Acumen Pharmaceuticals, Inc. SEC filings ABOS
Acumen Pharmaceuticals, Inc. has 365 filings in SEC EDGAR's recent list, going back to May 15, 2013. Its latest annual report, Form ARS, was filed on Apr 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 26, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (agreement ended, exit or restructuring costs). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Jun 17, 2026 | Jun 15, 2026 |
| 144 | Notice of proposed sale | Jun 17, 2026 | — |
| 144 | Notice of proposed sale | Jun 16, 2026 | — |
| 144 | Notice of proposed sale | Jun 15, 2026 | — |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 144 | Notice of proposed sale | Jun 9, 2026 | — |
| 4 | Insider transaction | Jun 5, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 3, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 7, 2026 | — |
| 4 | Insider transaction | Mar 18, 2026 | Mar 16, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 17, 2026 | — |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 144 | Notice of proposed sale | Mar 6, 2026 | — |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 144 | Notice of proposed sale | Feb 27, 2026 | — |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 144 | Notice of proposed sale | Jan 28, 2026 | — |
| 144 | Notice of proposed sale | Jan 26, 2026 | — |
| 4 | Insider transaction | Jan 23, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 23, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 23, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 23, 2026 | Jan 21, 2026 |
| 4 | Insider transaction | Jan 23, 2026 | Jan 21, 2026 |
| 144 | Notice of proposed sale | Jan 23, 2026 | — |
| 144 | Notice of proposed sale | Jan 22, 2026 | — |
| 144 | Notice of proposed sale | Jan 22, 2026 | — |
| 144 | Notice of proposed sale | Jan 22, 2026 | — |
| 144 | Notice of proposed sale | Jan 22, 2026 | — |
| 144 | Notice of proposed sale | Jan 22, 2026 | — |
| 4 | Insider transaction | Jan 21, 2026 | Jan 20, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 16, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 16, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 16, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 16, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 16, 2026 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 16, 2026 |
| 144 | Notice of proposed sale | Jan 21, 2026 | — |
| 144 | Notice of proposed sale | Jan 21, 2026 | — |
| 144 | Notice of proposed sale | Jan 21, 2026 | — |
| 144 | Notice of proposed sale | Jan 21, 2026 | — |
| 144 | Notice of proposed sale | Jan 21, 2026 | — |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 144 | Notice of proposed sale | Jan 12, 2026 | — |
| 144 | Notice of proposed sale | Jan 12, 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 9, 2026 | — |
| 144 | Notice of proposed sale | Jan 9, 2026 | — |
| 144 | Notice of proposed sale | Jan 8, 2026 | — |
| 144 | Notice of proposed sale | Jan 8, 2026 | — |
| 144 | Notice of proposed sale | Jan 8, 2026 | — |
| 144 | Notice of proposed sale | Jan 8, 2026 | — |
| 144 | Notice of proposed sale | Jan 8, 2026 | — |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 144 | Notice of proposed sale | Jan 7, 2026 | — |
| 144 | Notice of proposed sale | Jan 7, 2026 | — |
| 144 | Notice of proposed sale | Jan 7, 2026 | — |
| 144 | Notice of proposed sale | Jan 7, 2026 | — |
| 144 | Notice of proposed sale | Jan 7, 2026 | — |
| 144 | Notice of proposed sale | Jan 7, 2026 | — |
| 144 | Notice of proposed sale | Jan 6, 2026 | — |
| 144 | Notice of proposed sale | Jan 6, 2026 | — |
| 144 | Notice of proposed sale | Jan 6, 2026 | — |
| 144 | Notice of proposed sale | Jan 6, 2026 | — |
| 144 | Notice of proposed sale | Jan 6, 2026 | — |
| 144 | Notice of proposed sale | Jan 5, 2026 | — |
| 144 | Notice of proposed sale | Jan 5, 2026 | — |
| 144 | Notice of proposed sale | Jan 5, 2026 | — |
| 144 | Notice of proposed sale | Jan 5, 2026 | — |
| 144 | Notice of proposed sale | Jan 5, 2026 | — |
| 4 | Insider transaction | Nov 10, 2025 | Nov 6, 2025 |
| 3 | Initial insider ownership | Nov 10, 2025 | Nov 6, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 4, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2025 | — |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 31, 2025 | — |
| 4 | Insider transaction | Jan 23, 2025 | Jan 21, 2025 |
| 4 | Insider transaction | Jan 23, 2025 | Jan 21, 2025 |
| 4 | Insider transaction | Jan 23, 2025 | Jan 21, 2025 |
| 4 | Insider transaction | Jan 23, 2025 | Jan 21, 2025 |
