San Mateo County, California
91 workers · Layoff · filed Jun 2, 2025
A WARN notice is filed with the state before a plant closing or a mass layoff, under the federal WARN Act or a state law like it. Workers is the number the employer said would be affected; plans can change after filing. Data sources
- Company
- Prothena Biosciences Inc
- Workers
- 91 workers
- Kind
- Layoff
- Notice date
- Jun 2, 2025
- Effective date
- Aug 1, 2025
- Location
- San Mateo County
- State
- California
- Notice
- ca-297be4f31b2ff9a1
As published
- notice_date
- 06/02/2025
- effective_date
- 08/01/2025
- received_date
- 06/10/2025
- company
- Prothena Biosciences Inc
- num_employees
- 91
- layoff_or_closure
- Layoff Permanent
- county
- San Mateo County
From the California Employment Development Department's WARN list, row 3,362, read Oct 3, 2026; first seen here Oct 3, 2026. Read with Big Local News's warn-scraper and warn-transformer.