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REPORTED · WARN NOTICEPublished Dec 10, 2025

Illumina, Inc. Layoff — November 2025

EMPLOYEES AFFECTED
8
SHARE OF WORKFORCE
~0.2%
EFFECTIVE DATE
Nov 11, 2025
8 OF 5,000 EMPLOYEES

What we know

Location: Illumina Way San Diego, CA (San Diego County).

A WARN notice was filed on November 13, 2025.

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 filed with the CA state workforce agency on November 13, 2025. The notice covers 8 employees in Illumina Way San Diego, CA (San Diego County), with the layoff effective November 11, 2025.

That is roughly 0.2% 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.

Comments (1)

Anonymous by default. Be kind — people reading this may be going through it right now.

LTLayoffTalk StaffStaff23 hours ago

Illumina, Inc. cut 8 jobs in Illumina Way San Diego, CA on November 11, 2025. If you were part of this round, what was your experience? Others going through it are reading. You can post anonymously below.

SOURCE
Official WARN notice
View state filing ↗
I
Illumina, Inc.ILMN
Health Care · 5,000 employees
12
EVENTS TRACKED
654
AFFECTED SINCE 2023
View company profile+ Get alerts for Illumina, Inc.

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CREATED DEC 10, 2025LAST UPDATED JUL 3, 2026