About 52 employees are affected, about 90% of its workforce, according to Acumen Pharmaceuticals, Inc.'s latest layoff filing, on November 5, 2026. As of November 6, 2026, Acumen Pharmaceuticals, Inc. has reported this one exit or restructuring plan to the SEC on Form 8-K under Item 2.05. No WARN notice under its name is on file in the states covered here (Form 8-K, November 5, 2026).
Acumen Pharmaceuticals, Inc. announced layoffs of about 52 employees on Nov 5. 12 companies announced layoffs this week.
Companies cutting jobs this week. Before you unlock: the company, the number of employees and what is inside. After: every way we found to reach the company. No individual is named in a layoff.
| Artiva Biotherapeutics, Inc. | announced layoffs | |
| Eos Energy Enterprises, Inc. | announced layoffs | |
| SOUNDHOUND AI, INC. | announced layoffs | |
| Portillo's Inc. | announced layoffs | |
| Acumen Pharmaceuticals, Inc. | announced layoffs of about 52 employees |
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Acumen Pharmaceuticals, Inc. reported 1 exit or restructuring plan on Form 8-K under Item 2.05, 1 of 1 stating how many employees or positions are affected. Each fact below is the filing's own sentence, quoted and linked. No WARN notice under this company's name is on file in the states covered here.
Did Acumen Pharmaceuticals have layoffs in 2026? What its filings say
Acumen Pharmaceuticals, Inc. (CIK 1576885) reported 1 exit or restructuring plan to the SEC on Form 8-K under Item 2.05. The sentences below are quoted from the filings as written.
Form 8-K filed 2026-11-05
Employees affected
In connection with these decisions, on November 1, 2026, the board of directors of the Company (the "Board") approved certain steps to implement cash conservation measures, including a reduction of the Company's workforce by 52 full-time employees, or approximately 90% of the Company's current employee base (the "Restructuring").
Expected charges
As a result of the Restructuring, the Company estimates that it will incur approximately $7.75 million in costs resulting from cash expenditures consisting of one-time severance payments and related expenses.
Timing
The Restructuring is expected to be substantially complete by early 2027.
Also on the record for Acumen Pharmaceuticals, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 7, 2026 | Stake report, Schedule 13G, by James B. Murray Jr. | 5% of the class | 5%+ stakes | Source |
| March 17, 2026 | Stake report, Schedule 13D/A, by RA Capital Management, L.P. | 29.5% of the class | 5%+ stakes | Source |
| November 4, 2025 | Stake report, Schedule 13G/A, by Franklin Resources, Inc. | 3.8% of the class | 5%+ stakes | Source |
| August 13, 2025 | Stake report, Schedule 13G/A, by Sands Capital Alternatives, LLC | 5.6% of the class | 5%+ stakes | Source |
Keep reading
More on Acumen Pharmaceuticals, Inc. and the records around it.
Acumen Pharmaceuticals, Inc. elsewhere on the record
- 5%+ stake filings Apr 2026
- Who owns it
Companies that share a holder
- Franklin Resources, Inc. also filed stake reports on 41 other companies: Adicet Bio, Inc. (Oct 2026), ALBEMARLE CORPORATION (Oct 2026), Andersen Group Inc. (Oct 2026)
- RA Capital Management, L.P. also filed stake reports on 100 other companies: Bambusa Therapeutics, Inc. (Nov 2026), SOLID BIOSCIENCES INC. (Nov 2026), LENZ THERAPEUTICS, INC. (Nov 2026)
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Public companies must also report to the SEC, on Form 8-K under Item 2.05, when they commit to an exit or restructuring plan that will cost them material charges, which is how most large layoffs and closures by listed companies are disclosed. Those filings are national, so they cover companies in every state. Each sentence shown from one is quoted exactly and linked to the filing; where a filing does not state a figure, none is shown.
Where this comes from
Employers covered by the federal WARN Act, and by the stricter laws some states add, must give written notice before a mass layoff or a site closure. The state labor department publishes those notices. Every row here is one of them, taken from that state's own published file and linked to it, so each figure can be checked at the source.
A notice states the employer, the location, the number of employees affected, and when the layoff or closure takes effect. It does not state a reason, and neither does this page. Where a company also appears in SEC filings under the same name and in the same state, its recorded fundraising is shown alongside, as a matter of record rather than as an explanation. New Jersey and Pennsylvania list a notice under the month it was posted or received, not the day, so their notices show a month. Tennessee gives the county rather than the city.
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