| 4 | Insider transaction | Jan 23, 2025 | Jan 21, 2025 |
| 144 | Notice of proposed sale | Jan 23, 2025 | — |
| 144 | Notice of proposed sale | Jan 21, 2025 | — |
| 144 | Notice of proposed sale | Jan 21, 2025 | — |
| 144 | Notice of proposed sale | Jan 21, 2025 | — |
| 144 | Notice of proposed sale | Jan 21, 2025 | — |
| 144 | Notice of proposed sale | Jan 21, 2025 | — |
| 4 | Insider transaction | Jan 7, 2025 | Jan 3, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 6, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 6, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 3, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 3, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 3, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 3, 2025 |
| 144 | Notice of proposed sale | Jan 3, 2025 | — |
| 144 | Notice of proposed sale | Jan 3, 2025 | — |
| 144 | Notice of proposed sale | Jan 3, 2025 | — |
| 144 | Notice of proposed sale | Jan 3, 2025 | — |
| 144 | Notice of proposed sale | Jan 3, 2025 | — |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 3 | Initial insider ownership | Nov 6, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 10, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 10, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 10, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 10, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 10, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 10, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 10, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 6, 2024 | — |
| 4 | Insider transaction | Feb 1, 2024 | Feb 1, 2024 |
| 3 | Initial insider ownership | Feb 1, 2024 | Feb 1, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 24, 2024 | — |
| 4 | Insider transaction | Jan 19, 2024 | Jan 19, 2024 |
| 4 | Insider transaction | Jan 19, 2024 | Jan 19, 2024 |
| 4 | Insider transaction | Jan 19, 2024 | Jan 18, 2024 |
| 4 | Insider transaction | Jan 19, 2024 | Jan 18, 2024 |
| 4 | Insider transaction | Jan 19, 2024 | Jan 18, 2024 |
| 144 | Notice of proposed sale | Jan 19, 2024 | — |
| 144 | Notice of proposed sale | Jan 19, 2024 | — |
| 144 | Notice of proposed sale | Jan 18, 2024 | — |
| 144 | Notice of proposed sale | Jan 18, 2024 | — |
| 144 | Notice of proposed sale | Jan 18, 2024 | — |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Aug 18, 2023 | Aug 17, 2023 |
| 144 | Notice of proposed sale | Aug 17, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 25, 2023 | — |
| 4 | Insider transaction | Jul 25, 2023 | Jul 21, 2023 |
| 4 | Insider transaction | Jun 13, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 7, 2023 | Jun 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 | Jan 18, 2023 | Jan 17, 2023 |
| 4 | Insider transaction | Jan 18, 2023 | Jan 17, 2023 |
| 4 | Insider transaction | Jan 18, 2023 | Jan 17, 2023 |
| 4 | Insider transaction | Jan 18, 2023 | Jan 17, 2023 |
| 4 | Insider transaction | Jan 18, 2023 | Jan 17, 2023 |
| 4 | Insider transaction | Jan 4, 2023 | Jan 4, 2023 |
| 3 | Initial insider ownership | Jan 4, 2023 | Jan 4, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Dec 29, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 7, 2022 | — |
| 4 | Insider transaction | Sep 7, 2022 | Sep 6, 2022 |
| 3 | Initial insider ownership | Sep 7, 2022 | Sep 6, 2022 |
| 4 | Insider transaction | Jun 21, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Apr 4, 2022 | Apr 1, 2022 |
| 3 | Initial insider ownership | Apr 4, 2022 | Apr 1, 2022 |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 15, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 4, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jan 27, 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 | Dec 2, 2021 | Nov 30, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 13, 2021 | — |
| SC 13D | Ownership over 5% (active) | Jul 16, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Jul 13, 2021 | — |
| 4 | Insider transaction | Jul 8, 2021 | Jul 6, 2021 |
| 4 | Insider transaction | Jul 8, 2021 | Jul 6, 2021 |
| 4 | Insider transaction | Jul 8, 2021 | Jul 6, 2021 |
| 4 | Insider transaction | Jul 8, 2021 | Jul 6, 2021 |
| 4 | Insider transaction | Jul 8, 2021 | Jul 6, 2021 |
| 4 | Insider transaction | Jul 8, 2021 | Jul 6, 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
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- ABOS (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Newton, MA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1576885
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.