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

50/50

Latest evidence

22 Jul 2026

Top shareholders Insider holders Latest transactions
Public ticker
SRZN, SRZNW on Nasdaq
Parsed ownership sources
13D/G, 3/4/5, 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
50 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
22 Jul 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
50/50
Latest evidence
22 Jul 2026
13D/G 3/4/5 13F Lead comparable stake: 29% 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 29%.

50 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 29%
Venrock Healthcare Capital Partne... 9.9%
TCG Crossover GP II, LLC 9.9%
AI Biotechnology LLC 9.9%
RA CAPITAL MANAGEMENT, L.P. 9.2%

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
13D/G 3/4/5
Tim Kutzkey · 10%+ Owner
13D/G 3/4/5
29%
$120,704,755
3,824,612 shares
 $0 31 Mar 2026
Venrock Healthcare Capital Partners III, L.P.
13D/G
13D/G
9.9%
$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%
$27,405,286
1,148,101 shares
 -$7,757,782 22 Jul 2026
AI Biotechnology LLC
13D/G
13D/G
9.9%
$8,462,521
844,563 shares
 $0 24 Mar 2025
RA CAPITAL MANAGEMENT, L.P.
13D/G
13D/G
9.2%
$18,001,245
871,731 shares
 +$89,063 31 Dec 2025
Boxer Capital Management, LLC
13F 13D/G
Company
13F 13D/G
8.9%
from 13D/G
$26,964,658
1,172,349 shares
mixed-class rows
 — 30 Jun 2026
INTEGRATED CORE STRATEGIES (US) LLC
13D/G
Millennium Management LLC
13D/G
8.5%
$15,649,459
726,193 shares
 +$3,477,006 31 Dec 2025
5AM Partners VII, LLC
13D/G
13D/G
7.8%
$22,097,188
968,750 shares
 -$4,419,438 30 Jun 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: -$8,967,963.

Buys
$25,888,068
Insiders: 6
Sells
$34,856,031
Insiders: 8
Net
-$8,967,963
Shares: -236,680
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 1,399,148 Shares: 1,635,828
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 1,625,000 $0 $34,531,250 -$34,531,250
3-6 536,521 8,144 $13,271,433 $271,462 +$12,999,971
6-9 231,713 2,684 $4,635,573 $53,318 +$4,582,254
9-12 630,914 0 $7,981,062 $0 +$7,981,062

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 29 reporting-owner rows connected to Surrozen, Inc./DE. Open a relationship link for the CIK-to-CIK filing trail.

