329 Oyster Point Blvd South San Francisco CA 94080, California
58 workers · Layoff · filed Aug 31, 2026
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
- Arsenal Biosciences, Inc.
- Workers
- 58 workers
- Kind
- Layoff
- Notice date
- Aug 31, 2026
- Effective date
- Oct 29, 2026
- Location
- 329 Oyster Point Blvd South San Francisco CA 94080
- State
- California
- Notice
- ca-5b31650eba5d1315
As published
- notice_date
- 08/31/2026
- effective_date
- 10/29/2026
- received_date
- 09/01/2026
- company
- Arsenal Biosciences, Inc.
- num_employees
- 58
- layoff_or_closure
- Layoff Permanent
- county
- San Mateo County
- address
- 329 Oyster Point Blvd South San Francisco CA 94080
From the California Employment Development Department's WARN list, row 187, read Oct 3, 2026; first seen here Oct 3, 2026. Read with Big Local News's warn-scraper and warn-transformer.