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Disclosery

ZBIO ZENAS BIOPHARMA INC

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Stock (common), issuer CIK 1953926

137 managers (145 13F filers) reported a position in ZBIO shares at 2026-06-30, 61,267,129 shares in all. 27 filers opened a position and 22 filers sold out during the quarter.

Managers
137
13F filers
145
New
27
Added
62
Reduced
39
Sold out
22
Shares held by filers
61,267,129

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
FMR LLCin group FMR LLC9,506,701$241M0.01%+424,70113F-HRTimelineGroup
SR One Capital Management, LP5,037,854$128M12.31%013F-HRTimeline
NEA Management Company, LLC4,023,219$102M6.43%013F-HRTimeline
ENAVATE SCIENCES GP, LLC3,919,159$99.5M28.8%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.3,116,805$79.1M0.11%-10,22613F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.2,686,225$68.2M<0.01%+648,67713F-HRTimelineGroup
Capital International Investorsin group Capital International Investo…2,502,912$63.5M0.01%+68,91213F-HRTimelineGroup
Polar Capital Holdings Plcin group Polar Capital Holdings Plc2,412,772$61.2M0.17%-135,67213F-HRTimelineGroup
Royalty Pharma Sub-Manager, LLCin group Royalty Pharma Sub-Manager, L…2,388,150$60.6M25.05%013F-HR/ATimelineGroup
Fairmount Funds Management LLC2,359,025$59.9M3.96%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP2,055,100$52.2M<0.01%+584,17713F-HRTimelineGroup
VANGUARD GROUP INCgroup of 6 filers holding1,954,511$49.6M+242,641Timeline
NVP ASSOCIATES, LLC1,838,482$46.7M14.22%013F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…1,593,819$40.5M0.01%+347,76613F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,231,159$31.2M<0.01%+842,81213F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/1,226,928$31.1M<0.01%+869,66213F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC882,654$22.4M<0.01%+226,86913F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.1,103,388$21.6M0.01%+206,06713F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP815,150$20.7M0.02%+540,09413F-HRTimelineGroup
EcoR1 Capital, LLC789,500$20M0.99%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC660,470$16.8M0.01%+183,65213F-HRTimelineGroup
Woodline Partners LP590,539$15M0.05%+1413F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management576,717$14.6M0.03%-90,35313F-HRTimelineGroup
ArrowMark Colorado Holdings LLC573,318$14.6M0.61%-85,59113F-HRTimeline
SILVERARC CAPITAL MANAGEMENT, LLCin group SILVERARC CAPITAL MANAGEMENT,…509,789$12.9M1.44%-626,14613F-HRTimelineGroup
Rock Springs Capital Management LP502,077$12.7M0.62%013F-HRTimeline
Pivotal bioVenture Partners Investment …in group Pivotal bioVenture Partners I…490,766$12.5M4.05%-101,22513F-HRTimelineGroup
NEXTBio Capital Management LP426,736$10.8M4.98%013F-HRTimeline
Vestal Point Capital, LP365,000$9.26M0.22%+165,00013F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP323,442$8.21M0.01%-178,48613F-HRTimelineGroup
JENNISON ASSOCIATES LLC314,049$7.97M<0.01%+64,04913F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co302,085$7.67M<0.01%+77,68313F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP281,140$7.14M<0.01%+86,50013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC271,163$6.88M<0.01%-110,29813F-HRTimelineGroup
SPHERA FUNDS MANAGEMENT LTD.in group SPHERA FUNDS MANAGEMENT LTD.230,834$5.86M0.84%+16,50013F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding215,879$5.48M-167,049Timeline
iA Global Asset Management Inc.215,130$5.46M0.06%-70013F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC209,050$5.31M0.03%+83,81813F-HRTimelineGroup
Sio Capital Management, LLC208,557$5.29M0.91%-123,17313F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC195,780$4.97M<0.01%+128,91013F-HRTimelineGroup
Voleon Capital Management LP167,145$4.24M0.08%+137,53313F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS151,086$3.83M<0.01%+141,08713F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY134,979$3.43M<0.01%+41,58313F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC125,185$3.18M0.01%+82,31113F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC115,965$2.94M<0.01%+86,35513F-HRTimelineGroup
SEVEN GRAND MANAGERS, LLC100,000$2.54M0.1%013F-HRTimeline
Birchview Capital, LP93,601$2.38M1.11%+23,60113F-HRTimeline
Verition Fund Management LLC72,988$1.85M0.01%new13F-HR/ATimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp70,477$1.79M<0.01%+9,61313F-HRTimelineGroup
J. Goldman & Co LP68,232$1.73M0.06%+31,43513F-HRTimeline
