Caribou Biosciences, Inc. SEC filings CRBU
Caribou Biosciences, Inc. has 326 filings in SEC EDGAR's recent list, going back to Sep 23, 2014. Its latest annual report, Form ARS, was filed on Apr 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 27, 2026 | — |
| 4 | Insider transaction | Feb 27, 2026 | Feb 25, 2026 |
| 144 | Notice of proposed sale | Feb 25, 2026 | — |
| 144 | Notice of proposed sale | Feb 25, 2026 | — |
| 144 | Notice of proposed sale | Feb 25, 2026 | — |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 20, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 16, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 30, 2025 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Apr 25, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 17, 2025 | — |
| 4 | Insider transaction | Mar 17, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Jan 30, 2025 | Jan 29, 2025 |
| 4 | Insider transaction | Jan 10, 2025 | Jan 10, 2025 |
| 3 | Initial insider ownership | Jan 10, 2025 | Jan 2, 2025 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 6, 2024 | — |
| 4 | Insider transaction | Nov 22, 2024 | Nov 20, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 17, 2024 | — |
| 3 | Initial insider ownership | Oct 4, 2024 | Sep 27, 2024 |
| 4 | Insider transaction | Aug 20, 2024 | Aug 19, 2024 |
| 3 | Initial insider ownership | Aug 20, 2024 | Aug 12, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 23, 2024 | — |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| 4 | Insider transaction | Feb 22, 2024 | Feb 20, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| 4 | Insider transaction | Feb 8, 2024 | Feb 6, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2024 | — |
| 3/A | Form 3/a | Jan 10, 2024 | Jan 1, 2024 |
| 4 | Insider transaction | Jan 9, 2024 | Jan 8, 2024 |
| 3 | Initial insider ownership | Jan 9, 2024 | Jan 1, 2024 |
| SC 13G | Ownership over 5% (passive) | Jan 8, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jul 20, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Jul 10, 2023 | — |
| 4 | Insider transaction | Jun 9, 2023 | Jun 8, 2023 |
| 4 | Insider transaction | Mar 22, 2023 | Mar 20, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 3, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 3, 2023 | — |
| 4 | Insider transaction | Jan 20, 2023 | Jan 19, 2023 |
| 4 | Insider transaction | Dec 2, 2022 | Dec 2, 2022 |
| 4 | Insider transaction | Oct 7, 2022 | Oct 6, 2022 |
| 4 | Insider transaction | Sep 16, 2022 | Sep 15, 2022 |
| 4 | Insider transaction | Aug 26, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 24, 2022 | Aug 22, 2022 |
| 4 | Insider transaction | Aug 24, 2022 | Aug 22, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 1, 2022 | — |
| 4 | Insider transaction | May 18, 2022 | May 18, 2022 |
| 4 | Insider transaction | May 17, 2022 | May 13, 2022 |
| 3 | Initial insider ownership | May 12, 2022 | May 11, 2022 |
| 4 | Insider transaction | May 10, 2022 | May 9, 2022 |
| 4/A | Form 4/a submission | May 10, 2022 | Jan 26, 2022 |
| 4 | Insider transaction | May 6, 2022 | May 5, 2022 |
| 4 | Insider transaction | Mar 17, 2022 | Mar 15, 2022 |
| 4 | Insider transaction | Mar 7, 2022 | Mar 4, 2022 |
| SC 13G | Ownership over 5% (passive) | Mar 1, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| 5 | Annual insider ownership | Feb 9, 2022 | Dec 31, 2021 |
| 4 | Insider transaction | Feb 8, 2022 | Feb 8, 2022 |
| SC 13D | Ownership over 5% (active) | Feb 4, 2022 | — |
| 4 | Insider transaction | Jan 27, 2022 | Jan 26, 2022 |
| 4 | Insider transaction | Jan 25, 2022 | Jan 25, 2022 |
| 3 | Initial insider ownership | Jan 24, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 12, 2022 | Jan 11, 2022 |
| 4/A | Form 4/a submission | Dec 22, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 21, 2021 | Dec 20, 2021 |
| 4 | Insider transaction | Dec 8, 2021 | Dec 7, 2021 |
| 4 | Insider transaction | Nov 16, 2021 | Nov 15, 2021 |
| 4 | Insider transaction | Nov 15, 2021 | Nov 11, 2021 |
| 3 | Initial insider ownership | Nov 10, 2021 | Nov 4, 2021 |
| 3 | Initial insider ownership | Nov 8, 2021 | Nov 8, 2021 |
| 4 | Insider transaction | Oct 21, 2021 | Oct 20, 2021 |
| 4 | Insider transaction | Oct 13, 2021 | Oct 12, 2021 |
| 4 | Insider transaction | Oct 12, 2021 | Oct 11, 2021 |
| 4 | Insider transaction | Oct 4, 2021 | Oct 1, 2021 |
| 3 | Initial insider ownership | Oct 1, 2021 | Sep 24, 2021 |
| 4 | Insider transaction | Sep 9, 2021 | Sep 8, 2021 |
| 3 | Initial insider ownership | Aug 31, 2021 | Aug 24, 2021 |
| SC 13G | Ownership over 5% (passive) | Aug 6, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Aug 3, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Jul 29, 2021 | — |
| 4 | Insider transaction | Jul 29, 2021 | Jul 27, 2021 |
| 3 | Initial insider ownership | Jul 23, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| 3 | Initial insider ownership | Jul 22, 2021 | Jul 22, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 25, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 16, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2018 | — |
| 4 | Insider transaction | Jan 30, 2018 | Jan 29, 2018 |
| 4 | Insider transaction | Sep 13, 2017 | Sep 13, 2017 |
| SC 13G | Ownership over 5% (passive) | Feb 28, 2017 | — |
| 4 | Insider transaction | May 11, 2016 | May 11, 2016 |
| 3 | Initial insider ownership | May 5, 2016 | May 5, 2016 |
Showing 166 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.
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Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- CRBU (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Berkeley, CA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1619856
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.