proposed sale | Jul 1, 2026 | — |
| S-8 | Employee stock plan registration | Jun 24, 2026 | — |
| 10-Q/A | Amended quarterly report | Jun 17, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| 144 | Notice of proposed sale | May 21, 2026 | — |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 144 | Notice of proposed sale | May 20, 2026 | — |
| 144 | Notice of proposed sale | May 20, 2026 | — |
| 424B5 | Prospectus supplement | May 13, 2026 | — |
| 8-K |
Current report
Material agreement, Agreement ended
|
May 13, 2026 | May 13, 2026 |
| 10-Q | Quarterly report | May 12, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 1, 2026 |
| ARS | Annual report to shareholders | May 4, 2026 | Dec 31, 2025 |
| 144 | Notice of proposed sale | May 1, 2026 | — |
| 144 | Notice of proposed sale | May 1, 2026 | — |
| 144 | Notice of proposed sale | May 1, 2026 | — |
| 4 | Insider transaction | Apr 30, 2026 | Apr 10, 2026 |
| 3 | Initial insider ownership | Apr 30, 2026 | Apr 10, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 21, 2026 | — |
| DEF 14A | Proxy statement | Apr 21, 2026 | Dec 31, 2025 |
| 3 | Initial insider ownership | Apr 20, 2026 | Apr 10, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 10, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 10, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 10, 2026 |
| 3 | Initial insider ownership | Apr 20, 2026 | Apr 10, 2026 |
| 3 | Initial insider ownership | Apr 20, 2026 | Apr 10, 2026 |
| 3 | Initial insider ownership | Apr 20, 2026 | Apr 10, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 14, 2026 | Apr 10, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 1, 2026 | Mar 30, 2026 |
| 4 | Insider transaction | Apr 1, 2026 | Mar 30, 2026 |
| 144 | Notice of proposed sale | Apr 1, 2026 | — |
| 4 | Insider transaction | Mar 30, 2026 | Mar 27, 2026 |
| 4 | Insider transaction | Mar 30, 2026 | Mar 27, 2026 |
| 144 | Notice of proposed sale | Mar 27, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 144 | Notice of proposed sale | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 26, 2026 | Mar 24, 2026 |
| 4 | Insider transaction | Mar 26, 2026 | Mar 24, 2026 |
| 144 | Notice of proposed sale | Mar 25, 2026 | — |
| 144 | Notice of proposed sale | Mar 25, 2026 | — |
| 10-K | Annual report | Mar 17, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 144 | Notice of proposed sale | Mar 13, 2026 | — |
| 144 | Notice of proposed sale | Mar 13, 2026 | — |
| 144 | Notice of proposed sale | Mar 13, 2026 | — |
| 4 | Insider transaction | Mar 12, 2026 | Mar 10, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Dec 22, 2025 |
| 4 | Insider transaction | Mar 10, 2026 | Dec 22, 2025 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 144 | Notice of proposed sale | Mar 9, 2026 | — |
| 4 | Insider transaction | Mar 5, 2026 | Mar 3, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 5 | Annual insider ownership | Feb 17, 2026 | Dec 31, 2025 |
| 5 | Annual insider ownership | Feb 17, 2026 | Dec 31, 2025 |
| 5 | Annual insider ownership | Feb 17, 2026 | Dec 31, 2025 |
| 5 | Annual insider ownership | Feb 17, 2026 | Dec 31, 2025 |
| 5 | Annual insider ownership | Feb 17, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 2, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 2, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 2, 2026 |
| 144 | Notice of proposed sale | Feb 2, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 21, 2026 | — |
| 4 | Insider transaction | Jan 13, 2026 | Jan 9, 2026 |
| 4 | Insider transaction | Jan 13, 2026 | Jan 9, 2026 |
| 4 | Insider transaction | Jan 9, 2026 | Jan 7, 2026 |
| 4 | Insider transaction | Jan 9, 2026 | Jan 7, 2026 |
| 144 | Notice of proposed sale | Jan 7, 2026 | — |
| 144 | Notice of proposed sale | Jan 7, 2026 | — |
| 4 | Insider transaction | Jan 6, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 24, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 24, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 22, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 22, 2025 |
| 144 | Notice of proposed sale | Dec 22, 2025 | — |
| 144 | Notice of proposed sale | Dec 22, 2025 | — |
| 4 | Insider transaction | Dec 19, 2025 | Dec 17, 2025 |
| 144 | Notice of proposed sale | Dec 18, 2025 | — |
| 144 | Notice of proposed sale | Dec 17, 2025 | — |
| EFFECT | Filing | Dec 4, 2025 | — |
| 424B5 | Prospectus supplement | Dec 4, 2025 | — |
| 8-K |
Current report
Material agreement
|
Dec 4, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Dec 2, 2025 | Nov 28, 2025 |
| CORRESP | Letter to the SEC | Dec 1, 2025 | — |
| 144 | Notice of proposed sale | Dec 1, 2025 | — |
| 4 | Insider transaction | Nov 20, 2025 | Nov 18, 2025 |
| 144 | Notice of proposed sale | Nov 19, 2025 | — |
| S-3/A | Filing | Nov 13, 2025 | — |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 31, 2025 | — |
Showing 200 filings, the most recent 200. 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.
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Company profile
- Industry
- Electric Services (SIC 4911)
- Listed as
- OKLO (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Santa Clara, CA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1849056
- Former names
- AltC Acquisition Corp. (until May 8, 2024)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.