Onyx Pharmaceuticals Layoffs
All WARN Act mass layoff and plant closure notices filed by Onyx Pharmaceuticals.
Data updated
2
Total Notices
435
Workers Affected
1
States
2013
First Filing
2015
Latest Filing
Onyx Pharmaceuticals WARN Act Filings
| Company | Location | Employees | Notice Date | Type |
|---|---|---|---|---|
| Onyx Pharmaceuticals | South San, CA | 377 | Closure | |
| Onyx Pharmaceuticals | South San Francisco, CA | 58 |
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Onyx Pharmaceuticals Layoff FAQ
Is Onyx Pharmaceuticals laying off in 2026?
Onyx Pharmaceuticals has no 2026 WARN notices on record. The most recent WARN Act filing was in 2015.
How many layoffs has Onyx Pharmaceuticals had?
Onyx Pharmaceuticals has filed 2 WARN Act notices affecting a total of 435 workers across 1 state.
When was Onyx Pharmaceuticals's most recent layoff?
Onyx Pharmaceuticals's most recent WARN Act filing was on 2015-09-25.
What states has Onyx Pharmaceuticals laid off workers in?
Onyx Pharmaceuticals has filed WARN Act notices in: California.
What is the WARN Act?
The Worker Adjustment and Retraining Notification (WARN) Act is a federal law that requires employers with 100 or more employees to provide 60 calendar days' advance notice of plant closings and mass layoffs.
How do I get notified about Onyx Pharmaceuticals layoffs?
Subscribe using the form above to receive free daily email alerts whenever new WARN Act notices are filed. You can also set up custom filters and webhooks with a paid API plan at warnfirehose.com/pricing.
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SEC Filings & Hiring Signals
Cross-dataset signals for Onyx Pharmaceuticals: SEC 8-K event filings and H-1B labor condition applications often move before and after WARN notices.
15 H-1B LCA petitions filed (FY2011–FY2014) — check H-1B layoff risk →
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