Illumina has filed 9 WARN notices in California, affecting 63 workers total. All filings were classified as layoffs rather than closures. Filing dates range from Nov 5, 2025 through Jan 14, 2026.
| Location | State | Type | Workers | Effective | Filed |
|---|---|---|---|---|---|
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 1 | 2026-03-09 | 2026-01-14 |
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 4 | 2026-03-16 | 2026-01-14 |
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 1 | 2025-12-22 | 2025-12-22 |
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 7 | 2025-12-08 | 2025-12-11 |
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 3 | 2026-02-17 | 2025-12-04 |
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 7 | 2026-01-19 | 2025-11-20 |
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 8 | 2025-11-11 | 2025-11-13 |
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 28 | 2026-01-05 | 2025-11-06 |
| San Diego 5200 Illumina Way San Diego CA 92122 |
CA | Layoff | 4 | 2026-01-05 | 2025-11-05 |
Illumina has an upcoming layoff effective Mar 16, 2026. If you are affected, you remain employed with regular pay and benefits until the effective date. Use this time to prepare: file for unemployment insurance so your claim is ready when your last day arrives, review your COBRA health coverage options, and visit your local America's Job Center for free career counseling and retraining vouchers. Ask about Rapid Response services, which are specifically designed for WARN-affected workers.
Apply online at your state workforce agency. You may be eligible before your last day.
Losing employer-sponsored coverage qualifies you for a Special Enrollment Period on the Health Insurance Marketplace.
You may be able to temporarily continue your employer health plan for up to 18 months, though you'll pay the full premium.
Employers with 100 or more employees must give 60 days written notice before mass layoffs or plant closings.
Free career counseling, resume help, job search assistance, and retraining programs through CareerOneStop.
America's Job Centers offer free career counseling, resume help, interview prep, job search assistance, and retraining vouchers for workers affected by WARN Act layoffs. Ask about Rapid Response services.
All data on this site is sourced from official WARN Act filings published by state workforce agencies. Filings are updated regularly but may not reflect same-day submissions. Coverage varies by state.
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