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 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 16, 2026 | Jun 12, 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 |
| 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 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Mar 16, 2026 | Mar 13, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 12, 2026 | Jan 12, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 10, 2025 | Nov 6, 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 1, 2024 | Feb 1, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 12, 2024 | Jan 12, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 8, 2024 | Jan 8, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 4, 2023 | Dec 4, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 13, 2023 | Nov 13, 2023 |
| 10-Q | Quarterly report | Nov 13, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 13, 2023 | Nov 13, 2023 |
| 8-K |
Current report
Material agreement
|
Nov 9, 2023 | Nov 5, 2023 |
| 10-Q | Quarterly report | Aug 8, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 8, 2023 | Aug 8, 2023 |
| 424B5 | Prospectus supplement | Jul 20, 2023 | — |
| 8-K |
Current report
Material agreement, Other events
|
Jul 20, 2023 | Jul 18, 2023 |
| 424B5 | Prospectus supplement | Jul 17, 2023 | — |
| 8-K |
Current report
Results of operations
|
Jul 17, 2023 | Jul 17, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jul 17, 2023 | Jul 16, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 8, 2023 | Jun 6, 2023 |
| 10-Q | Quarterly report | May 9, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 9, 2023 | May 9, 2023 |
| DEFA14A | Additional proxy material | Apr 28, 2023 | — |
| ARS | Annual report to shareholders | Apr 27, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Apr 27, 2023 | Jun 6, 2023 |
| 424B5 | Prospectus supplement | Apr 27, 2023 | — |
| 8-K |
Current report
Material agreement, Other events
|
Apr 27, 2023 | Apr 27, 2023 |
| PRE 14A | Preliminary proxy statement | Apr 14, 2023 | Jun 6, 2023 |
| S-8 | Employee stock plan registration | Mar 28, 2023 | — |
| 10-K | Annual report | Mar 27, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 27, 2023 | Mar 27, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Mar 15, 2023 | Mar 9, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Feb 1, 2023 | Feb 1, 2023 |
| 8-K |
Current report
Officer or director change
|
Jan 4, 2023 | Jan 3, 2023 |
| 10-Q | Quarterly report | Nov 14, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 14, 2022 | Nov 14, 2022 |
| 8-K |
Current report
Other events
|
Oct 24, 2022 | Oct 24, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 12, 2022 | Sep 12, 2022 |
| 10-Q | Quarterly report | Aug 15, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Aug 15, 2022 | Aug 12, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 1, 2022 | Aug 1, 2022 |
| EFFECT | Filing | Jul 8, 2022 | — |
| CORRESP | Letter to the SEC | Jul 6, 2022 | — |
| UPLOAD | Letter from the SEC | Jul 6, 2022 | — |
| S-3 | Shelf registration | Jul 1, 2022 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 21, 2022 | Jun 15, 2022 |
| 10-Q | Quarterly report | May 16, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 16, 2022 | May 16, 2022 |
| DEFA14A | Additional proxy material | Apr 27, 2022 | — |
| DEF 14A | Proxy statement | Apr 27, 2022 | Jun 15, 2022 |
| S-8 | Employee stock plan registration | Mar 29, 2022 | — |
| 10-K | Annual report | Mar 28, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 28, 2022 | Mar 28, 2022 |
| 8-K |
Current report
Officer or director change
|
Jan 3, 2022 | Jan 1, 2022 |
| 10-Q | Quarterly report | Nov 15, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 15, 2021 | Nov 15, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 10, 2021 | Nov 10, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 7, 2021 | Oct 7, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 31, 2021 | Aug 31, 2021 |
| 10-Q | Quarterly report | Aug 16, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 16, 2021 | Aug 16, 2021 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jul 7, 2021 | Jul 6, 2021 |
| S-8 | Employee stock plan registration | Jul 2, 2021 | — |
| 424B4 | Prospectus | Jul 2, 2021 | — |
| SEC STAFF LETTER | Filing | Jun 30, 2021 | — |
| EFFECT | Filing | Jun 30, 2021 | — |
| S-1MEF | Filing | Jun 30, 2021 | — |
| CERT | Filing | Jun 29, 2021 | — |
| CORRESP | Letter to the SEC | Jun 28, 2021 | — |
| CORRESP | Letter to the SEC | Jun 28, 2021 | — |
| 8-A12B | Filing | Jun 28, 2021 | — |
| CORRESP | Letter to the SEC | Jun 24, 2021 | — |
| S-1/A | Amended registration statement | Jun 24, 2021 | — |
| CORRESP | Letter to the SEC | Jun 16, 2021 | — |
| UPLOAD | Letter from the SEC | Jun 14, 2021 | — |
| CORRESP | Letter to the SEC | Jun 9, 2021 | — |
| S-1 | Registration statement | Jun 9, 2021 | — |
| SEC STAFF LETTER | Filing | Jun 7, 2021 | — |
| DRS/A | Filing | Jun 3, 2021 | — |
| UPLOAD | Letter from the SEC | May 25, 2021 | — |
| DRSLTR | Filing | May 14, 2021 | — |
| DRS/A | Filing | May 14, 2021 | — |
| UPLOAD | Letter from the SEC | May 10, 2021 | — |
| DRS | Filing | Apr 12, 2021 | — |
| D | Filing | May 15, 2013 | — |
Showing 143 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
- 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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Source: SEC EDGAR filings. This is company-reported data, not investment advice.