Yes. Illumina filed 5 WARN notices to cut 46 jobs in San Diego, California, with the layoffs effective Dec 22, 2025. The most recent was filed Dec 22, 2025 under the federal WARN Act.
46 roles affected across 5 filings.
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Canary status: SingingEVIDENCE-BASED · NOT A PREDICTION
CanaryWhistle's own assessment, computed from the public filings listed on this page. It is a read of hiring and workforce activity, not a statement about Illumina's solvency or creditworthiness. Not a credit rating and not financial advice. See our sources and method.
Filing history
Illumina has filed 5 WARN notices in 2025, cutting 46 jobs in total. Activity picked back up in the last 12 months (46 jobs) after a quiet prior year.
46
2025
Corporate signalsSEC · PBGC · PRIMARY SOURCES
Material corporate events on record for Illumina, beyond the WARN notice, that fill in the wider story of a company under pressure. Each links to its official source. No other layoff tracker connects these.
Jun 23, 2026Executive ChangeSEC Form 8-K, Item 5.02, filed 2026-06-23 by ILLUMINA, INC. (ILMN).SEC filing →
Apr 2, 2026Executive ChangeSEC Form 8-K, Item 5.02, filed 2026-04-02 by ILLUMINA, INC. (ILMN).SEC filing →
Jan 30, 2026AcquisitionSEC Form 8-K, Item 2.01, filed 2026-01-30 by ILLUMINA, INC. (ILMN).SEC filing →
Jan 8, 2026Executive ChangeSEC Form 8-K, Item 5.02, filed 2026-01-08 by ILLUMINA, INC. (ILMN).SEC filing →
May 23, 2025Executive ChangeSEC Form 8-K, Item 5.02, filed 2025-05-23 by ILLUMINA, INC. (ILMN).SEC filing →
Mar 25, 2025Executive ChangeSEC Form 8-K, Item 5.02, filed 2025-03-25 by ILLUMINA, INC. (ILMN).SEC filing →
Mar 24, 2025Executive ChangeSEC Form 8-K, Item 5.02, filed 2025-03-24 by ILLUMINA, INC. (ILMN).SEC filing →
Oct 3, 2024Executive ChangeSEC Form 8-K, Item 5.02, filed 2024-10-03 by ILLUMINA, INC. (ILMN).SEC filing →
Filed Nov 6, 2025 (8mo ago) · Effective Jan 5, 2026 · official filing →
28
Layoff
Questions
Is Illumina laying off employees?
Yes. Illumina filed 5 WARN notices to cut 46 jobs in San Diego, California, with the layoffs effective Dec 22, 2025. The most recent was filed Dec 22, 2025 under the federal WARN Act.
How many jobs is Illumina cutting?
46 jobs, across 5 official WARN filings.
When do the Illumina layoffs take effect?
The most recent filing lists an effective date of Dec 22, 2025. The WARN Act requires roughly 60 days' advance notice, so the filing date precedes the job losses.
Watching Illumina?
We'll email you if there are further filings, expansions, or new locations affected.