US WARN layoff notices › Employers › O › Onsemi
Official state WARN filings by Onsemi since 1988, normalized from state labor department sources. Latest notice: 2025-03-12.
| Notice date | State | Location | Employees | Effective date | Type |
|---|---|---|---|---|---|
| 2025-03-12 | California | Santa Clara County | 51 | 2025-05-11 | Layoff Permanent |
| 2024-06-13 | Idaho | Pocatello | 90 | 2024-09-27 | — |
| 2024-06-13 | Maine | South Portland, Running Hill rd; South Portland, Maine 04106 | 53 | — | WARN |
| 2022-09-20 | California | Santa Clara County | 88 | 2022-11-17 | Closure Permanent |
Source: state WARN Act disclosures, normalized in the free US WARN notices dataset (CSV/JSON, no login, no delay, notices 1988+). WARN notices are advance notifications of plant closings and mass layoffs; actual layoff counts and dates can change after filing.
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