AMGEN INC
Public company- Headquarters
- THOUSAND OAKS, California
- Industry
- Biotechnology
- Ticker
- AMGN
- CIK
- 0000318154
WARN notices since 2024
Workers affected since 2024
Executive changes, last 12 months
Last event
Workers affected over time
Cumulative workers in WARN notices since 2024
Not enough notices to chart yet.
Leadership
| Role and person | Since | Change |
|---|---|---|
| directorDavid W. Gibbs | Oct 27, 2026 | Appointed |
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Plant closure: Berkeley, CA
layoffs from Sep 1, 2023
Plant closurePlant closure: CA
Amgen filed a WARN notice with the California WARN list on Jun 13, 2023 covering 4 workers. The site closes on Sep 1, 2023.
Source: California WARN list, filed Jun 13, 2023Site: CA
Workers affected: 4
layoffs from May 26, 2023
WARN noticeWARN notice: CA
Amgen Inc. filed a WARN notice with the California WARN list on Mar 16, 2023 covering 425 workers. The layoffs take effect on May 26, 2023.
Source: California WARN list, filed Mar 16, 2023Site: CA
Workers affected: 425
layoffs from Mar 31, 2023
WARN noticeWARN notice: CA
Amgen filed a WARN notice with the California WARN list on Jan 24, 2023 covering 305 workers. The layoffs take effect on Mar 31, 2023.
Source: California WARN list, filed Jan 24, 2023Site: CA
Workers affected: 305
layoffs from Dec 2, 2022
Plant closurePlant closure: CA
Amgen filed a WARN notice with the California WARN list on Jun 15, 2022 covering 2 workers. The site closes on Dec 2, 2022.
Source: California WARN list, filed Jun 15, 2022Site: CA
Workers affected: 2
layoffs from Jul 9, 2021
WARN noticeWARN notice: Newbury Park, CA
Amgen Inc. filed a WARN notice with the California WARN list on May 5, 2021 covering 61 workers in Newbury Park. The layoffs take effect on Jul 9, 2021.
Source: California WARN list, filed May 5, 2021Site: Newbury Park, CA
Workers affected: 61
layoffs from Apr 2, 2021
WARN noticeWARN notice: Thousand Oaks, CA
Amgen filed a WARN notice with the California WARN list on Jan 28, 2021 covering 531 workers in Thousand Oaks. The layoffs take effect on Apr 2, 2021.
Source: California WARN list, filed Jan 28, 2021Site: Thousand Oaks, CA
Workers affected: 531
layoffs from Apr 2, 2021
WARN noticeWARN notice: Newbury Park, CA
Amgen Inc filed a WARN notice with the California WARN list on Jan 28, 2021 covering 531 workers in Newbury Park. The layoffs take effect on Apr 2, 2021.
Source: California WARN list, filed Jan 28, 2021Site: Newbury Park, CA
Workers affected: 531
layoffs from Dec 31, 2019
WARN noticeWARN notice: Thousand Oaks, CA
Amgen Inc. filed a WARN notice with the California WARN list on Oct 29, 2019 covering 172 workers in Thousand Oaks. The layoffs take effect on Dec 31, 2019.
Source: California WARN list, filed Oct 29, 2019Site: Thousand Oaks, CA
Workers affected: 172
Last verified Nov 8, 2026