Genentech Layoffs
Layoff Detector tracks official WARN Act notices filed by Genentech across U.S. states. There are 20 filings on record, affecting 3,228 workers from 2017 to 2025.
Total filings
20
Workers affected
3,228
States
1
Latest filing
Oct 24, 2025
Filings
| Location | Employees Affected | Notice Date | Type | Source |
|---|---|---|---|---|
| California | 118 | Oct 24, 2025 | Layoff Permanent | — |
| California | 118 | Oct 24, 2025 | Layoff Permanent | — |
| California | 87 | Jul 16, 2025 | Layoff Permanent | — |
| California | 87 | Jul 16, 2025 | Layoff Permanent | — |
| California | 141 | Jun 26, 2025 | Layoff Permanent | — |
| California | 141 | Jun 26, 2025 | Layoff Permanent | — |
| California | 143 | May 29, 2025 | Layoff Permanent | — |
| California | 143 | May 29, 2025 | Layoff Permanent | — |
| California | 93 | Aug 22, 2024 | Layoff Permanent | — |
| California | 93 | Aug 22, 2024 | Layoff Permanent | — |
| California | 436 | Apr 3, 2024 | Layoff Permanent | — |
| California | 436 | Apr 3, 2024 | Layoff Permanent | — |
| California | 271 | Mar 23, 2023 | Layoff Permanent | — |
| California | 271 | Mar 23, 2023 | Layoff Permanent | — |
| South San Francisco, California | 114 | Feb 13, 2020 | Closure Permanent | — |
| South San Francisco, California | 114 | Feb 13, 2020 | Closure Permanent | — |
| South San, California | 83 | Nov 29, 2018 | Layoff Permanent | — |
| South San, California | 83 | Nov 29, 2018 | Layoff Permanent | — |
| Vacaville, California | 128 | Nov 1, 2017 | Layoff Permanent | — |
| Vacaville, California | 128 | Nov 1, 2017 | Layoff Permanent | — |
California
Layoff Permanent118 employeesOct 24, 2025—
California
Layoff Permanent118 employeesOct 24, 2025—
California
Layoff Permanent87 employeesJul 16, 2025—
California
Layoff Permanent87 employeesJul 16, 2025—
California
Layoff Permanent141 employeesJun 26, 2025—
California
Layoff Permanent141 employeesJun 26, 2025—
California
Layoff Permanent143 employeesMay 29, 2025—
California
Layoff Permanent143 employeesMay 29, 2025—
California
Layoff Permanent93 employeesAug 22, 2024—
California
Layoff Permanent93 employeesAug 22, 2024—
California
Layoff Permanent436 employeesApr 3, 2024—
California
Layoff Permanent436 employeesApr 3, 2024—
California
Layoff Permanent271 employeesMar 23, 2023—
California
Layoff Permanent271 employeesMar 23, 2023—
South San Francisco, California
Closure Permanent114 employeesFeb 13, 2020—
South San Francisco, California
Closure Permanent114 employeesFeb 13, 2020—
South San, California
Layoff Permanent83 employeesNov 29, 2018—
South San, California
Layoff Permanent83 employeesNov 29, 2018—
Vacaville, California
Layoff Permanent128 employeesNov 1, 2017—
Vacaville, California
Layoff Permanent128 employeesNov 1, 2017—
Search all WARN notices or browse data coverage by state.
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