0001020214 2026-07-06 2026-07-06 false 0001020214 8-K 2026-07-06 Cerus Corporation DE 000-21937 68-0262011 1220 Concord Ave., Suite 600 Concord CA 94520 925 288-6000 Not Applicable false false false false Common Stock, par value $0.001 per share CERS NASDAQ false