SRZN · Surrozen, Inc. · Shareholders & Ownership

$25.32 +0.18 (+0.72%) At close · Oct 21

Russell 2000 member Rebalance outlook locked

Market Cap

$295.48M

11.75M

Volume · Oct 21 118.85K Avg daily vol (3M) 534.57K

Every disclosed holder of SRZN in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns SRZN

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	79	14,998,673	127.61%	Yes
Insiders (Forms 3, 4, 5)	0	0	0.00%	No
13D/G-only blocks	12	11,793,862	100.34%	Yes
Remaining	—	15,038,977	-127.95%	Negative
Registered funds (N-PORT, not summed)	57	872,724	7.43%	No

Shares outstanding: 11,753,558, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of SRZN

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	The Column Group IV GP, LP 13D CIK 1796356 · Unknown · Feb 6, 2026	4,460,979	37.95%	—	Feb 6, 2026
2	The Column Group III GP, LP 13D CIK 1790965 · Unknown · Mar 31, 2026 Item 4 purpose: none of the classified purposes not summed	2,962,544	25.21%	0	Mar 31, 2026	not summed
2.1	COLUMN GROUP III GP, LP Insider CIK 1790965 · Jan 20, 2026 10% Owner, issuer-wide, not summed	1,016,658	8.65%	—	Jan 20, 2026	10% Owner, issuer-wide, not summed
3	Column Group LLC 13F CIK 1833486 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,916,950	16.31%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
4	TCG Crossover Management, LLC 13F CIK 1839948 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,473,101	12.53%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
5	Boxer Capital Management, LLC 13G CIK 2018299 · Registered investment adviser · Sep 30, 2026 Rule 13d-1(b), qualified institution, not summed	1,360,683	11.58%	+321,666	Sep 30, 2026	Rule 13d-1(b), qualified institution, not summed
5.1	Boxer Capital Management, LLC 13F CIK 2018299 · Registered investment adviser · Jun 30, 2026 Classes SRZN, SRZNW, carried, not yet filed for the newest quarter	1,172,349	9.97%	+339,365	Jun 30, 2026	Classes SRZN, SRZNW, carried, not yet filed for the newest quarter
6	Venrock Healthcare Capital Partners III, L.P. 13G CIK 1738048 · Unknown · Mar 31, 2026 Rule 13d-1(c), passive investor	1,205,000	10.25%	+332,454	Mar 31, 2026	Rule 13d-1(c), passive investor
7	TCG Crossover GP II, LLC 13G CIK 1969280 · Unknown · Jul 22, 2026 Rule 13d-1(c), passive investor	1,148,101	9.77%	-325,000	Jul 22, 2026	Rule 13d-1(c), passive investor
7.1	TCG Crossover GP II, LLC Insider CIK 1969280 · Jul 22, 2026 10% Owner, issuer-wide, not summed	574,047	4.88%	—	Jul 22, 2026	10% Owner, issuer-wide, not summed
8	Kutzkey Tim Insider CIK 1614186 · Jan 20, 2026 Director, 10% Owner, issuer-wide, not summed	1,016,658	8.65%	—	Jan 20, 2026	Director, 10% Owner, issuer-wide, not summed
9	5AM Partners VII, LLC 13G CIK 1873545 · Unknown · Jun 30, 2026 Rule 13d-1(c), passive investor	968,750	8.24%	-193,750	Jun 30, 2026	Rule 13d-1(c), passive investor
10	Commodore Capital LP 13G CIK 1831942 · Registered investment adviser · Sep 24, 2026 Rule 13d-1(c), passive investor	885,000	7.53%	—	Sep 24, 2026	Rule 13d-1(c), passive investor
11	RA CAPITAL MANAGEMENT, L.P. 13G CIK 1346824 · Registered investment adviser · Dec 31, 2025 Rule 13d-1(c), passive investor	871,731	7.42%	+4,313	Dec 31, 2025	Rule 13d-1(c), passive investor
12	AI Biotechnology LLC 13G CIK 1942670 · Unknown · Mar 24, 2025 Rule 13d-1(c), passive investor	844,563	7.19%	—	Mar 24, 2025	Rule 13d-1(c), passive investor
13	BAKER BROS. ADVISORS LP 13F CIK 1263508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	833,333	7.09%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
14	Millennium Management LLC 13G CIK 1319244 · Unknown · Dec 31, 2025 Rule 13d-1(c), passive investor	726,193	6.18%	+161,346	Dec 31, 2025	Rule 13d-1(c), passive investor
15	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	683,079	5.81%	-48,059	Jun 30, 2026	carried, not yet filed for the newest quarter
