Astellas Gene Therapies, Inc. layoff notices at a glance
Astellas Gene Therapies, Inc. has filed 4 WARN notices with the California Employment Development Department between Jun 19, 2024 and Jan 29, 2025, naming 48 workers. All were layoffs rather than closures; 4 permanent, 0 temporary. The largest single notice named 21 workers in San Mateo County on Jan 29, 2025. Its latest notice, 21 workers in San Mateo County dated Jan 29, 2025, was 0.4% of the 5,840 workers named in all 57 San Mateo County notices of fiscal year 2025-2026. 3 of the notices show fewer than 60 days between the notice date and the effective date (see how to read this).
Every notice, newest first
| Notice date | Effective | County | City | Workers | Type | Days notice |
|---|---|---|---|---|---|---|
| Jan 29, 2025 | Jan 29, 2025 | San Mateo | South San Francisco | 21 | Layoff, permanent | 0 under 60 |
| Oct 23, 2024 | Jan 1, 2025 | San Mateo | South San Francisco | 10 | Layoff, permanent | 70 |
| Aug 27, 2024 | Oct 21, 2024 | San Mateo | South San Francisco | 7 | Layoff, permanent | 55 under 60 |
| Jun 19, 2024 | Jun 19, 2024 | San Mateo | South San Francisco | 10 | Layoff, permanent | 0 under 60 |
Sites named on the notices
- 534 Eccles Avenue South San Francisco CA 94080 (Jan 29, 2025, 21 workers)
Where the notices landed
- San Mateo County4 notices, 48 workers
- South San Francisco4 notices, 48 workers
Local pages: San Mateo County employment law guide.
How to read this record
Notice date is the date on the employer's letter. Effective is the first day of separations it announced. Days notice is the gap between them; California Labor Code 1401 calls for 60 days from a covered employer, and section 1402 makes a short notice worth a day of pay and benefits for every day it is short, up to 60.
For Astellas Gene Therapies, Inc. the shortest gap shown is 0 days. That is a reason to check whether an exception in 1401(c) or 1402.5 applied, whether the workers received the letter earlier than the EDD did, and whether anyone was let go before the effective date. It is not, by itself, a finding against the employer.
Full statute walk-through: the California 60-day rule, section by section.
If you work, or worked, at Astellas Gene Therapies, Inc.
Keep the notice, every email about the selection, and your final pay stub. A free review covers four things in one call: whether the notice period was honored and paid, whether final pay and vacation payout arrived on time, whether the selection pattern raises an age, pregnancy or leave, or retaliation question, and what a proposed severance release is actually worth before you sign it. Call (800) 371-3088 or send the notice.
Source: California EDD WARN reports, fiscal years 2023-2024 to 2025-2026. Record last checked against the EDD on Oct 30, 2026. Back to the layoff tracker.
About this data: Notices come from the California Employment Development Department WARN reports (fiscal years 2014-2015 to today) and are reloaded from the EDD every Tuesday and Thursday. Employer names appear as the employer wrote them on the notice, grouped where the names clearly refer to the same company. A notice is not a finding that any law was broken. This page is general information, not legal advice about your situation.