Quick Takeaways
- BAKER BROS. ADVISORS LP filed SCHEDULE 13G/A for Cerus Corporation Common Stock, par value $0.001 per share (CERS).
- Disclosed ownership: 5.2%.
- Date of event: 30 Sep 2025.
BAKER BROS. ADVISORS LP - 30 Sep 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
- Symbol
- CERS
- Shares outstanding
- 192,850,173 shares
- Disclosed Ownership
- 10,028,209 shares
- Ownership
- 5.2%
- Form type
- SCHEDULE 13G/A
- Filing time
- 14 Nov 2025, 16:24:23 UTC
- Date of event
- 30 Sep 2025
- Previous filing
- 14 Aug 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"BAKER BROS. ADVISORS LP disclosed 5.2% ownership in Cerus Corporation Common Stock, par value $0.001 per share (CERS) on 30 Sep 2025."
What Changed
- Previous schedule filing date: 14 Aug 2025.
- Current filing was accepted on 14 Nov 2025, 16:24.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (4)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Baker Bros. Advisors LP | 5.2% | 10,008,345 | 10,008,345 | 0 | /s/ Scott L. Lessing | Scott L. Lessing/ President By: Baker Bros. Advisors (GP) LLC, its general partner | |
| Baker Bros. Advisors (GP) LLC | 5.2% | 10,008,345 | 10,008,345 | 0 | /s/ Scott L. Lessing | Scott L. Lessing/ President | |
| Julian C. Baker | 5.2% | 10,028,209 | 10,028,209 | 0 | /s/ Julian C. Baker | Julian C. Baker | |
| Felix J. Baker | 5.2% | 10,028,209 | 10,028,209 | 0 | /s/ Felix J. Baker | Felix J. Baker |