SEC ownership of Surrozen, Inc./DE

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001824893.

Comparable stake leader

COLUMN GROUP III GP, LP

Disclosed value leader

COLUMN GROUP III GP, LP

Comparable rows

18/50

Latest evidence

20 Oct 2026

Top shareholders Insider holders Latest transactions
Public ticker
SRZN on Nasdaq
Parsed ownership sources
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
COLUMN GROUP III GP, LP
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
18 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
COLUMN GROUP III GP, LP
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
20 Oct 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001824893
Issuer location
South San Francisco, CA

Ownership snapshot

Top shareholders of Surrozen, Inc./DE (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
COLUMN GROUP III GP, LP
Disclosed value leader
COLUMN GROUP III GP, LP
Comparable rows
18/50
Latest evidence
20 Oct 2026
3/4/5 13D/G 13F Lead comparable stake: 21% 32 rows are not safely comparable across share classes. 13D/G row: COLUMN GROUP III GP, LP Showing 1-8 of 50 holder rows.

Quick read

COLUMN GROUP III GP, LP leads the comparable SEC ownership view at 21%.

18 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens COLUMN GROUP III GP, LP's linked filing trail.
Comparable ownership Top 5
COLUMN GROUP III GP, LP 21%
Boxer Capital Management, LLC 12%
Venrock Healthcare Capital Partne... 9.9%
TCG Crossover GP II, LLC 9.9%
AI Biotechnology LLC 9.9%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
COLUMN GROUP III GP, LP
3/4/5 13D/G
10%+ Owner · Tim Kutzkey
3/4/5 13D/G
21%
Reported 13D/G · 06 Nov 2026
$122,751,639
6,200,333 shares
mixed-class rows
 +$1,994,097 20 Oct 2026
Boxer Capital Management, LLC
13D/G
13D/G
12%
Reported 13D/G · 30 Sep 2026
$25,852,977
1,360,683 shares
 +$6,111,654 30 Sep 2026
Venrock Healthcare Capital Partners III, L.P.
13D/G
13D/G
9.9%
Reported 13D/G · 31 Mar 2026
$35,981,300
1,205,000 shares
 +$9,927,076 31 Mar 2026
TCG Crossover GP II, LLC
13D/G 3/4/5
Chen Yu · 10%+ Owner
13D/G 3/4/5
9.9%
Reported 13D/G · 22 Jul 2026
$27,405,286
1,148,101 shares
 -$7,757,782 22 Jul 2026
AI Biotechnology LLC
13D/G
13D/G
9.9%
Reported 13D/G · 24 Mar 2025
$8,462,521
844,563 shares
 $0 24 Mar 2025
RA CAPITAL MANAGEMENT, L.P.
13D/G
13D/G
9.2%
Reported 13D/G · 31 Dec 2025
$18,001,245
871,731 shares
 +$89,063 31 Dec 2025
5AM Partners VII, LLC
13D/G
13D/G
7.8%
Reported 13D/G · 30 Jun 2026
$22,097,188
968,750 shares
 -$4,419,438 30 Jun 2026
Commodore Capital LP
13D/G
13D/G
7.5%
Reported 13D/G · 24 Sep 2026
$16,815,000
885,000 shares
 $0 24 Sep 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$16,949,025.

Buys
$17,907,006
Insiders: 6
Sells
$34,856,031
Insiders: 8
Net
-$16,949,025
Shares: -867,594
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 768,234 Shares: 1,635,828
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 1,625,000 $0 $34,531,250 -$34,531,250
6-9 536,521 8,144 $13,271,433 $271,462 +$12,999,971
9-12 231,713 2,684 $4,635,573 $53,318 +$4,582,254

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 35 reporting-owner rows connected to Surrozen, Inc./DE. Open a relationship link for the CIK-to-CIK filing trail.

