US WARN intelligence
Prothena Biosciences layoffs & WARN notices
Prothena Biosciences appears in 1 non-cancelled imported WARN records across 1 states. These records report 91 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 Prothena Biosciences. Worker counts are unavailable for this period. 0 worker counts are unavailable. The newest official notice date is Jun 2, 2025.
1 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 | 1 | 91 | 0 |
Reported employer names
- Prothena Biosciences Inc
Notice history by year
Filings and attributed reports
| Company / location | Workers | Effective date | Notice date | Type / source |
|---|---|---|---|---|
| Prothena BiosciencesSan Mateo, CA | 91 | Aug 1, 2025 | Jun 2, 2025 | layoffSource ↗ |