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Disclosery

ZBIO ZENAS BIOPHARMA INC

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Stock (common), issuer CIK 1953926

117 managers (119 13F filers) reported a position in ZBIO shares at 2025-12-31, 42,824,517 shares in all. 41 filers opened a position and 8 filers sold out during the quarter.

Managers
117
13F filers
119
New
41
Added
37
Reduced
24
Sold out
8
Shares held by filers
42,824,517

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, 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
FMR LLCin group FMR LLC7,704,255$280M0.01%+2,883,88513F-HRTimelineGroup
SR One Capital Management, LP5,037,854$183M25.9%+126,31513F-HRTimeline
ENAVATE SCIENCES GP, LLC3,919,159$142M28.08%+157,80013F-HRTimeline
NEA Management Company, LLC3,523,219$128M6.52%+789,50013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.2,715,578$98.6M0.16%+853,74013F-HRTimelineGroup
Fairmount Funds Management LLCin group Fairmount Funds Management LLC2,209,025$80.2M6.11%+316,21913F-HRTimelineGroup
NVP ASSOCIATES, LLC1,838,482$66.8M26.16%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.1,767,518$64.2M<0.01%+538,87713F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC1,453,065$52.8M<0.01%+290,30713F-HRTimelineGroup
NOVO HOLDINGS A/S1,450,000$52.6M4.09%-550,00013F-HRTimeline
Royalty Pharma Sub-Manager, LLCin group Royalty Pharma Sub-Manager, L…1,263,150$45.9M26.77%13F-HR/ATimelineGroup
Polar Capital Holdings Plcin group Polar Capital Holdings Plc1,057,609$38.4M0.18%new13F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…855,334$31.1M0.01%-2,19013F-HRTimelineGroup
Vivo Capital, LLC853,495$31M2%-329,76513F-HRTimeline
EcoR1 Capital, LLC789,500$28.7M1.31%new13F-HRTimeline
ArrowMark Colorado Holdings LLC751,161$27.3M0.6%-73,50713F-HRTimeline
Pivotal bioVenture Partners Investment …in group Pivotal bioVenture Partners I…591,991$21.5M8.31%-187,05413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC588,393$21.4M<0.01%+118,35813F-HRTimelineGroup
Rock Springs Capital Management LP502,077$18.2M0.94%-78,60013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP438,294$15.9M<0.01%+60,80913F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/369,248$13.4M<0.01%-5,05013F-HRTimeline
NEXTBio Capital Management LP321,983$11.7M6.86%13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.368,400$9.21M0.01%new13F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co213,193$7.74M<0.01%+34,79713F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management193,153$7.01M0.01%new13F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.187,968$6.83M<0.01%+42,17213F-HRTimelineGroup
Skandinaviska Enskilda Banken AB (publ)163,860$5.95M0.02%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP155,366$5.64M<0.01%+22,08813F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC133,439$4.85M0.02%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC130,698$4.75M<0.01%new13F-HR/ATimelineGroup
MORGAN STANLEYin group MORGAN STANLEY128,335$4.66M<0.01%+39,60213F-HR/ATimelineGroup
Eversept Partners, LP121,016$4.39M0.25%-37,72613F-HRTimeline
SUPERSTRING CAPITAL MANAGEMENT LP83,353$3.03M1.62%-13,31213F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC78,220$2.84M<0.01%+53,63613F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding77,895$2.83M+42,403Timeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp51,802$1.88M<0.01%+10,11413F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP50,636$1.85M<0.01%-61,97613F-HRTimeline
Nuveen, LLCin group TIAA50,850$1.85M<0.01%+30,33113F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC49,160$1.78M<0.01%-22,69013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/47,160$1.71M<0.01%+32,35113F-HRTimelineGroup
ALPS ADVISORS INCin group ALPS ADVISORS INC44,077$1.6M0.01%+24,03513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC34,377$1.25M<0.01%+11,50113F-HRTimelineGroup
Swiss National Bank31,600$1.15M<0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC24,459$888K<0.01%new13F-HRTimelineGroup
RHUMBLINE ADVISERS21,946$797K<0.01%+73213F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO21,726$789K<0.01%+15,17813F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN21,151$768K<0.01%+8,69613F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.18,350$666K<0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…15,701$570K<0.01%+14,55613F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC15,541$564K<0.01%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP15,100$548K<0.01%-5,28213F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC14,725$535K<0.01%new13F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…13,678$497K<0.01%new13F-HRTimelineGroup
