Illumina Layoffs & WARN Notices — 1,796 Workers Affected

Name: Illumina WARN Act Layoff Notices
Creator: LaborCurrent
License: https://creativecommons.org/publicdomain/zero/1.0/

All WARN Act mass layoff and plant closure notices filed by Illumina.

Data updated 2026-01-23

Total Notices

1,329

Workers Affected

States

2011

First Filing

2026

Latest Filing

Data Insights

Industry Breakdown

Workers affected by industry sector

Illumina WARN Act Filings

WARN Act layoff notices
Company	Location	Employees	Notice Date	Type	Source
Illumina, Inc. Worldwide Headquarters	San Diego, CA	4	2026-01-23	Layoff	Agency WARN listing
Illumina, Inc Worldwide Headquarters	San Diego, CA	1	2026-01-23	Layoff	Agency WARN listing
Illumina	San Diego, CA	1	2025-12-22		Agency WARN listing
Illumina	San Diego, CA	7	2025-12-11		Agency WARN listing
Illumina	San Diego, CA	3	2025-12-04		Agency WARN listing
Illumina	San Diego, CA	7	2025-11-20		Agency WARN listing
Illumina, Inc. Worldwide Headquarters	San Diego, CA	8	2025-11-13		Agency WARN listing
Illumina	San Diego, CA	28	2025-11-07	Layoff	Agency WARN listing
Illumina, Inc. Worldwide Headquarters	San Diego, CA	4	2025-11-06	Layoff	Agency WARN listing
Illumina, Inc. Worldwide Headquarters	San Diego, CA	172	2025-04-17	Layoff	Source document
Illumina	San Diego, CA	96	2025-02-13	Layoff	Agency WARN listing
Illumina	San Diego, CA	96	2025-02-12	Layoff	Source document
Illumina	San Diego, CA	3	2024-09-05	Layoff	Agency WARN listing
Illumina	San Diego, CA	3	2024-09-04	Layoff	Source document
Illumina	San Diego, CA	49	2024-08-01	Layoff	Agency WARN listing
Illumina	San Diego, CA	49	2024-07-31	Layoff	Source document
Illumina	San Diego, CA	111	2024-01-29	Layoff	Agency WARN listing
Illumina	San Diego, CA	111	2024-01-11	Layoff	Source document
Illumina	Centre Drive San Mateo, CA	1	2023-09-06	Layoff	Agency WARN listing
Illumina	San Diego, CA	76	2023-08-14	Layoff	Agency WARN listing

Illumina Layoff FAQ

Is Illumina laying off in 2026?

Yes. Illumina has filed 2 WARN Act notices in 2026 affecting 5 workers. See the filings table above for locations and dates.

How many layoffs has Illumina had?

Illumina has filed 47 WARN Act notices affecting a total of 1,796 workers across 1 state.

When was Illumina's most recent layoff?

Illumina's most recent WARN Act filing was on 2026-01-23.

What states has Illumina laid off workers in?

Illumina 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 Illumina 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 laborcurrent.com/pricing.

Latest Layoff Reports

November 2026 report October 2026 report September 2026 report

SEC Filings & Hiring Signals

Cross-dataset signals for Illumina: SEC 8-K event filings and H-1B labor condition applications shown alongside the WARN notices above. They are linked to this employer by matching its name (or an SEC ticker or CIK we assign to it) — the link is an algorithmic estimate, not verified by the SEC, the Department of Labor or any state agency, and the filings are not restricted to the same period as the notices. Matching rules: methodology.

Filed 2026-10-29

Filed 2026-10-13

Filed 2026-08-17

Filed 2026-08-13

Filed 2026-08-12

1,033 H-1B LCA petitions filed (FY2010–FY2026) — check H-1B layoff risk →