Rows
29
Largest Forms 3/4/5 holder
Tim Kutzkey
Net 12M change
-$8,967,962
Latest report
22 Jul 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Tim Kutzkey Director, 10%+ Owner $45,003,049 +$5,984,628 +15% Mixed 13 May 2026
COLUMN GROUP III GP, LP 10%+ Owner $45,003,049 +$5,984,628 +15% Mixed 15 Jan 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
Kevin Harold Livingston Former Chief Financial Officer $716,300 Mixed 11 Aug 2021
Life Sciences Consonance Former 10% Holder $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
Geertrui Vanhove Chief Medical Officer $12,317 Mixed 15 Dec 2022
Christopher Haqq Former Director $11,400 Mixed 11 Aug 2021
Donald J. Santel Former Director $11,400 Mixed 11 Aug 2021
Jennifer Jarrett Former Director $11,400 Mixed 11 Aug 2021
Yeh Wen-Chen Chief Scientific Officer $10,342 Mixed 15 Jun 2023
Mary Haak-Frendscho Director Mixed 13 May 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
TCG Crossover GP II, LLC SRZN Common Stock Sale -36.2% $6,906,250 $21.25 -325,000 574,047 22 Jul 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Sale -36.2% $6,906,250 $21.25 -325,000 574,047 22 Jul 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Sale -36.2% $6,906,250 $21.25 -325,000 574,047 22 Jul 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Sale -36.2% $6,906,250 $21.25 -325,000 574,047 22 Jul 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Sale -36.2% $6,906,250 $21.25 -325,000 574,047 22 Jul 2026 See footnote
Andrew Pedrum Maleki SRZN Common Stock Award 607 607 15 Jun 2026 Direct
Yang Li SRZN Common Stock Award 9.68% 1,666 18,882 15 Jun 2026 Direct
Williams Charles O SRZN Common Stock Award 10% 1,666 18,237 15 Jun 2026 Direct
Craig C. Parker SRZN Common Stock Award 9.8% 1,622 18,175 15 Jun 2026 Direct
Tim Kutzkey SRZN Option (right to buy) Award 5,550 5,550 13 May 2026 Direct
Mace Rothenberg SRZN Director Stock Option (right to buy) Award 5,550 5,550 13 May 2026 Direct
David J. Woodhouse SRZN Director Stock Option (right to buy) Award 5,550 5,550 13 May 2026 Direct
Mary Haak-Frendscho SRZN Director Stock Option (right to buy) Award 5,550 5,550 13 May 2026 Direct
Christopher Y. Chai SRZN Director Stock Option (right to buy) Award 5,550 5,550 13 May 2026 Direct
Eric Bjerkholt SRZN Director Stock Option (right to buy) Award 5,550 5,550 13 May 2026 Direct
Anna Berkenblit SRZN Director Stock Option (right to buy) Award 5,550 5,550 13 May 2026 Direct
Yang Li SRZN Common Stock Sale -8.43% $52,799 $33.33 -1,584 17,216 04 May 2026 Direct
Williams Charles O SRZN Common Stock Sale -10.9% $67,866 $33.33 -2,036 16,571 04 May 2026 Direct
Craig C. Parker SRZN Common Stock Sale -21.5% $150,798 $33.33 -4,524 16,553 04 May 2026 Direct
Yang Li SRZN Common Stock Options Exercise 30.3% 4,375 18,800 01 May 2026 Direct
Yang Li SRZN Restricted Stock Unit Options Exercise -50% -4,375 4,375 01 May 2026 Direct
Williams Charles O SRZN Common Stock Options Exercise 43.3% 5,625 18,607 01 May 2026 Direct
Williams Charles O SRZN Restricted Stock Unit Options Exercise -50% -5,625 5,625 01 May 2026 Direct
Craig C. Parker SRZN Common Stock Options Exercise 145.7% 12,500 21,077 01 May 2026 Direct
Craig C. Parker SRZN Restricted Stock Unit Options Exercise -50% -12,500 12,500 01 May 2026 Direct
Yang Li SRZN Common Stock Gift -10.4% -1,666 14,425 31 Mar 2026 Direct
TCG Crossover GP II, LLC SRZN Common Stock Purchase 16.9% $2,633,717 $24.69 106,658 736,554 24 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 16.9% $2,633,717 $24.69 106,658 736,554 24 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 16.9% $2,633,717 $24.69 106,658 736,554 24 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 16.9% $2,633,717 $24.69 106,658 736,554 24 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 2.28% $379,051 $24.90 15,223 683,225 23 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 2.28% $379,051 $24.90 15,223 683,225 23 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 2.28% $379,051 $24.90 15,223 683,225 23 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 2.28% $379,051 $24.90 15,223 683,225 23 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 0.18% $29,733 $24.99 1,190 675,613 16 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 5.54% $881,463 $24.88 35,433 675,018 13 Mar 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 1.92% $309,166 $24.99 12,374 657,301 12 Mar 2026 See footnote
Yang Li SRZN Restricted Stock Unit Award 100,950 100,950 17 Feb 2026 Direct
Yang Li SRZN Employee Stock Option (right to buy) Award 100,950 100,950 17 Feb 2026 Direct
Williams Charles O SRZN Restricted Stock Unit Award 102,900 102,900 17 Feb 2026 Direct
Williams Charles O SRZN Employee Stock Option (right to buy) Award 102,900 102,900 17 Feb 2026 Direct
Craig C. Parker SRZN Restricted Stock Unit Award 242,200 242,200 17 Feb 2026 Direct
Craig C. Parker SRZN Employee Stock Option (right to buy) Award 242,200 242,200 17 Feb 2026 Direct
TCG Crossover GP II, LLC SRZN Common Stock Purchase 0.17% $26,082 $23.86 1,093 651,114 12 Feb 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 2.81% $418,763 $23.58 17,763 650,567 11 Feb 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 0.68% $95,549 $21.94 4,355 641,685 03 Feb 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 0.11% $15,629 $21.38 731 639,507 02 Feb 2026 See footnote
TCG Crossover GP II, LLC SRZN Common Stock Purchase 0.67% $91,357 $21.39 4,271 639,141 30 Jan 2026 See footnote
Williams Charles O SRZN Employee Stock Option (right to buy) Award 500 500 23 Jan 2026 Direct
Column Group III Gp, Lp SRZN Common Stock Purchase 0.95% $187,532 $19.60 9,568 1,016,658 20 Jan 2026 By The Column Group III-A, LP
* marks a reported price that did not pass the local price check.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .