Layoffs at Mersana Therapeutics
- Layoff events
- 2
- verified and sourced
- Roles reported
- Not stated
- no source gives a number
- Announced between
- Jul 2023 to May 2025
- Reported by
- U.S. SEC and Mersana Therapeutics
This page records what we could verify and source. It is not a complete record of every job cut at Mersana Therapeutics: 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 |
|---|---|---|---|---|---|---|
| Mersana Therapeutics |
Restructuring
Mersana Therapeutics announced a strategic restructuring and reprioritization plan expected to reduce its workforce by approximately 55% across functions. |
Not known | 55% | Company-wide |
1 source for Mersana Therapeutics |
|
| Mersana Therapeutics |
Pipeline setback
Mersana Therapeutics announced an approximately 50% workforce reduction after its lead ovarian-cancer program failed to meet the primary endpoint in Phase 1/2. |
Not known | 50% | United States |
1 source for Mersana Therapeutics |
Where this comes from
Every cut listed for Mersana Therapeutics 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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