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 |
| 424B5 | Prospectus supplement | Sep 11, 2026 | — |
| 8-K |
Current report
Material agreement, Agreement ended
|
Sep 11, 2026 | Sep 10, 2026 |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 28, 2026 | Jul 22, 2026 |
| S-8 | Employee stock plan registration | Jun 24, 2026 | — |
| 10-Q/A | Amended quarterly report | Jun 17, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2026 | Jun 3, 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 |
| ARS | Annual report to shareholders | May 4, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 21, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 14, 2026 | Apr 10, 2026 |
| 10-K | Annual report | Mar 17, 2026 | Dec 31, 2025 |
| EFFECT | Filing | Dec 4, 2025 | — |
| 424B5 | Prospectus supplement | Dec 4, 2025 | — |
| 8-K |
Current report
Material agreement
|
Dec 4, 2025 | Dec 4, 2025 |
| CORRESP | Letter to the SEC | Dec 1, 2025 | — |
| S-3/A | Filing | Nov 13, 2025 | — |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| S-3 | Shelf registration | Oct 30, 2025 | — |
| 8-K |
Current report
Other events
|
Sep 3, 2025 | Sep 3, 2025 |
| 424B5 | Prospectus supplement | Sep 3, 2025 | — |
| 10-Q | Quarterly report | Aug 11, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Other events
|
Jun 16, 2025 | Jun 12, 2025 |
| 424B5 | Prospectus supplement | Jun 13, 2025 | — |
| EFFECT | Filing | Jun 12, 2025 | — |
| 424B5 | Prospectus supplement | Jun 12, 2025 | — |
| CORRESP | Letter to the SEC | Jun 11, 2025 | — |
| S-3/A | Filing | Jun 10, 2025 | — |
| UPLOAD | Letter from the SEC | Jun 10, 2025 | — |
| 424B3 | Prospectus | Jun 9, 2025 | — |
| 424B3 | Prospectus | Jun 9, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 9, 2025 | Jun 4, 2025 |
| EFFECT | Filing | Jun 6, 2025 | — |
| EFFECT | Filing | Jun 6, 2025 | — |
| S-3 | Shelf registration | Jun 2, 2025 | — |
| POS AM | Filing | Jun 2, 2025 | — |
| POS AM | Filing | Jun 2, 2025 | — |
| EFFECT | Filing | May 13, 2025 | — |
| 424B3 | Prospectus | May 13, 2025 | — |
| 424B3 | Prospectus | May 13, 2025 | — |
| 10-Q | Quarterly report | May 13, 2025 | Mar 31, 2025 |
| 424B3 | Prospectus | May 13, 2025 | — |
| CORRESP | Letter to the SEC | May 9, 2025 | — |
| S-1 | Registration statement | May 9, 2025 | — |
| EFFECT | Filing | May 7, 2025 | — |
| 424B3 | Prospectus | May 7, 2025 | — |
| UPLOAD | Letter from the SEC | May 6, 2025 | — |
| DRS | Filing | Apr 30, 2025 | — |
| POS AM | Filing | Apr 25, 2025 | — |
| ARS | Annual report to shareholders | Apr 22, 2025 | Dec 31, 2024 |
| 424B3 | Prospectus | Apr 22, 2025 | — |
| DEF 14A | Proxy statement | Apr 22, 2025 | Apr 22, 2025 |
| 424B3 | Prospectus | Apr 22, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Apr 22, 2025 | Apr 22, 2025 |
| 424B3 | Prospectus | Mar 24, 2025 | — |
| 8-K |
Current report
Results of operations
|
Mar 24, 2025 | Mar 24, 2025 |
| POS EX | Filing | Mar 24, 2025 | — |
| 424B3 | Prospectus | Mar 24, 2025 | — |
| 10-K | Annual report | Mar 24, 2025 | Dec 31, 2024 |
| 424B3 | Prospectus | Mar 7, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Mar 7, 2025 | Mar 4, 2025 |
| 424B3 | Prospectus | Feb 5, 2025 | — |
| 8-K |
Current report
Listing notice
|
Feb 5, 2025 | Feb 5, 2025 |
| 424B3 | Prospectus | Jan 17, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Jan 17, 2025 | Jan 13, 2025 |
