Key facts
- COLUMN GROUP III GP, LP filed SCHEDULE 13D/A for Surrozen, Inc. Common Stock, $0.0001 par value per share (SRZN).
- Disclosed ownership: 29%.
- Date of event: 31 Mar 2026.
COLUMN GROUP III GP, LP - 31 Mar 2026 SCHEDULE 13D/A Report for Surrozen, Inc. Common Stock, $0.0001 par value per share (SRZN)
- Filing Manager
- COLUMN GROUP III GP, LP
- Reporting Manager
- Tim Kutzkey
- Symbol
- SRZN
- Shares outstanding
- 13,053,283 shares
- Disclosed Ownership
- 3,824,612 shares
- Ownership
- 29%
- Form type
- SCHEDULE 13D/A
- Filing time
- 18 May 2026, 06:49:32 UTC
- Date of event
- 31 Mar 2026
- Previous filing
- 22 Jan 2026
- SEC
- View on sec.gov
Key filing fact
COLUMN GROUP III GP, LP disclosed 29% ownership in Surrozen, Inc. Common Stock, $0.0001 par value per share (SRZN) on 31 Mar 2026.
Change
- Previous schedule filing date: 22 Jan 2026.
- Current filing was accepted on 18 May 2026, 06:49.
Research use
- 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.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Reporting managers (8)
Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| The Column Group III GP, LP | 24% | 2,962,544 | 0 | 2,962,544 | /s/ James Evangelista | James Evangelista, Attorney-in-Fact | 0001790965 |
| The Column Group III, LP | 12% | 1,391,340 | 0 | 1,391,340 | /s/ James Evangelista | James Evangelista, Attorney-in-Fact | 0001668159 |
| The Column Group III-A, LP | 13% | 1,571,204 | 0 | 1,571,204 | /s/ James Evangelista | James Evangelista, Attorney-in-Fact | 0001668085 |
| The Column Group Opportunity III, LP | 7.2% | 862,068 | 0 | 862,068 | /s/ James Evangelista | James Evangelista, Attorney-in-Fact | 0001931825 |
| The Column Group Opportunity III GP, LP | 7.2% | 862,068 | 0 | 862,068 | /s/ James Evangelista | James Evangelista, Attorney-in-Fact | 0001932874 |
| TCG Opportunity III GP, LLC | 7.2% | 862,068 | 0 | 862,068 | /s/ James Evangelista | James Evangelista, Attorney-in-Fact | 0001932445 |
| Tim Kutzkey | 29% | 3,824,612 | 0 | 3,824,612 | /s/ James Evangelista | James Evangelista, Attorney-in-Fact | 0001614186 |
| Peter Svennilson | 29% | 3,824,612 | 0 | 3,824,612 | /s/ James Evangelista | James Evangelista, Attorney-in-Fact | 0001606074 |
CIK / CUSIP context first