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 |
|---|---|---|---|
| 8-K |
Current report
Agreement ended, Exit or restructuring costs
|
Nov 5, 2026 | Nov 1, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 30, 2026 | Oct 30, 2026 |
| EFFECT | Filing | Oct 28, 2026 | — |
| S-3 | Shelf registration | Oct 26, 2026 | — |
| 10-Q | Quarterly report | Oct 26, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 26, 2026 | Oct 26, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 16, 2026 | Sep 16, 2026 |
| DRS | Filing | Aug 12, 2026 | — |
| S-8 | Employee stock plan registration | Aug 12, 2026 | — |
| 10-Q | Quarterly report | Aug 12, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 12, 2026 | Aug 12, 2026 |
| 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 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 16, 2026 | Jun 12, 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 |
| 8-K |
Current report
Shareholder vote results
|
Jun 3, 2026 | Jun 3, 2026 |
| 10-Q | Quarterly report | May 12, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 12, 2026 | May 12, 2026 |
| ARS | Annual report to shareholders | Apr 23, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 23, 2026 | — |
| DEF 14A | Proxy statement | Apr 23, 2026 | Dec 31, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 7, 2026 | — |
| EFFECT | Filing | Apr 1, 2026 | — |
| 424B3 | Prospectus | Apr 1, 2026 | — |
| CORRESP | Letter to the SEC | Mar 30, 2026 | — |
| UPLOAD | Letter from the SEC | Mar 30, 2026 | — |
| S-3 | Shelf registration | Mar 26, 2026 | — |
| S-8 | Employee stock plan registration | Mar 26, 2026 | — |
| 10-K | Annual report | Mar 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 26, 2026 | Mar 26, 2026 |
| 4 | Insider transaction | Mar 18, 2026 | Mar 16, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 17, 2026 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Mar 16, 2026 | Mar 13, 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 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 12, 2026 | 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 | — |
| 424B5 | Prospectus supplement | Nov 13, 2025 | — |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 12, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 6, 2025 |
| 3 | Initial insider ownership | Nov 10, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
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 | — |
| 10-Q | Quarterly report | Aug 12, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 12, 2025 | Aug 12, 2025 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jul 15, 2025 | Jul 15, 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 |
| 8-K |
Current report
Shareholder vote results
|
Jun 5, 2025 | Jun 4, 2025 |
| 10-Q | Quarterly report | May 13, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 13, 2025 | May 13, 2025 |
| ARS | Annual report to shareholders | Apr 23, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 23, 2025 | — |
| DEF 14A | Proxy statement | Apr 23, 2025 | Jun 4, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 31, 2025 | — |
| S-8 | Employee stock plan registration | Mar 27, 2025 | — |
| 10-K | Annual report | Mar 27, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 27, 2025 | Mar 27, 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 | — |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 12, 2024 | Nov 12, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 3 | Initial insider ownership | Nov 6, 2024 | Nov 5, 2024 |
| 10-Q | Quarterly report | Aug 13, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 13, 2024 | Aug 13, 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 |
| 8-K |
Current report
Shareholder vote results
|
Jun 5, 2024 | Jun 4, 2024 |
| 10-Q | Quarterly report | May 14, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 14, 2024 | May 14, 2024 |
| EFFECT | Filing | Apr 24, 2024 | — |
| CORRESP | Letter to the SEC | Apr 22, 2024 | — |
| ARS | Annual report to shareholders | Apr 22, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 22, 2024 | — |
| DEF 14A | Proxy statement | Apr 22, 2024 | Jun 4, 2024 |
| UPLOAD | Letter from the SEC | Apr 2, 2024 | — |
| S-3 | Shelf registration | Mar 27, 2024 | — |
| S-8 | Employee stock plan registration | Mar 27, 2024 | — |
| 10-K | Annual report | Mar 26, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 26, 2024 | Mar 26, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 19, 2024 | Mar 19, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
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 |
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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.