| 424B3 | Prospectus | Dec 27, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Dec 27, 2024 | Dec 27, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 14, 2024 | Nov 14, 2024 |
| 424B3 | Prospectus | Nov 14, 2024 | — |
| 10-Q | Quarterly report | Nov 14, 2024 | Sep 30, 2024 |
| 424B3 | Prospectus | Nov 13, 2024 | — |
| 8-K |
Current report
Other events
|
Nov 13, 2024 | Nov 13, 2024 |
| 424B3 | Prospectus | Nov 13, 2024 | — |
| 8-K |
Current report
Other events
|
Nov 13, 2024 | Nov 12, 2024 |
| 424B3 | Prospectus | Nov 6, 2024 | — |
| 8-K |
Current report
Other events
|
Nov 6, 2024 | Nov 5, 2024 |
| 424B3 | Prospectus | Oct 15, 2024 | — |
| 8-K |
Current report
Auditor change
|
Oct 15, 2024 | Oct 9, 2024 |
| EFFECT | Filing | Sep 18, 2024 | — |
| 424B3 | Prospectus | Sep 18, 2024 | — |
| CORRESP | Letter to the SEC | Sep 16, 2024 | — |
| CORRESP | Letter to the SEC | Aug 30, 2024 | — |
| S-1/A | Amended registration statement | Aug 30, 2024 | — |
| 10-Q | Quarterly report | Aug 14, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2024 | Aug 13, 2024 |
| UPLOAD | Letter from the SEC | Jul 15, 2024 | — |
| S-8 | Employee stock plan registration | Jul 10, 2024 | — |
| S-1 | Registration statement | Jun 20, 2024 | — |
| 8-K |
Current report
Officer or director change
|
May 16, 2024 | May 10, 2024 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Change to shareholder rights, Change in control, Officer or director change, Bylaw or fiscal year change, Other events
|
May 13, 2024 | May 9, 2024 |
| 8-K |
Current report
Other events
|
May 9, 2024 | May 9, 2024 |
| 10-Q | Quarterly report | May 8, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure, Other events
|
May 8, 2024 | May 7, 2024 |
| SEC STAFF LETTER | Filing | Apr 26, 2024 | — |
| EFFECT | Filing | Apr 26, 2024 | — |
| 424B3 | Prospectus | Apr 26, 2024 | — |
| 425 | Filing | Apr 26, 2024 | — |
| CORRESP | Letter to the SEC | Apr 25, 2024 | — |
| 425 | Filing | Apr 19, 2024 | — |
| SEC STAFF LETTER | Filing | Apr 17, 2024 | — |
| CORRESP | Letter to the SEC | Apr 15, 2024 | — |
| S-4/A | Filing | Apr 15, 2024 | — |
| UPLOAD | Letter from the SEC | Apr 11, 2024 | — |
| 425 | Filing | Apr 8, 2024 | — |
| 425 | Filing | Apr 8, 2024 | — |
| S-4/A | Form s-4/a | Apr 2, 2024 | — |
| 425 | Filing | Apr 1, 2024 | — |
| 425 | Filing | Apr 1, 2024 | — |
| 10-K | Annual report | Mar 29, 2024 | Dec 31, 2023 |
| 425 | Filing | Mar 22, 2024 | — |
| 425 | Filing | Mar 22, 2024 | — |
| 425 | Filing | Mar 18, 2024 | — |
| 425 | Filing | Mar 12, 2024 | — |
| 425 | Filing | Feb 12, 2024 | — |
| 425 | Filing | Feb 5, 2024 | — |
| 425 | Filing | Feb 2, 2024 | — |
| 425 | Filing | Feb 2, 2024 | — |
| 425 | Filing | Feb 2, 2024 | — |
| 425 | Filing | Feb 1, 2024 | — |
| 425 | Filing | Feb 1, 2024 | — |
| 425 | Filing | Jan 31, 2024 | — |
| 425 | Filing | Jan 31, 2024 | — |
| 425 | Filing | Jan 30, 2024 | — |
| S-4/A | Filing | Jan 30, 2024 | — |
| CORRESP | Letter to the SEC | Jan 29, 2024 | — |
| 425 | Filing | Jan 22, 2024 | — |
| UPLOAD | Letter from the SEC | Jan 18, 2024 | — |
| UPLOAD | Letter from the SEC | Jan 9, 2024 | — |
| CORRESP | Letter to the SEC | Dec 22, 2023 | — |
| S-4/A | Form s-4/a | Dec 22, 2023 | — |
| 425 | Filing | Dec 19, 2023 | — |
| 8-K |
Current report
Shareholder vote results
|
Dec 15, 2023 | Dec 15, 2023 |