16	PERCEPTIVE ADVISORS LLC 13F CIK 1224962 · Registered investment adviser · Jun 30, 2026 Classes SRZN, SRZNW, carried, not yet filed for the newest quarter	670,651	5.71%	+274,592	Jun 30, 2026	Classes SRZN, SRZNW, carried, not yet filed for the newest quarter
17	Point72 Asset Management, L.P. 13F CIK 1603466 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	664,272	5.65%	+664,272	Jun 30, 2026	carried, not yet filed for the newest quarter
18	LMR Partners LLP 13F CIK 1578621 · Exempt reporting adviser · Jun 30, 2026 Classes SRZN, SRZNW, carried, not yet filed for the newest quarter	661,842	5.63%	-10,000	Jun 30, 2026	Classes SRZN, SRZNW, carried, not yet filed for the newest quarter
19	Venrock Adviser, LLC 13F CIK 1615982 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	632,931	5.39%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
20	STEMPOINT CAPITAL LP 13F CIK 1952142 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	602,798	5.13%	+77,159	Jun 30, 2026	carried, not yet filed for the newest quarter
20.1	STEMPOINT CAPITAL LP 13G CIK 1952142 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	602,798	5.13%	+77,159	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
21	BRIDGER MANAGEMENT, LLC 13F CIK 1166309 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	442,052	3.76%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
22	Spruce Street Capital LP 13F CIK 2050194 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	432,040	3.68%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
23	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	394,864	3.36%	+367,013	Jun 30, 2026	carried, not yet filed for the newest quarter
23.1	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	161,295	1.37%	—	Jun 30, 2026	iShares Trust, not summed
23.2	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	62,426	0.53%	—	Jun 30, 2026	iShares Trust, not summed
23.3	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	23,661	0.20%	+11,433	Jun 30, 2026	iShares Trust, not summed
23.4	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	12,411	0.11%	—	Jun 30, 2026	Quantitative Master Series LLC, not summed
23.5	iShares Russell Small/Mid-Cap Index Fund Fund S000050373 · Registered fund · Jul 31, 2026 BlackRock Funds, not summed	1,611	0.01%	—	Jul 31, 2026	BlackRock Funds, not summed
24	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	392,550	3.34%	+223,458	Jun 30, 2026	carried, not yet filed for the newest quarter
25	BRAIDWELL LP 13F CIK 1920938 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	390,753	3.32%	-5,347	Jun 30, 2026	carried, not yet filed for the newest quarter
25.1	BRAIDWELL LP 13G CIK 1920938 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	460,753	3.92%	-9,247	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
26	Kalehua Capital Management LLC 13F CIK 2106181 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	385,178	3.28%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
27	Stonepine Capital Management, LLC 13G CIK 1440771 · Registered investment adviser · Dec 31, 2025 Rule 13d-1(c), passive investor	316,289	2.69%	-192,398	Dec 31, 2025	Rule 13d-1(c), passive investor
28	Vestal Point Capital, LP 13F CIK 1974915 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	304,669	2.59%	-33,942	Jun 30, 2026	carried, not yet filed for the newest quarter
29	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	282,365	2.40%	+184,730	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
30	5AM Venture Management, LLC 13F CIK 1799883 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	271,250	2.31%	-116,250	Jun 30, 2026	carried, not yet filed for the newest quarter
31	Vivo Capital, LLC 13F CIK 1674712 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	260,000	2.21%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
32	Euclidean Capital LLC 13F CIK 1825034 · Unknown · Jun 30, 2026 Classes SRZN, SRZNW, carried, not yet filed for the newest quarter	258,529	2.20%	0	Jun 30, 2026	Classes SRZN, SRZNW, carried, not yet filed for the newest quarter
