COMPANY DOSSIER

Is Onsemi laying off workers?

Not according to official filings. There is no WARN layoff notice from Onsemi in the last 12 months. The most recent was filed Mar 12, 2025 for 51 jobs in San Jose, California. WARN covers larger layoffs only, so smaller cuts may not appear.

282 roles affected across 4 filings in 3 states.

Canary status: SingingEVIDENCE-BASED · NOT A PREDICTION
No WARN filing or SEC event in the recent window — quiet on the wire right now.
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 Onsemi's solvency or creditworthiness. Not a credit rating and not financial advice. See our sources and method.
◆ NATIONAL FOOTPRINT · 3 states. Each state files its own WARN notice, so small per-state counts are slices of one distributed layoff. Ranked by jobs cut:
California139Idaho90Maine53

Filing history

Onsemi has filed 4 WARN notices between 2022 and 2025, cutting 282 jobs in total. No new filings in the last 12 months. The most recent was Mar 12, 2025.

88
143
51
2022
2023
2024
2025

Every filing

San Jose, California
Filed Mar 12, 2025 (1y ago) · Effective May 11, 2025 · official filing →
51
Layoff
Pocatello, Idaho
Filed Jun 13, 2024 (2y ago) · Effective Sep 27, 2024 · official filing →
90
Layoff
South Portland, Maine
Filed Jun 13, 2024 (2y ago) · Effective · · official filing →
53
Layoff
San Jose, California
Filed Sep 19, 2022 (4y ago) · Effective Nov 17, 2022 · official filing →
88
Closure

Questions

Is Onsemi laying off employees?

Not according to official filings. There is no WARN layoff notice from Onsemi in the last 12 months. The most recent was filed Mar 12, 2025 for 51 jobs in San Jose, California. WARN covers larger layoffs only, so smaller cuts may not appear.

How many jobs is Onsemi cutting?

282 jobs across all 4 official WARN filings on record since 2022, in 3 states.

When do the Onsemi layoffs take effect?

The most recent filing lists an effective date of May 11, 2025. The WARN Act requires roughly 60 days' advance notice, so the filing date precedes the job losses.

Watching Onsemi?

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

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