China Universal Asset Management Co., L…13,314$483K0.04%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc13,027$473K<0.01%+11,67313F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\12,781$464K<0.01%+55413F-HRTimelineGroup
Creative Planningin group Creative Planning12,273$446K<0.01%+39113F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd12,183$442K0.01%new13F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC14,447$432K<0.01%new13F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding11,388$413K+3,927Timeline
STATE OF WISCONSIN INVESTMENT BOARD10,221$371K<0.01%new13F-HRTimeline
Voleon Capital Management LP10,187$370K0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…10,100$367K<0.01%013F-HRTimelineGroup
Schonfeld Strategic Advisors LLC9,127$331K<0.01%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP8,956$325K0.03%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC8,863$322K<0.01%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson7,900$287K<0.01%new13F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC7,676$279K<0.01%new13F-HRTimelineGroup
VARCOV Co.7,335$266K0.11%13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS7,138$259K<0.01%+3,99213F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP7,100$258K<0.01%new13F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…6,554$238K0.06%new13F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …6,256$227K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND6,200$225K<0.01%013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…6,173$224K<0.01%new13F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…5,824$211K<0.01%-1913F-HRTimelineGroup
ProShare Advisors LLC5,820$211K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…4,499$163K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS3,400$123K<0.01%new13F-HRTimeline
STRS OHIO2,800$102K<0.01%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC2,351$85.4K<0.01%+2,16313F-HRTimelineGroup
CWM, LLCin group CWM, LLC2,178$79K<0.01%+70913F-HRTimelineGroup
SIMPLEX TRADING, LLC1,974$71.7K<0.01%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,368$49.7K<0.01%-24013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…1,345$48.8K<0.01%013F-HRTimelineGroup
Sterling Capital Management LLC1,087$39.5K<0.01%-3413F-HRTimeline
GF FUND MANAGEMENT CO. LTD.1,054$38.3K<0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\884$32.1K<0.01%-6913F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…795$28.9K<0.01%-59313F-HRTimelineGroup
AMALGAMATED BANK593$22K<0.01%+6913F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA544$20K<0.01%-11,33713F-HRTimelineGroup
SIGNATUREFD, LLC389$14.1K<0.01%+5713F-HRTimeline
GAMMA Investing LLC179$6.5K<0.01%-413F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.179$6K<0.01%new13F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC115$4.18K<0.01%013F-HRTimeline
Torren Management, LLC95$3.45K<0.01%13F-HRTimeline
J.Safra Asset Management Corp92$3.34K<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC86$3.12K<0.01%+6213F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…73$2.65K<0.01%+1513F-HRTimelineGroup
Physician Wealth Advisors, Inc.67$2.43K<0.01%013F-HRTimeline
Allworth Financial LP47$1.71K<0.01%new13F-HRTimeline
Aster Capital Management (DIFC) Ltd42$1.52K<0.01%-29713F-HRTimeline
Cornerstone Financial Management LLC26$944<0.01%13F-HR/ATimeline
Larson Financial Group LLC19$690<0.01%new13F-HRTimeline
IFP Advisors, Inc12$436<0.01%new13F-HRTimeline
Sunbelt Securities, Inc.11$399<0.01%013F-HRTimeline
Global Retirement Partners, LLC11$399<0.01%-413F-HRTimeline
MAI Capital Management7$255<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.7$255<0.01%new13F-HRTimeline
SageView Advisory Group, LLC4$146<0.01%new13F-HRTimeline
Arax Advisory Partners4$145<0.01%-11113F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.3$109<0.01%-10113F-HRTimelineGroup
True Wealth Design, LLC3$109<0.01%013F-HRTimeline
Essential Partners LLC3$109<0.01%+113F-HRTimeline
Clearstead Advisors, LLC1$37<0.01%-2213F-HRTimeline
ROTHSCHILD INVESTMENT LLC1$36<0.01%new13F-HRTimeline
Keating Financial Advisory Services, In…1$36<0.01%13F-HRTimeline