Location: Illumina Way San Diego, CA (San Diego County).
A WARN notice was filed on November 6, 2025.
Disclosed through an official WARN filing with the CA state workforce agency.
Illumina, Inc. disclosed this layoff in an official WARN (Worker Adjustment and Retraining Notification) notice filed with the CA state workforce agency on November 6, 2025. The notice covers 28 employees in Illumina Way San Diego, CA (San Diego County), with the layoff effective January 5, 2026.
That is roughly 0.6% of the 5,000 people Illumina, Inc. employs.
LayoffTalk has tracked 12 layoff events at Illumina, Inc. since April 2023, affecting a combined 654 employees.
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Illumina, Inc. cut 28 jobs in Illumina Way San Diego, CA on January 5, 2026. Were you affected, or do you know people who were? How was it handled — severance, notice, which teams? You can post anonymously below.
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