| UPLOAD | Letter from the SEC | Dec 4, 2023 | — |
| 10-Q | Quarterly report | Nov 16, 2023 | Sep 30, 2023 |
| NT 10-Q | Filing | Nov 15, 2023 | Sep 30, 2023 |
| CORRESP | Letter to the SEC | Nov 13, 2023 | — |
| S-4/A | Form-s-4/a | Nov 13, 2023 | — |
| UPLOAD | Letter from the SEC | Oct 25, 2023 | — |
| 425 | Filing | Oct 24, 2023 | — |
| 8-K |
Current report
Bylaw or fiscal year change, Other events
|
Oct 12, 2023 | Oct 11, 2023 |
| 425 | Filing | Oct 5, 2023 | — |
| 8-K |
Current report
Shareholder vote results, Other events
|
Oct 5, 2023 | Oct 5, 2023 |
| 425 | Filing | Sep 28, 2023 | — |
| DEFA14A | Additional proxy material | Sep 28, 2023 | — |
| S-4 | Registration for a merger or exchange | Sep 27, 2023 | — |
| DEFA14A | Additional proxy material | Sep 27, 2023 | — |
| 8-K |
Current report
Other events
|
Sep 27, 2023 | Sep 26, 2023 |
| 425 | Filing | Sep 19, 2023 | — |
| DEF 14A | Proxy statement | Sep 14, 2023 | Oct 5, 2023 |
| 425 | Filing | Sep 7, 2023 | — |
| 425 | Filing | Sep 7, 2023 | — |
| 425 | Filing | Sep 1, 2023 | — |
| 425 | Filing | Aug 31, 2023 | — |
| 425 | Filing | Aug 29, 2023 | — |
| 425 | Filing | Aug 28, 2023 | — |
| PRE 14A | Preliminary proxy statement | Aug 17, 2023 | Aug 17, 2023 |
| 10-Q | Quarterly report | Aug 11, 2023 | Jun 30, 2023 |
| 425 | Filing | Aug 3, 2023 | — |
| 425 | Filing | Jul 25, 2023 | — |
| 425 | Filing | Jul 20, 2023 | — |
| 425 | Filing | Jul 18, 2023 | — |
| 425 | Filing | Jul 11, 2023 | — |
| 425 | Filing | Jul 11, 2023 | — |
| 425 | Filing | Jul 11, 2023 | — |
| 425 | Filing | Jul 11, 2023 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure, Other events
|
Jul 11, 2023 | Jul 11, 2023 |
| 10-Q | Quarterly report | May 15, 2023 | Mar 31, 2023 |
| 10-K | Annual report | Mar 31, 2023 | Dec 31, 2022 |
| 10-Q | Quarterly report | Nov 10, 2022 | Sep 30, 2022 |
| 10-Q | Quarterly report | Aug 12, 2022 | Jun 30, 2022 |
| 10-Q | Quarterly report | May 16, 2022 | Mar 31, 2022 |
| 10-K | Annual report | Mar 31, 2022 | Dec 31, 2021 |
| 10-Q | Quarterly report | Nov 15, 2021 | Sep 30, 2021 |
| 10-Q | Quarterly report | Aug 20, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Other events
|
Jul 16, 2021 | Jul 12, 2021 |
| 8-K |
Current report
Other events
|
Jul 12, 2021 | Jul 7, 2021 |
| 424B4 | Prospectus | Jul 9, 2021 | — |
| EFFECT | Filing | Jul 7, 2021 | — |
| S-1MEF | Filing | Jul 7, 2021 | — |
| CERT | Nyse certification | Jul 7, 2021 | — |
| 8-A12B | Filing | Jul 7, 2021 | — |
| CORRESP | Letter to the SEC | Jul 6, 2021 | — |
| CORRESP | Letter to the SEC | Jul 6, 2021 | — |
| CORRESP | Letter to the SEC | Jul 1, 2021 | — |
| CORRESP | Letter to the SEC | Jul 1, 2021 | — |
| CORRESP | Letter to the SEC | Jun 28, 2021 | — |
| CORRESP | Letter to the SEC | Jun 28, 2021 | — |
| CORRESP | Letter to the SEC | Jun 21, 2021 | — |
| S-1/A | Amended registration statement | Jun 21, 2021 | — |
| UPLOAD | Letter from the SEC | Jun 18, 2021 | — |
| CORRESP | Letter to the SEC | Jun 4, 2021 | — |
| S-1/A | Amended registration statement | Jun 4, 2021 | — |
| UPLOAD | Letter from the SEC | May 17, 2021 | — |
| CORRESP | Letter to the SEC | May 7, 2021 | — |
| S-1/A | Amended registration statement | May 7, 2021 | — |
| UPLOAD | Letter from the SEC | Apr 12, 2021 | — |
| S-1 | Registration statement | Mar 15, 2021 | — |
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.