Rows
35
Largest Forms 3/4/5 holder
Tim Kutzkey
Net 12M change
-$16.95MFull value: -$16,949,024 · USD · 12-month change
Latest report
20 Oct 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Tim Kutzkey Director, 10%+ Owner $122,751,639 +$1,994,097 +1.7% Median 20 Oct 2026
COLUMN GROUP III GP, LP 10%+ Owner $122,751,639 +$1,994,097 +1.7% Median 20 Oct 2026
Column Group Opportunity III GP, LP 10%+ Owner $122,751,639 Median 20 Oct 2026
Column Group Opportunity III, LP 10%+ Owner $122,751,639 Median 20 Oct 2026
COLUMN GROUP III, LP 10%+ Owner $122,751,639 Median 20 Oct 2026
COLUMN GROUP III-A, LP 10%+ Owner $122,751,639 Median 20 Oct 2026
Peter Svennilson 10%+ Owner $122,751,639 Median 20 Oct 2026
TCG Opportunity III GP, LLC 10%+ Owner $122,751,639 Median 20 Oct 2026
TCG Crossover GP II, LLC 10%+ Owner $12,198,498 -$2,025,742 -14% Filing P/S 22 Jul 2026
TCG Crossover Fund II, L.P. 10%+ Owner $12,198,498 -$3,893,482 -24% Filing P/S 22 Jul 2026
TCG Crossover GP III, LLC 10%+ Owner $12,198,498 -$3,893,482 -24% Filing P/S 22 Jul 2026
TCG Crossover Fund III, L.P. 10%+ Owner $12,198,498 -$3,893,482 -24% Filing P/S 22 Jul 2026
Chen-Ming Yu 10%+ Owner $12,198,498 -$6,906,250 -36% Filing P/S 22 Jul 2026
Life Sciences Consonance Former 10% Holder $716,300 Mixed 11 Aug 2021
Kevin Harold Livingston Former Chief Financial Officer $716,300 Mixed 11 Aug 2021
Benny Soffer Former Director $716,300 Mixed 11 Aug 2021
Yang Li Exec. Vice President, Research $570,480 -$75,008 -12% Mixed 15 Jun 2026
Williams Charles O Chief Operating Officer $531,243 -$98,974 -16% Mixed 15 Jun 2026
Craig C. Parker Chief Executive Officer, Director $529,437 -$150,798 -22% Mixed 15 Jun 2026
Andrew Pedrum Maleki Chief Financial Officer $17,681 Mixed 15 Jun 2026

Recent insider transactions for Surrozen, Inc./DE

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
COLUMN GROUP III GP, LP SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 150% 517,241 862,068 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 150% 517,241 862,068 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 150% 517,241 862,068 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 150% 517,241 862,068 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 150% 517,241 862,068 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 150% 517,241 862,068 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 150% 517,241 862,068 20 Oct 2026 By The Column Group Opportunity III, LP
COLUMN GROUP III GP, LP SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 548,653 1,565,311 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 548,653 1,565,311 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 548,653 1,565,311 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 548,653 1,565,311 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 548,653 1,565,311 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 548,653 1,565,311 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 548,653 1,565,311 20 Oct 2026 By The Column Group III-A, LP
COLUMN GROUP III GP, LP SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 485,830 1,386,122 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 485,830 1,386,122 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 485,830 1,386,122 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 485,830 1,386,122 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 485,830 1,386,122 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 485,830 1,386,122 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Common Stock Exercise of in-the-money or at-the-money derivative security 54% 485,830 1,386,122 20 Oct 2026 By The Column Group III, LP
COLUMN GROUP III GP, LP SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 258,620 431,034 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 258,620 431,034 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 258,620 431,034 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 258,620 431,034 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 258,620 431,034 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 258,620 431,034 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 258,620 431,034 20 Oct 2026 By The Column Group Opportunity III, LP
COLUMN GROUP III GP, LP SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 274,327 457,211 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 274,327 457,211 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 274,327 457,211 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 274,327 457,211 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 274,327 457,211 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 274,327 457,211 20 Oct 2026 By The Column Group III-A, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 274,327 457,211 20 Oct 2026 By The Column Group III-A, LP
COLUMN GROUP III GP, LP SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 242,915 404,858 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 242,915 404,858 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 242,915 404,858 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 242,915 404,858 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 242,915 404,858 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 242,915 404,858 20 Oct 2026 By The Column Group III, LP
Column Group III Gp, Lp SRZN Series E Common Warrants Exercise of in-the-money or at-the-money derivative security 150% 242,915 404,858 20 Oct 2026 By The Column Group III, LP
COLUMN GROUP III GP, LP SRZN Second Tranche Units (Right to Buy) Exercise of in-the-money or at-the-money derivative security -100% -775,861 0 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Second Tranche Units (Right to Buy) Exercise of in-the-money or at-the-money derivative security -100% -775,861 0 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Second Tranche Units (Right to Buy) Exercise of in-the-money or at-the-money derivative security -100% -775,861 0 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Second Tranche Units (Right to Buy) Exercise of in-the-money or at-the-money derivative security -100% -775,861 0 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Second Tranche Units (Right to Buy) Exercise of in-the-money or at-the-money derivative security -100% -775,861 0 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Second Tranche Units (Right to Buy) Exercise of in-the-money or at-the-money derivative security -100% -775,861 0 20 Oct 2026 By The Column Group Opportunity III, LP
Column Group III Gp, Lp SRZN Second Tranche Units (Right to Buy) Exercise of in-the-money or at-the-money derivative security -100% -775,861 0 20 Oct 2026 By The Column Group Opportunity III, LP
COLUMN GROUP III GP, LP SRZN Second Tranche Units (Right to Buy) Exercise of in-the-money or at-the-money derivative security -100% -822,980 0 20 Oct 2026 By The Column Group III-A, LP
* marks a reported price that did not pass the local price check.
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