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Disclosery

ZBIO ZENAS BIOPHARMA INC

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Stock (common), issuer CIK 1953926

80 managers (80 13F filers) reported a position in ZBIO shares at 2025-09-30, 34,825,741 shares in all. 14 filers opened a position and 7 filers sold out during the quarter.

Managers
80
13F filers
80
New
14
Added
23
Reduced
21
Sold out
7
Shares held by filers
34,825,741

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

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
SR One Capital Management, LP4,911,539$109M15.77%013F-HRTimeline
FMR LLCin group FMR LLC4,820,370$107M0.01%+1,496,83613F-HRTimelineGroup
ENAVATE SCIENCES GP, LLC3,761,359$83.5M25.49%013F-HRTimeline
NEA Management Company, LLC2,733,719$60.7M3.33%013F-HRTimeline
NOVO HOLDINGS A/S2,000,000$44.4M2.86%-250,00013F-HRTimeline
Fairmount Funds Management LLCin group Fairmount Funds Management LLC1,892,806$42M3.78%013F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.1,861,838$41.3M0.07%013F-HRTimelineGroup
NVP ASSOCIATES, LLC1,838,482$40.8M24.58%013F-HRTimeline
DEERFIELD MANAGEMENT COMPANY, L.P.in group DEERFIELD MANAGEMENT COMPANY,…1,562,942$34.7M0.53%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.1,228,641$27.3M<0.01%+133,03213F-HRTimelineGroup
Vivo Capital, LLC1,183,260$26.3M2.11%013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC1,162,758$25.8M<0.01%+170,54613F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…857,524$19M<0.01%-21,39413F-HRTimelineGroup
ArrowMark Colorado Holdings LLC824,668$18.3M0.34%-269,67013F-HRTimeline
Pivotal bioVenture Partners Investment …in group Pivotal bioVenture Partners I…779,045$17.3M10%013F-HRTimelineGroup
Rock Springs Capital Management LP580,677$12.9M0.75%-59,79013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC470,035$10.4M<0.01%+96,41813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP377,485$8.38M<0.01%+67,24913F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/374,298$8.31M<0.01%-110,90413F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co178,396$3.96M<0.01%+56,18613F-HRTimelineGroup
Eversept Partners, LP158,742$3.52M0.27%-166,73713F-HRTimeline
SECTORAL ASSET MANAGEMENT INC152,025$3.37M2.08%-58,60013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.145,796$3.24M<0.01%new13F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP133,278$2.96M<0.01%+13,76313F-HRTimelineGroup
SUMMIT WEALTH GROUP LLC / CO51,356$2.69M0.29%new13F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP112,612$2.32M<0.01%-42,30413F-HRTimeline
SUPERSTRING CAPITAL MANAGEMENT LP96,665$2.15M2.11%-14,94013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY88,733$1.97M<0.01%-35,56813F-HR/ATimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC71,850$1.6M<0.01%new13F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp41,688$925K<0.01%+3,25513F-HRTimelineGroup
STEMPOINT CAPITAL LP38,742$860K0.17%new13F-HRTimeline
UBS Group AGgroup of 2 filers holding35,492$788K-3,671Timeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC24,584$546K<0.01%-8413F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC22,876$508K<0.01%-4,93713F-HR/ATimelineGroup
RHUMBLINE ADVISERS21,214$471K<0.01%+1,49313F-HRTimeline
Nuveen, LLCin group TIAA20,519$456K<0.01%-11,10713F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP20,382$452K<0.01%+76513F-HRTimelineGroup
ALPS ADVISORS INCin group ALPS ADVISORS INC20,042$445K<0.01%-2,51113F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.18,350$407K<0.01%+1,99013F-HRTimeline
Birchview Capital, LP16,500$366K0.28%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/14,809$329K<0.01%+81813F-HR/ATimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN12,455$277K<0.01%+2,03113F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\12,227$271K<0.01%+11,94713F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA11,881$265K<0.01%+10,54713F-HRTimelineGroup
Creative Planningin group Creative Planning11,882$264K<0.01%new13F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC10,981$244K<0.01%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…10,100$224K<0.01%013F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…7,461$166K<0.01%-1,42513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO6,548$145K<0.01%-1,12813F-HR/ATimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND6,200$138K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…5,843$130K<0.01%-3,33613F-HRTimelineGroup
Police & Firemen's Retirement System of…4,499$99.9K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,146$69.8K<0.01%+1,71613F-HRTimelineGroup
STRS OHIO2,800$62.2K<0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,608$35.7K<0.01%013F-HRTimelineGroup
CWM, LLCin group CWM, LLC1,469$33K<0.01%+413F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,388$30.8K<0.01%-1,15813F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,354$30K<0.01%-19413F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…1,345$29.9K<0.01%new13F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,145$25.4K<0.01%+113F-HRTimeline
Quarry LP1,134$25.2K0.01%+29113F-HRTimeline
Sterling Capital Management LLC1,121$24.9K<0.01%+68213F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\953$21.2K<0.01%-10813F-HRTimelineGroup
AMALGAMATED BANK524$12K<0.01%013F-HRTimeline
Aster Capital Management (DIFC) Ltd339$7.53K<0.01%new13F-HRTimeline
SIGNATUREFD, LLC332$7.37K<0.01%+3713F-HRTimeline
CITIGROUP INCin group CITIGROUP INC188$4.17K<0.01%-5,26313F-HRTimelineGroup
GAMMA Investing LLC183$4.06K<0.01%+10413F-HRTimeline
NISA INVESTMENT ADVISORS, LLC115$2.55K<0.01%013F-HRTimeline
Arax Advisory Partners115$2.55K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.104$2.31K<0.01%new13F-HRTimelineGroup
Physician Wealth Advisors, Inc.67$1.49K<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…58$1.29K<0.01%013F-HRTimelineGroup
Farther Finance Advisors, LLC24$533<0.01%new13F-HRTimeline
Clearstead Advisors, LLC23$511<0.01%013F-HRTimeline
Global Retirement Partners, LLC15$333<0.01%new13F-HRTimeline
Sunbelt Securities, Inc.11$244<0.01%new13F-HRTimeline
True Wealth Design, LLC3$67<0.01%013F-HRTimeline
Essential Partners LLC2$44<0.01%013F-HRTimeline
SBI Securities Co., Ltd.1$22<0.01%new13F-HRTimeline