COMPANY DOSSIER

Is Illumina laying off workers?

Yes. Illumina filed 5 WARN notices in the last 12 months covering 46 jobs. The most recent was filed Dec 22, 2025 for San Diego, California, effective Dec 22, 2025. Across every year on record since 2018: 26 notices covering 797 jobs.

797 roles affected across 26 filings.

Canary status: SingingEVIDENCE-BASED · NOT A PREDICTION
heavy executive turnover (3 SEC leadership-change filings) · M&A activity (SEC 8-K Item 2.01)
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 26 WARN notices between 2018 and 2025, cutting 797 jobs in total. Down 52% year-on-year: 46 jobs cut in the last 12 months vs 96 the year before.

61
19
231
181
163
142
2018
2019
2020
2021
2022
2023
2024
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 →

Every filing

San Diego, California
Filed Dec 22, 2025 (10mo ago) · Effective Dec 22, 2025 · official filing →
1
Layoff
REMOTE · SLIVER
San Diego, California
Filed Dec 11, 2025 (10mo ago) · Effective Dec 8, 2025 · official filing →
7
Layoff
San Diego, California
Filed Dec 4, 2025 (10mo ago) · Effective Feb 17, 2026 · official filing →
3
Layoff
REMOTE · SLIVER
San Diego, California
Filed Nov 20, 2025 (11mo ago) · Effective Jan 19, 2026 · official filing →
7
Layoff
San Diego, California
Filed Nov 6, 2025 (11mo ago) · Effective Jan 5, 2026 · official filing →
28
Layoff
San Diego, California
Filed Feb 12, 2025 (1y ago) · Effective Apr 14, 2025 · official filing →
96
Layoff
San Diego, California
Filed Sep 4, 2024 (2y ago) · Effective Nov 6, 2024 · official filing →
3
Layoff
REMOTE · SLIVER
San Diego, California
Filed Jul 31, 2024 (2y ago) · Effective Oct 1, 2024 · official filing →
49
Layoff
San Diego, California
Filed Jan 11, 2024 (2y ago) · Effective Mar 12, 2024 · official filing →
111
Layoff
San Mateo, California
Filed Aug 7, 2023 (3y ago) · Effective Sep 6, 2023 · official filing →
1
Layoff
REMOTE · SLIVER
Hayward, California
Filed Jul 13, 2023 (3y ago) · Effective Aug 14, 2023 · official filing →
3
Layoff
REMOTE · SLIVER
San Mateo, California
Filed Jul 13, 2023 (3y ago) · Effective Aug 14, 2023 · official filing →
14
Layoff
San Diego, California
Filed Jul 13, 2023 (3y ago) · Effective Aug 14, 2023 · official filing →
76
Layoff
Hayward, California
Filed Jun 21, 2023 (3y ago) · Effective Jul 21, 2023 · official filing →
1
Layoff
REMOTE · SLIVER
Foster City, California
Filed Jun 21, 2023 (3y ago) · Effective Jul 21, 2023 · official filing →
71
Layoff
San Diego, California
Filed Jun 21, 2023 (3y ago) · Effective Jul 21, 2023 · official filing →
14
Layoff
San Diego, California
Filed Jan 23, 2023 (3y ago) · Effective Mar 24, 2023 · official filing →
1
Layoff
REMOTE · SLIVER
Hayward, California
Filed Nov 14, 2022 (4y ago) · Effective Jan 13, 2023 · official filing →
4
Layoff
REMOTE · SLIVER
San Mateo, California
Filed Nov 14, 2022 (4y ago) · Effective Jan 13, 2023 · official filing →
20
Layoff
San Diego, California
Filed Nov 14, 2022 (4y ago) · Effective Jan 13, 2023 · official filing →
206
Layoff
San Diego, California
Filed Nov 14, 2022 (4y ago) · Effective Jan 13, 2023 · official filing →
1
Layoff
REMOTE · SLIVER
Foster City, California
Filed Aug 30, 2019 (7y ago) · Effective Nov 5, 2019 · official filing →
19
Layoff
Hayward, California
Filed Feb 12, 2018 (8y ago) · Effective Apr 13, 2018 · official filing →
1
Layoff
REMOTE · SLIVER
San Diego, California
Filed Feb 12, 2018 (8y ago) · Effective Apr 13, 2018 · official filing →
55
Layoff
San Francisco, California
Filed Feb 12, 2018 (8y ago) · Effective Apr 13, 2018 · official filing →
3
Layoff
REMOTE · SLIVER
Santa Clara, California
Filed Feb 12, 2018 (8y ago) · Effective Apr 13, 2018 · official filing →
2
Layoff
REMOTE · SLIVER

Questions

Is Illumina laying off employees?

Yes. Illumina filed 5 WARN notices in the last 12 months covering 46 jobs. The most recent was filed Dec 22, 2025 for San Diego, California, effective Dec 22, 2025. Across every year on record since 2018: 26 notices covering 797 jobs.

How many jobs is Illumina cutting?

46 jobs in WARN notices filed in the last 12 months. 797 jobs across all 26 official WARN filings on record since 2018.

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.

Is Illumina on a list you care about?

Paste your suppliers, customers or holdings at /monitor and see which of them have filed a layoff that has not happened yet. A WARN notice is filed about 60 days before the jobs go, so those are still ahead of you. Free to check, no account, and we do not store your list.

Watching Illumina?

We'll email you if there are further filings, expansions, or new locations affected.

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