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Disclosery

SRZN SURROZEN INC

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COMMON STOCK (common), issuer CIK 1824893

54 managers (54 13F filers) reported a position in SRZN shares at 2025-12-31, 7,141,706 shares in all. 23 filers opened a position and 7 filers sold out during the quarter.

Managers
54
13F filers
54
New
23
Added
16
Reduced
2
Sold out
7
Shares held by filers
7,141,706

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC721,266$16.3M0.01%+611,49713F-HRTimelineGroup
Venrock Adviser, LLC632,931$14.3M0.71%013F-HRTimeline
STEMPOINT CAPITAL LP619,766$12.7M2.17%-93,69713F-HRTimeline
BRAIDWELL LP470,000$10.6M0.34%+330,00013F-HRTimeline
Spruce Street Capital LP432,040$9.76M3.23%13F-HRTimeline
Boxer Capital Management, LLCin group Boxer Capital Management, LLC416,150$9.4M2.06%new13F-HRTimelineGroup
5AM Venture Management, LLC387,500$8.76M2.75%+77,50013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC319,236$7.21M<0.01%+52,81813F-HRTimelineGroup
Vivo Capital, LLC260,000$5.88M0.38%013F-HRTimeline
Woodline Partners LP230,572$5.21M0.02%+182,37913F-HRTimeline
Nantahala Capital Management, LLCin group Nantahala Capital Management,…229,527$5.19M0.31%013F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management190,489$4.31M0.01%+119,75713F-HRTimelineGroup
ACUTA CAPITAL PARTNERS, LLC178,415$4.03M2.74%013F-HRTimeline
SILVERARC CAPITAL MANAGEMENT, LLCin group SILVERARC CAPITAL MANAGEMENT,…157,323$3.56M0.51%new13F-HRTimelineGroup
REGENTS OF THE UNIVERSITY OF CALIFORNIA133,207$3.01M0.11%013F-HR/ATimeline
Stonepine Capital Management, LLC113,631$2.57M2.03%-136,51513F-HRTimeline
Empery Asset Management, LP103,974$2.35M2.07%13F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC99,560$2.25M0.01%new13F-HRTimelineGroup
Eversept Partners, LP95,286$2.15M0.12%+18,28913F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…88,653$2M<0.01%013F-HRTimelineGroup
Euclidean Capital LLC87,696$1.98M0.54%013F-HRTimeline
Kalehua Capital Management LLC385,178$1.89M1.87%13F-HRTimeline
Schonfeld Strategic Advisors LLC74,645$1.69M0.01%+5,62113F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC66,995$1.51M<0.01%+12,46813F-HRTimelineGroup
Ikarian Capital, LLCin group Ikarian Capital, LLC65,788$1.49M0.19%new13F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC65,688$1.48M<0.01%new13F-HRTimelineGroup
ArrowMark Colorado Holdings LLC55,123$1.25M0.03%013F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC41,999$949K0.08%new13F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC41,041$928K0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY36,961$835K<0.01%+2,19713F-HR/ATimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/29,608$669K<0.01%+29,60213F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC27,622$624K<0.01%new13F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.26,118$590K<0.01%+12,37513F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC25,823$584K<0.01%new13F-HR/ATimelineGroup
STATE STREET CORPin group STATE STREET CORP24,326$550K<0.01%+11,00013F-HRTimelineGroup
LMR Partners LLPin group LMR Partners LLP23,557$532K0.01%new13F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC22,626$511K<0.01%+7,90013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/21,715$491K<0.01%013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…18,921$428K0.01%new13F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC18,307$414K0.01%new13F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd14,802$335K<0.01%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC14,740$333K<0.01%+86513F-HRTimelineGroup
OMERS ADMINISTRATION Corp13,700$310K<0.01%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP13,530$306K<0.01%new13F-HRTimelineGroup
IEQ CAPITAL, LLC13,471$304K<0.01%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP10,939$247K<0.01%new13F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.10,188$230K<0.01%013F-HRTimelineGroup
Persistent Asset Partners Ltd4,359$98.5K0.05%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS2,520$57K<0.01%new13F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC1,508$34K<0.01%new13F-HRTimelineGroup
China Universal Asset Management Co., L…1,500$33.9K<0.01%+50013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC1,062$24K<0.01%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG59$1.33K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA65$1K<0.01%new13F-HRTimelineGroup

Events

  • Boxer Capital Management, LLC and 3 other reporting persons reported 1,360,683 SRZN shares, 11.6% of the class, as of 2026-09-30, in a 13G/A filed 2026-10-07. 0001213900-26-107661

    Accepted , ingested

  • Commodore Capital LP and 3 other reporting persons reported 885,000 SRZN shares, 7.5% of the class, as of 2026-09-24, in a 13G filed 2026-10-01. 0001831942-26-000044

    Accepted , ingested