US WARN intelligence
Atara Biotherapeutics layoffs & WARN notices
Atara Biotherapeutics appears in 9 non-cancelled imported WARN records across 1 states. These records report 365 affected workers; 0 have future effective dates. Totals include imported records only. Secondary records are attributed separately.
What the official notice history shows
During the last 365 days, this imported archive contains 0 eligible official filings for Atara Biotherapeutics. Worker counts are unavailable for this period. 0 worker counts are unavailable. The newest official notice date is Mar 18, 2025.
9 non-cancelled direct government records and 0 attributed secondary records appear in the full archive. These figures describe notices, not unique people or completed layoffs. Grouped company names do not establish ownership.
Compare original weekly and monthly official-data reports → · How dates, names and counts are interpreted
State breakdown
| State | Notices | Reported workers | Upcoming events |
|---|---|---|---|
| California | 9 | 365 | 0 |
Reported employer names
- Atara Biotherapeutics (canonical company name)
- Atara Biotherapeutics, Inc.
Notice history by year
Filings and attributed reports
| Company / location | Workers | Effective date | Notice date | Type / source |
|---|---|---|---|---|
| Atara BiotherapeuticsVentura, CA | 31 | May 2, 2025 | Mar 18, 2025 | layoffSource ↗ |
| Atara BiotherapeuticsVentura, CA | 1 | Mar 8, 2024 | Jan 8, 2024 | layoffSource ↗ |
| Atara BiotherapeuticsVentura, CA | 43 | Mar 8, 2024 | Jan 8, 2024 | layoffSource ↗ |
| Atara BiotherapeuticsVentura, CA | 72 | Dec 31, 2023 | Nov 1, 2023 | layoffSource ↗ |
| Atara BiotherapeuticsVentura, CA | 1 | Dec 31, 2023 | Nov 1, 2023 | layoffSource ↗ |
| Atara BiotherapeuticsSuite 200 Thousand Oaks, CA | 55 | Oct 7, 2022 | Aug 8, 2022 | layoffSource ↗ |
| Atara BiotherapeuticsSan Mateo, CA | 14 | Oct 7, 2022 | Aug 8, 2022 | layoffSource ↗ |
| Atara BiotherapeuticsVentura, CA | 8 | Oct 7, 2022 | Aug 8, 2022 | layoffSource ↗ |
| Atara BiotherapeuticsVentura, CA | 140 | Jan 26, 2022 | Jan 26, 2022 | layoffSource ↗ |