33	Nantahala Capital Management, LLC 13G CIK 1472322 · Registered investment adviser · Mar 31, 2026 Rule 13d-1(b), qualified institution	225,772	1.92%	-229,527	Mar 31, 2026	Rule 13d-1(b), qualified institution
34	REGENTS OF THE UNIVERSITY OF CALIFORNIA 13F CIK 315054 · Pension or benefit plan · Jun 30, 2026 Classes SRZN, SRZNW, carried, not yet filed for the newest quarter	216,540	1.84%	0	Jun 30, 2026	Classes SRZN, SRZNW, carried, not yet filed for the newest quarter
35	Balyasny Asset Management L.P. 13F CIK 1218710 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	205,032	1.74%	+1,144	Jun 30, 2026	carried, not yet filed for the newest quarter
36	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	201,652	1.72%	+135,803	Jun 30, 2026	carried, not yet filed for the newest quarter
37	ACUTA CAPITAL PARTNERS, LLC 13F CIK 1582844 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	173,395	1.48%	+548	Jun 30, 2026	carried, not yet filed for the newest quarter
38	DEERFIELD MANAGEMENT COMPANY, L.P. 13F CIK 1009258 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	166,666	1.42%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
39	ArrowMark Colorado Holdings LLC 13F CIK 1483859 · Registered investment adviser · Jun 30, 2026 Classes SRZN, SRZNW, carried, not yet filed for the newest quarter	163,456	1.39%	0	Jun 30, 2026	Classes SRZN, SRZNW, carried, not yet filed for the newest quarter
40	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	133,084	1.13%	+105,358	Jun 30, 2026	carried, not yet filed for the newest quarter
40.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	3,500	0.03%	—	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
40.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	185	0.00%	—	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
41	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	113,531	0.97%	+87,680	Jun 30, 2026	carried, not yet filed for the newest quarter
42	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	102,939	0.88%	+38,728	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
43	ADAGE CAPITAL PARTNERS GP, L.L.C. 13F CIK 1165408 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	88,653	0.75%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
44	NANTAHALA CAPITAL PARTNERS LIMITED PARTNERSHIP 13G CIK 1502725 · Unknown · Mar 31, 2025 Rule 13d-1(c), passive investor	73,918	0.63%	-103,052	Mar 31, 2025	Rule 13d-1(c), passive investor
45	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	71,119	0.61%	+31,637	Jun 30, 2026	carried, not yet filed for the newest quarter
46	PRICE T ROWE ASSOCIATES INC /MD/ 13F CIK 80255 · Registered investment adviser · Jun 30, 2026 Classes SRZN, SRZNW, carried, not yet filed for the newest quarter	69,407	0.59%	+6,026	Jun 30, 2026	Classes SRZN, SRZNW, carried, not yet filed for the newest quarter
46.1	T. Rowe Price Small-Cap Index Fund Fund S000051327 · Registered fund · Jun 30, 2026 T. ROWE PRICE INDEX TRUST, INC., not summed	1,108	0.01%	—	Jun 30, 2026	T. ROWE PRICE INDEX TRUST, INC., not summed
47	Driehaus Capital Management LLC 13G CIK 938206 · Registered investment adviser · Jun 30, 2025 Rule 13d-1(b), qualified institution	67,566	0.57%	-137,368	Jun 30, 2025	Rule 13d-1(b), qualified institution
48	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	63,609	0.54%	+51,344	Jun 30, 2026	carried, not yet filed for the newest quarter
48.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	3,790	0.03%	—	Jun 30, 2026	Northern Funds, not summed
49	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	59,575	0.51%	+24,185	Jun 30, 2026	carried, not yet filed for the newest quarter
50	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	51,026	0.43%	+51,026	Jun 30, 2026	carried, not yet filed for the newest quarter

1 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 134 holders

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Key facts CIK 1824893 CUSIP 86889P208 13F (30d) 4 filings 4 filers Visit website Investor relations