US WARN layoff notices › Employers › A › Atara Biotherapeutics
Official state WARN filings by Atara Biotherapeutics since 1988, normalized from state labor department sources. Latest notice: 2025-03-18.
| Notice date | State | Location | Employees | Effective date | Type |
|---|---|---|---|---|---|
| 2025-03-18 | California | Ventura County | 31 | 2025-05-02 | Layoff Permanent |
| 2024-01-29 | California | Ventura County | 43 | 2024-03-08 | Layoff Permanent |
| 2024-01-29 | California | Ventura County | 1 | 2024-03-08 | Layoff Permanent |
| 2023-12-13 | California | Ventura County | 72 | 2023-12-31 | Layoff Permanent |
| 2023-12-13 | California | Ventura County | 1 | 2023-12-31 | Layoff Permanent |
| 2022-08-17 | California | Ventura County | 8 | 2022-10-07 | Layoff Permanent |
| 2022-08-17 | California | Ventura County | 55 | 2022-10-07 | Layoff Permanent |
| 2022-08-17 | California | San Mateo County | 14 | 2022-10-07 | Layoff Permanent |
| 2022-02-07 | California | Ventura County | 140 | 2022-01-26 | Layoff 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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