Genentech has 5 WARN notices on file in California since May 2025, covering 592 workers, according to official state records. The most recent notice was recorded on Jul 1, 2026, with an effective date of Jul 29, 2026.
WARN notices cover planned layoffs and closures that meet the legal thresholds at a single site, so they do not show every job cut. Checked every hour.
Genentech layoffs over time
Workers affected each month. Hover or tap a bar.
Hover or tap a month to see the details.
Sources: SEC filings, company statements and state WARN notices. Announced cuts and WARN notices can describe the same layoff.
Every Genentech WARN notice
| Date | State | Location | Workers | Type | Effective |
|---|---|---|---|---|---|
| Jul 1, 2026 | CA | San Mateo County | 103 | Layoff Permanent | Jul 29, 2026 |
| Feb 4, 2026 | CA | San Mateo County | 141 | Layoff Permanent | Aug 18, 2025 |
| Oct 27, 2025 | CA | San Mateo County | 118 | Layoff Permanent | Nov 28, 2025 |
| Jul 17, 2025 | CA | San Mateo County | 87 | Layoff Permanent | Sep 15, 2025 |
| May 29, 2025 | CA | San Mateo County | 143 | Layoff Permanent | Jul 14, 2025 |
Date is when the state received or processed the notice. Company names and locations as filed.
Genentech layoffs FAQ
How many people has Genentech laid off?
According to WARN notices filed in California, Genentech has reported layoffs or closures affecting 592 workers in 5 notices since May 2025. WARN notices only cover qualifying layoffs at a single site, so the company total may be different.
When was the latest Genentech WARN notice?
The most recent notice in our records is dated Jul 1, 2026 and covers 103 workers in San Mateo County, with an effective date of Jul 29, 2026.
Where does this Genentech layoff data come from?
From the official WARN notice records published by California state agencies, which we check twice a day. Each notice is shown as filed.
Other recent WARN notices in California
- Intel layoffs (latest notice Oct 22, 2026)
- 24Hr Homecare layoffs (latest notice Oct 22, 2026)
- Georg Fischer Signet layoffs (latest notice Oct 22, 2026)
- Dreyer's Grand Ice Cream layoffs (latest notice Oct 21, 2026)
- eBay layoffs (latest notice Oct 21, 2026)
- DesigneRx Pharmaceuticals layoffs (latest notice Oct 21, 2026)
Related
- Layoffs by company: all employers we track
- Layoffs today
- WARN notices tracker by state
- Layoff notice requirements by state
- How to negotiate severance
- Health insurance and COBRA after a layoff
Sources
Genentech layoffs on the map, 2026
WARN notices filed by Genentech with the states we track. Tap a state to see each notice.
Tap a red state for details.
California: 244 workers, 2 notices
- Jul 1 · San Mateo County · 103 workers · Layoff Permanent
- Feb 4 · San Mateo County · 141 workers · Layoff Permanent
Genentech WARN notices by month, 2026
Source: WARN notices published by state labor departments, collected by GoLayoffs. WARN counts workers at specific sites and does not include every job cut a company announces. See all notices in the WARN tracker.