0000891618-99-001365 424B4 1 19990401 CERUS CORP 0001020214 2836 680262011 DE 1228 424B4 33 333-72185 99585778 2525 STANWELL DRIVE SUITE 300 CONCORD CA 94520 5106039071 2525 STANWELL DRIVE STE 300 CONCORD CA 94520 CERUS TECHNOLOGIES INC 19960731 424B4 1 000089161899001365-001-seq1-424b4.txt PROSPECTUS FILED PRUSUANT TO RULE 424(B)(4)