Layoffs at Arena BioWorks
- Layoff events
- 2
- verified and sourced
- Roles reported
- 72
- roles in total
- Announced between
- Aug 2025 to Nov 2025
- Reported by
- STAT and Fierce Biotech
This page records what we could verify and source. It is not a complete record of every job cut at Arena BioWorks: a layoff nobody published and nobody sent us is a layoff that is not on this page.
| Company | What happened | Roles reported | Share of staff | Where | Announced | Sources |
|---|---|---|---|---|---|---|
| Arena BioWorks |
Site closure
Arena BioWorks announced a full shutdown less than three months after an earlier reduction, with approximately 50 remaining staff expected to be laid off. |
50 | Not known | Arena BioWorks research institute, Cambridge, United States |
2 sources for Arena BioWorks |
|
| Arena BioWorks |
Restructuring
Arena BioWorks cut 22 roles, roughly 30% of its workforce, while deprioritizing cell and gene therapy work and reorganizing its research portfolio. |
22 | Not known | Cambridge, United States |
1 source for Arena BioWorks |
Where this comes from
Every cut listed for Arena BioWorks was entered by a person who checked it against a filing or a named report. Nothing is scraped and nothing publishes itself. What is not here is what we have not verified, not what did not happen.
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