Layoffs at IGM Biosciences
- Layoff events
- 3
- verified and sourced
- Roles reported
- At least 100
- events with no figure are not in this number
- Announced between
- Dec 2023 to May 2025
- Reported by
- U.S. SEC, WARNTracker / U.S. DOL WARN data, and Fierce Biotech
This page records what we could verify and source. It is not a complete record of every job cut at IGM Biosciences: 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 |
|---|---|---|---|---|---|---|
| IGM Biosciences |
Funding
IGM Biosciences disclosed an additional reduction of approximately 80% of its remaining workforce and closure of most lab and office facilities after Sanofi terminated its collaboration. |
Not known | 80% | Mountain View, United States |
1 source for IGM Biosciences |
|
| IGM Biosciences |
Pipeline setback
IGM Biosciences halted development of two autoimmune programs after disappointing interim data and announced a 73% workforce reduction; a later WARN notice fixed the Mountain View reduction at 100 employees. |
100 | Not known | Mountain View, United States |
2 sources for IGM Biosciences |
|
| IGM Biosciences |
Funding
IGM Biosciences announced a 22% workforce reduction to strengthen its financial runway. |
Not known | 22% | United States |
1 source for IGM Biosciences |
Where this comes from
Every cut listed for IGM Biosciences 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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