Pfizer layoff notices at a glance
Pfizer has filed 7 WARN notices with the California Employment Development Department between Feb 4, 2015 and Apr 4, 2025, naming 712 workers. 3 were closures and 4 were layoffs; 3 permanent, 0 temporary, 4 with the type left blank. The largest single notice named 200 workers in San Francisco County on Dec 7, 2016. Its latest notice, 56 workers in San Diego County dated Apr 4, 2025, was 1.2% of the 4,695 workers named in all 102 San Diego County notices of fiscal year 2024-2025. 2 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 |
|---|---|---|---|---|---|---|
| Apr 4, 2025 | Jun 2, 2025 | San Diego | San Diego | 56 | Layoff, permanent | 59 under 60 |
| Dec 15, 2023 | Feb 12, 2024 | San Mateo | 52 | Layoff, permanent | 59 under 60 | |
| Feb 9, 2023 | Apr 19, 2023 | San Diego | San Diego | 196 | Layoff, permanent | 69 |
| Nov 9, 2018 | Feb 18, 2019 | San Mateo | South San | 100 | Closure, type not stated | 101 |
| Feb 14, 2017 | Apr 28, 2017 | Santa Clara | Palo Alto | 38 | Closure, type not stated | 73 |
| Dec 7, 2016 | Feb 15, 2017 | San Francisco | San Francisco | 200 | Layoff, type not stated | 70 |
| Feb 4, 2015 | May 5, 2015 | Orange | Foothill Ranch | 70 | Closure, type not stated | 90 |
Sites named on the notices
- 10555 Science Center Dr. San Diego CA 92121 (Apr 4, 2025, 56 workers)
- 181 Oyster Point Blvd. South San Francisco Research Facility South (Dec 15, 2023, 52 workers)
- 10777 Science Center Drive San Diego CA 92121 (Feb 9, 2023, 196 workers)
Also filed as: Pfizer Inc; Pfizer Inc.
Where the notices landed
- San Diego County2 notices, 252 workers
- San Francisco County1 notice, 200 workers
- San Mateo County2 notices, 152 workers
- Orange County1 notice, 70 workers
- Santa Clara County1 notice, 38 workers
- San Diego2 notices, 252 workers
- San Francisco1 notice, 200 workers
- South San1 notice, 100 workers
- Foothill Ranch1 notice, 70 workers
- Palo Alto1 notice, 38 workers
Local pages: San Diego employment lawyer, San Francisco employment lawyer, San Diego County employment law guide, San Francisco 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 Pfizer the shortest gap shown is 59 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 Pfizer
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 2014-2015 to 2024-2025. 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.