Baker Bros. Advisors Lp - Jun 30, 2025 SCHEDULE 13G/A Report for Cerus Corporation Common Stock, par value $0.001 per share (CERS)

Filing Manager
BAKER BROS. ADVISORS LP
Reporting Manager
Julian C. Baker
Security
Cerus Corporation Common Stock, par value $0.001 per share
Symbol
CERS
Shares outstanding
190M shares
Disclosed Ownership
12.9M shares
Ownership
6.8%
Form type
SCHEDULE 13G/A
Date filed
8/14/2025, 04:26 PM
Date of event
Jun 30, 2025
Next filing
Nov 14, 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Baker Bros. Advisors LP 6.7% 12.9M 12.9M 0 /s/ Scott L. Lessing Scott L. Lessing/ President, Baker Bros. Advisors (GP) LLC, its general partner
Baker Bros. Advisors (GP) LLC 6.7% 12.9M 12.9M 0 /s/ Scott L. Lessing Scott L. Lessing/ President
Julian C. Baker 6.8% 12.9M 12.9M 0 /s/ Julian C. Baker Julian C. Baker
Felix J. Baker 6.8% 12.9M 12.9M 0 /s/ Felix J. Baker Felix J. Baker