Layoffs at Gilead Sciences
- Layoff events
- 11
- verified and sourced
- Roles reported
- 763
- roles in total
- Announced between
- Nov 2023 to Apr 2026
- Reported by
- Maryland Department of Labor, California Employment Development Department, Fierce Biotech, WARNTracker / U.S. Department of Labor WARN data, and BioSpace
This page records what we could verify and source. It is not a complete record of every job cut at Gilead Sciences: a layoff nobody published and nobody sent us is a layoff that is not on this page.
| Company | What happened | Roles reported | Share of staff | Where | Announced | Sources |
|---|---|---|---|---|---|---|
| Gilead Sciences |
Merger or acquisition
Gilead filed WARN notices for 192 roles across Arcellx sites in Redwood City and Rockville shortly after completing its acquisition of the cell-therapy company. |
192 | Not known | Arcellx: 800 Bridge Parkway, Redwood City + 800 King Farm Blvd, Rockville, United States | ||
| Gilead Sciences |
Restructuring
Gilead filed a California WARN notice for 51 permanent layoffs in San Mateo, effective May 29. |
51 | Not known | San Mateo, United States |
2 sources for Gilead Sciences |
|
| Gilead Sciences |
Restructuring
Gilead filed a California WARN notice for 34 permanent layoffs in Oceanside, effective March 27. |
34 | Not known | 4010 Ocean Ranch Boulevard, Oceanside, United States |
2 sources for Gilead Sciences |
|
| Gilead Sciences |
Restructuring
Gilead filed another California WARN notice for 17 layoffs at its Oceanside operation, effective January 16, 2026. |
17 | Not known | 4010 Ocean Ranch Boulevard, Oceanside, United States |
2 sources for Gilead Sciences |
|
| Gilead Sciences |
Restructuring
Gilead filed a California WARN notice for five layoffs at its Oceanside operation, effective October 10. |
5 | Not known | 4010 Ocean Ranch Boulevard, Oceanside, United States |
2 sources for Gilead Sciences |
|
| Gilead Sciences |
Restructuring
Gilead filed a California WARN notice for 36 Oceanside layoffs after abandoning an expansion plan and co-locating biologics teams elsewhere in California. |
36 | Not known | 4010 Ocean Ranch Boulevard, Oceanside, United States |
2 sources for Gilead Sciences |
|
| Gilead Sciences |
Restructuring
Gilead filed a California WARN notice for 149 permanent layoffs at its Foster City headquarters, effective May 27. |
149 | Not known | 333 Lakeside Drive, Foster City, United States |
2 sources for Gilead Sciences |
|
| Gilead Sciences |
Site closure
Gilead announced the closure of its Seattle R&D support office and 72 layoffs beginning Jan. 17, 2025. |
72 | Not known | Seattle R&D support office, Seattle, United States |
1 source for Gilead Sciences |
|
| Gilead Sciences |
Restructuring
Gilead disclosed 104 layoffs at its Foster City, California headquarters, effective in March 2025, as part of broader resource-alignment changes. |
104 | Not known | California headquarters, Foster City, United States |
2 sources for Gilead Sciences |
|
| Gilead Sciences |
Restructuring
Gilead Sciences disclosed 58 layoffs at a Foster City, California site, with the cuts scheduled to be complete by June 28. |
58 | Not known | Foster City, California site, Foster City, United States |
1 source for Gilead Sciences |
|
| Gilead Sciences |
Restructuring
Gilead disclosed a Foster City workforce reduction affecting around 45 employees, with most of the layoffs effective Dec. 15. |
45 | Not known | Foster City, California office, Foster City, United States |
1 source for Gilead Sciences |
Where this comes from
Every cut listed for Gilead Sciences was entered by a person who checked it against a filing or a named report. Nothing is scraped and nothing publishes itself. What is not here is what we have not verified, not what did not happen.
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