Amgen Layoffs & WARN Notices — 5,085 Workers Affected
All WARN Act mass layoff and plant closure notices filed by Amgen.
Data updated
21
Total Notices
4,676
Workers Affected
3
States
2009
First Filing
2023
Latest Filing
Data Insights
Industry Breakdown
Workers affected by industry sector
Layoff Types
Workers affected by notice type
Amgen WARN Act Filings
| Company | Location | Employees | Notice Date | Type |
|---|---|---|---|---|
| Amgen | San Carlos, CA | 4 | Closure | |
| Amgen | Newbury Park, CA | 425 | Layoff | |
| Amgen | Thousand Oaks, CA | 305 | Layoff | |
| Amgen | Newark, CA | 2 | Closure | |
| Amgen | San Carlos, CA | 2 | Closure | |
| Amgen | Newbury Park, CA | 61 | Layoff | |
| Amgen | Thousand Oaks, CA | 531 | Layoff | |
| Amgen | Newbury Park, CA | 531 | Layoff | |
| Bright Horizons-Camp Amgen | Newbury Park, CA | 104 | Layoff | |
| Amgen | Cambridge, MA | 426 | ||
| Amgen | Thousand Oaks, CA | 172 | Layoff | |
| Amgen | Thousand Oaks, CA | 121 | Layoff | |
| Amgen | Thousand Oaks, CA | 494 | Layoff | |
| Amgen | Newbury Park, CA | 349 | Layoff | |
| Amgen | Seattle, WA | 274 | Closure | |
| Amgen | Thousand Oaks, CA | 59 | Layoff | |
| Amgen (Thousand Oaks) | Thousand Oaks, CA | 252 | ||
| Amgen | Thousand Oaks, CA | 68 | ||
| Amgen(Thousand Oaks) | Thousand Oaks, CA | 157 | ||
| Amgen | Thousand Oaks, CA | 226 |
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Amgen Layoff FAQ
Is Amgen laying off in 2026?
Amgen has no 2026 WARN notices on record. The most recent WARN Act filing was in 2023.
How many layoffs has Amgen had?
Amgen has filed 23 WARN Act notices affecting a total of 5,085 workers across 3 states.
When was Amgen's most recent layoff?
Amgen's most recent WARN Act filing was on 2023-07-17.
What states has Amgen laid off workers in?
Amgen has filed WARN Act notices in: California, Massachusetts, Washington.
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 Amgen 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 Amgen: SEC 8-K event filings and H-1B labor condition applications often move before and after WARN notices.
8-K — 8-K
Filed 2026-05-20
8-K — 8-K
Filed 2026-05-19
8-K — 8-K
Filed 2026-04-30
8-K — 8-K
Filed 2026-04-22
8-K — 8-K
Filed 2026-02-19
1,917 H-1B LCA petitions filed (FY2010–FY2026) — check H-1B layoff risk →
Related Industries
Browse layoff data for industries where Amgen operates:
States with Filings
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