Surrozen, Inc. (SRZN)
Nasdaq: SRZN · Biological Products, (No Diagnostic Substances) · South San Francisco, CA · filing with the SEC since 2020
Who owns Surrozen, Inc.
As filed with the SECHolders of 5% or more
11
Tim Kutzkey holds 21.5% of Common Stock, $0.0001 par value per share, as its SCHEDULE 13D/A filed Oct 22, 2026 says.
Directors and officers
11
report now, of 26 people on the record since 2020. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 11 named at left.
Holders of 5% or moreshare of the class, as filed
Tim Kutzkey
SCHEDULE 13D/A · filed Oct 22, 2026 · Common Stock, $0.0001 par value per share · 29.3% in May 18, 2026
Boxer Capital Management, LLC
SCHEDULE 13G/A · filed Oct 7, 2026 · Common Stock, $0.0001 par value per share · 8.9% in Aug 14, 2026
Chen Yu
SCHEDULE 13G/A · filed Jul 24, 2026 · Common Stock, par value $0.0001 per share · 12.7% in May 15, 2026
Venrock Healthcare Capital Partners III, L.P.
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock, $0.0001 par value per share · 9.9% in Apr 2, 2025
AI Biotechnology LLC
SCHEDULE 13G · filed Mar 31, 2025 · Common stock, par value $0.00001 per share
RA Capital Management, L.P.
SCHEDULE 13G/A · filed Feb 17, 2026 · Common Stock, $0.0001 par value per share · 9.9% in May 15, 2025
Millennium Management LLC
SCHEDULE 13G/A · filed Feb 5, 2026 · Common Stock, par value $0.0001 per share · 6.6% in Nov 20, 2025
5AM Partners VII, LLC
SCHEDULE 13G/A · filed Aug 11, 2026 · Common Stock, $0.0001 par value per share · 9.5% in May 15, 2026
Commodore Capital LP
SCHEDULE 13G · filed Oct 1, 2026 · Common Stock, $0.0001 par value per share
Point72 Asset Management, L.P.
SCHEDULE 13G · filed Apr 23, 2026 · Common Stock, par value $0.0001 per share
StemPoint Capital LP
SCHEDULE 13G · filed Aug 14, 2026 · Common Stock, $0.0001 par value per share · 4.5% in May 15, 2026
Braidwell LP
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock, $0.0001 par value per share · reported falling below 5%, from 5.5% in Feb 17, 2026
Stonepine Capital Management, LLC
SCHEDULE 13G/A · filed Feb 13, 2026 · Common Stock · reported falling below 5%, from 5.8% in Aug 13, 2025
Nantahala Capital Partners Limited Partnership
SCHEDULE 13G/A · filed May 15, 2025 · Common Stock, $0.0001 par value per share · reported falling below 5%, from 5.28% in Nov 14, 2024
Nantahala Capital Management, LLC
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock, $0.0001 par value per share · reported falling below 5%, from 5.18% in Aug 14, 2025
Perceptive Advisors LLC
SCHEDULE 13G/A · filed May 15, 2025 · Common Stock, $0.0001 par value per share · reported falling below 5%, from 5.1% in Feb 14, 2025
Alyeska Investment Group, L.P.
SCHEDULE 13G/A · filed Feb 14, 2025 · Common Stock, $0.0001 par value per share · reported falling below 5%
Driehaus Capital Management LLC
SCHEDULE 13G/A · filed Aug 14, 2025 · Common Stock · reported falling below 5%, from 6.25% in May 15, 2025
What SRZN reports owning in othersstakes of 5% or more, and other ties
2 subsidiaries in 1 country, from the list filed with the 10-K filed Mar 31, 2023.
Insider tradesForm 4
5sales
18purchases
0sales on a scheduled plan
3people selling
$300,000sold, in dollars
$6.0Mbought, in dollars
Open-market trades on Form 4 from Oct 22, 2025 to Oct 22, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 22, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window10 of 38 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Yu Chen-Ming | 10% owner | 2 | $6.9M | 0 | 0 | $0 |
| Parker Craig C | Chief Executive Officer | 1 | $200,000 | 0 | 0 | $0 |
| Li Yang | Exec. Vice President, Research | 2 | $100,000 | 0 | 0 | $0 |
| Williams Charles O | Chief Operating Officer | 2 | $100,000 | 0 | 0 | $0 |
| Kutzkey Tim | director | 0 | $0 | 0 | 18 | $6.0M |
| Tcg Crossover Fund II, L.P. | 10% owner | 0 | $0 | 0 | 14 | $4.7M |
| Column Group III Gp, LP | 10% owner | 0 | $0 | 0 | 8 | $5.0M |
| Column Group Opportunity III Gp, LP | 10% owner | 0 | $0 | 0 | 6 | $600,000 |
| Tcg Crossover Gp III, LLC | 10% owner | 0 | $0 | 0 | 6 | $200,000 |
| Tcg Opportunity III Gp, LLC | 10% owner | 0 | $0 | 0 | 4 | $400,000 |