Fulcrum Therapeutics, Inc. SEC filings FULC
Fulcrum Therapeutics, Inc. has 520 filings in SEC EDGAR's recent list, going back to Jul 25, 2016. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Jul 30, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 17, 2026 (material agreement, unregistered share sale, change in control, officer or director change, regulation fd disclosure). 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 27, 2026 | — |
| 144 | Notice of proposed sale | Sep 2, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 3, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| 4 | Insider transaction | Jul 20, 2026 | Jul 16, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 15, 2026 | — |
| 4 | Insider transaction | Jul 15, 2026 | Jul 13, 2026 |
| 3 | Initial insider ownership | Jul 15, 2026 | Jul 13, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 144 | Notice of proposed sale | Jun 26, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 25, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 25, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 10, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 4 | Insider transaction | May 1, 2026 | Apr 23, 2026 |
| 3 | Initial insider ownership | May 1, 2026 | Apr 23, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4/A | Filing | Feb 4, 2026 | Jan 2, 2026 |
| 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 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 2, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 144 | Notice of proposed sale | Dec 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Dec 10, 2025 | — |
| 4 | Insider transaction | Dec 10, 2025 | Dec 8, 2025 |
| 144 | Notice of proposed sale | Dec 8, 2025 | — |
| 4 | Insider transaction | Nov 21, 2025 | Nov 19, 2025 |
| 144 | Notice of proposed sale | Nov 19, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 17, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2025 | — |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | May 9, 2025 | May 8, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 2, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 17, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 12, 2025 | — |
| 4 | Insider transaction | Jan 28, 2025 | Jan 24, 2025 |
| 4 | Insider transaction | Jan 28, 2025 | Jan 24, 2025 |
| 4 | Insider transaction | Jan 28, 2025 | Jan 24, 2025 |
| 4 | Insider transaction | Jan 28, 2025 | Jan 24, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 6, 2025 | — |
| SC 13G | Ownership over 5% (passive) | Dec 6, 2024 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 14, 2024 | Nov 12, 2024 |
| 3 | Initial insider ownership | Nov 14, 2024 | Nov 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 8, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Oct 21, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 7, 2024 | — |
| 3 | Initial insider ownership | Sep 23, 2024 | Sep 12, 2024 |
| SC 13G | Ownership over 5% (passive) | Sep 20, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 16, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 23, 2024 | — |
| 4 | Insider transaction | Aug 23, 2024 | Aug 21, 2024 |
| 4 | Insider transaction | Jul 8, 2024 | Jul 3, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 3 | Initial insider ownership | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
| 3 | Initial insider ownership | Mar 20, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Mar 8, 2024 | Mar 8, 2024 |
| 144 | Notice of proposed sale | Mar 8, 2024 | — |
| 4 | Insider transaction | Mar 5, 2024 | Mar 4, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2024 | — |
| 4 | Insider transaction | Jan 30, 2024 | Jan 26, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 26, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 26, 2024 |
| 4 | Insider transaction | Jan 19, 2024 | Jan 17, 2024 |
| 4 | Insider transaction | Aug 9, 2023 | Aug 7, 2023 |
| 3 | Initial insider ownership | Aug 9, 2023 | Aug 7, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 7, 2023 | — |
| 3 | Initial insider ownership | Jul 3, 2023 | Jul 1, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 27, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 27, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 27, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 27, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 27, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 27, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 27, 2023 |
| 4 | Insider transaction | May 11, 2023 | May 10, 2023 |
| 4 | Insider transaction | Apr 28, 2023 | Apr 26, 2023 |
| 4 | Insider transaction | Apr 28, 2023 | Apr 26, 2023 |
| SC 13G | Ownership over 5% (passive) | Mar 6, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| 4 | Insider transaction | Feb 13, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 13, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 13, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 13, 2023 | Feb 9, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2023 | — |
| 4 | Insider transaction | Jan 24, 2023 | Jan 20, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2023 | — |
| 4 | Insider transaction | Jan 13, 2023 | Jan 13, 2023 |
| 4 | Insider transaction | Jan 6, 2023 | Jan 4, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 6, 2023 | — |
| 4 | Insider transaction | Dec 29, 2022 | Dec 27, 2022 |
| 4 | Insider transaction | Dec 21, 2022 | Dec 19, 2022 |
| 4 | Insider transaction | Dec 16, 2022 | Dec 14, 2022 |
| 4 | Insider transaction | Dec 15, 2022 | Dec 13, 2022 |
| 4 | Insider transaction | Nov 9, 2022 | Nov 7, 2022 |
| 3 | Initial insider ownership | Nov 9, 2022 | Nov 7, 2022 |
| 3 | Initial insider ownership | Aug 26, 2022 | Aug 16, 2022 |
| SC 13G | Ownership over 5% (passive) | Aug 26, 2022 | — |
| 4 | Insider transaction | Aug 11, 2022 | Aug 9, 2022 |
| 4 | Insider transaction | Aug 11, 2022 | Aug 9, 2022 |
| 3 | Initial insider ownership | Aug 11, 2022 | Aug 9, 2022 |
| 4 | Insider transaction | Jul 19, 2022 | Jul 15, 2022 |
| 4 | Insider transaction | Jun 29, 2022 | Jun 27, 2022 |
| 4 | Insider transaction | Jun 29, 2022 | Jun 27, 2022 |
| 4 | Insider transaction | Jun 29, 2022 | Jun 27, 2022 |
| 4 | Insider transaction | Jun 29, 2022 | Jun 27, 2022 |
| 4 | Insider transaction | Jun 29, 2022 | Jun 27, 2022 |
| 4 | Insider transaction | Jun 29, 2022 | Jun 27, 2022 |
| 4 | Insider transaction | Jun 29, 2022 | Jun 27, 2022 |
| SC 13G | Ownership over 5% (passive) | Jun 22, 2022 | — |
| 4 | Insider transaction | Jun 8, 2022 | Jun 7, 2022 |
| 4 | Insider transaction | Jun 6, 2022 | Jun 2, 2022 |
| 4 | Insider transaction | May 10, 2022 | May 6, 2022 |
| 4 | Insider transaction | Apr 11, 2022 | Apr 7, 2022 |
| 4 | Insider transaction | Apr 5, 2022 | Apr 1, 2022 |
| 3 | Initial insider ownership | Mar 14, 2022 | Mar 11, 2022 |
| SC 13G | Ownership over 5% (passive) | Mar 10, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Mar 9, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 4, 2022 | — |
| 4 | Insider transaction | Jan 21, 2022 | Jan 19, 2022 |
| 4 | Insider transaction | Jan 21, 2022 | Jan 19, 2022 |
| 4 | Insider transaction | Jan 21, 2022 | Jan 19, 2022 |
| 4 | Insider transaction | Jan 21, 2022 | Jan 19, 2022 |
| 4 | Insider transaction | Jan 21, 2022 | Jan 19, 2022 |
| 4 | Insider transaction | Jan 10, 2022 | Jan 3, 2022 |
| 3 | Initial insider ownership | Jan 10, 2022 | Jan 3, 2022 |
| 5 | Annual insider ownership | Jan 7, 2022 | Dec 31, 2021 |
| 4 | Insider transaction | Dec 9, 2021 | Dec 8, 2021 |
| 3 | Initial insider ownership | Dec 9, 2021 | Dec 8, 2021 |
| 4 | Insider transaction | Nov 12, 2021 | Nov 10, 2021 |
| 4 | Insider transaction | Nov 12, 2021 | Nov 10, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 27, 2021 | — |
| 4 | Insider transaction | Sep 24, 2021 | Sep 22, 2021 |
| 4 | Insider transaction | Sep 24, 2021 | Sep 22, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 10, 2021 | — |
| 4 | Insider transaction | Aug 12, 2021 | Aug 10, 2021 |
| 4 | Insider transaction | Aug 12, 2021 | Aug 10, 2021 |
| SC 13G | Ownership over 5% (passive) | Aug 10, 2021 | — |
| 4 | Insider transaction | Jun 29, 2021 | Jun 28, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 28, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 28, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 28, 2021 |
| 4 | Insider transaction | Jun 11, 2021 | Jun 9, 2021 |
| 4 | Insider transaction | Jun 11, 2021 | Jun 9, 2021 |
| 4 | Insider transaction | Jun 11, 2021 | Jun 9, 2021 |
| 4 | Insider transaction | Jun 11, 2021 | Jun 9, 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- FULC (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Cambridge, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1680581
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.