Illumina, Inc. Layoff — December 2025
SOURCEOFFICIAL FILINGCalifornia Employment Development Department· filed December 11, 2025View the filing ↗
What we know
Location: Illumina Way San Diego, CA (San Diego County).
A WARN notice for this layoff is recorded on December 11, 2025, after the layoff itself — how a late or amended filing reaches the state.
Disclosed through an official WARN filing with the CA state workforce agency.
Summary
Illumina, Inc. disclosed this layoff in an official WARN (Worker Adjustment and Retraining Notification) notice recorded by the CA state workforce agency on December 11, 2025. That record post-dates the layoff itself, which is how a late or amended filing reaches the state. The notice covers 7 employees in Illumina Way San Diego, CA (San Diego County), with the layoff effective December 8, 2025.
That is roughly 0.1% of the 5,000 people Illumina, Inc. employs.
LayoffTalk has tracked 20 layoff events at Illumina, Inc. since January 2023, including 1,041 jobs documented in official WARN filings, with 3 additional events known from news reporting.
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