WARN — Worker Adjustment and Retraining Notification Act Federal law requiring 60-day advance notice of large layoffs or plant closures100+ employee firms, 50+/one-third site thresholds — WARN data captures only a FRACTION of layoffs; distributed cuts are invisibleOfficial source ↗ Act layoff notice filed by ALEXION PHARMACEUTICALS, INC in CA on Jan 20, 2022. Public state workforce agency record." />
WARN — Worker Adjustment and Retraining Notification Act Federal law requiring 60-day advance notice of large layoffs or plant closures100+ employee firms, 50+/one-third site thresholds — WARN data captures only a FRACTION of layoffs; distributed cuts are invisibleOfficial source ↗ Act · Historical archive

ALEXION PHARMACEUTICALS, INC

CA · 270 E. Grand Avenue South San Francisco CA 94080

Notice date
Jan 20, 2022
Layoff date
Apr 8, 2022
Workers affected
— (not reported in the notice)
Type
plant_closing
State
CA
Site
—
County
—
Source
Historical archive · agency page
Provenance
historical #1963 · recorded 2026-04-19
Coverage cell
CA 2022: COVERED (220 notices held; as of Sep 7, 2026)

Names are the ones the state published, often the legal entity rather than the brand. A notice attributed to an employer page links there; an unattributed notice stays here until the identity night matches it (#122 review queue).

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