CSM Advisors, LLC67,622$1.72M0.04%new13F-HRTimeline
Nuveen, LLCin group TIAA66,638$1.69M<0.01%-1,13213F-HRTimelineGroup
ALPS ADVISORS INC63,675$1.62M0.01%+19,98113F-HRTimeline
Swiss National Bank53,200$1.35M<0.01%+21,60013F-HRTimeline
Exome Asset Management LLC52,443$1.33M0.82%-28,28713F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC51,022$1.29M0.01%-8,97913F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC49,521$1.26M<0.01%+39,63313F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC48,465$1.23M<0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd40,034$1.02M0.01%+20,72313F-HRTimelineGroup
Burkehill Global Management, LP40,000$1.02M0.04%013F-HRTimeline
Rafferty Asset Management, LLC37,509$952K<0.01%-10,66013F-HRTimeline
Atom Investors LP37,149$943K0.08%-69,86713F-HRTimeline
RHUMBLINE ADVISERS34,245$869K<0.01%+7,43213F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC33,280$845K0.02%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC31,100$789K<0.01%-19,87113F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…29,471$748K<0.01%+13,65213F-HR/ATimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\28,881$733K<0.01%+9,61513F-HRTimelineGroup
DCF Advisers, LLC28,184$715K0.19%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD26,922$683K<0.01%+6,10813F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO24,445$661K<0.01%-66413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN25,995$660K<0.01%+17,11013F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding20,247$515K+3,061Timeline
Legal & General Group Plcin group Legal & General Group Plc20,023$508K<0.01%+9,59113F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.18,954$481K<0.01%-94,52513F-HRTimelineGroup
China Universal Asset Management Co., L…18,848$478K0.03%+5,32213F-HRTimeline
PROFUND ADVISORS LLC18,838$478K0.01%-2,57813F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP18,241$463K<0.01%+1813F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd17,332$440K0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…17,041$433K<0.01%+4,13213F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…16,525$419K0.1%+9,80813F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.16,136$410K<0.01%new13F-HRTimelineGroup
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …15,050$383K<0.01%new13F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…14,674$372K0.01%new13F-HRTimelineGroup
Engineers Gate Manager LP12,980$329K<0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…12,740$323K<0.01%+10,01913F-HRTimelineGroup
Creative Planningin group Creative Planning11,723$298K<0.01%-93513F-HRTimelineGroup
VARCOV Co.10,505$267K0.1%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND10,300$261K<0.01%+4,10013F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…9,053$230K<0.01%new13F-HRTimelineGroup
Scientech Research LLC9,028$229K0.19%-3,92413F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP8,874$225K<0.01%new13F-HRTimelineGroup
HRT FINANCIAL LP8,879$225K<0.01%-16,87013F-HRTimeline
Quantinno Capital Management LP8,581$218K<0.01%-12,54513F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…8,571$218K<0.01%new13F-HRTimelineGroup
SG Americas Securities, LLC8,442$214K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…8,418$214K<0.01%+2,05513F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …8,032$204K<0.01%new13F-HRTimelineGroup
Jupiter Topco LLCin group Janus Henderson7,900$201K<0.01%13F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…7,563$192K<0.01%+78613F-HRTimeline
KLP KAPITALFORVALTNING AS6,100$155K<0.01%+2,70013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,739$120K<0.01%-2813F-HRTimelineGroup
Ameritas Investment Partners, Inc.group of 2 filers holding2,628$66.7K+698Timeline
TOUNJIAN ADVISORY PARTNERS, LLC2,500$63.5K0.03%new13F-HRTimeline
Quantbot Technologies LP1,928$48.9K<0.01%+1,67213F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,286$32.6K<0.01%-5,94913F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.1,138$28.9K<0.01%-6713F-HRTimeline
SIGNATUREFD, LLC1,134$28.8K<0.01%+76413F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA847$21K<0.01%new13F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC651$16.5K<0.01%-1,76413F-HRTimeline
Pacer Advisors, Inc.626$16K<0.01%new13F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …539$13.7K<0.01%new13F-HRTimelineGroup
Silver Grove Financial Group, Inc.538$13.7K0.01%new13F-HRTimeline
Larson Financial Group LLC454$11.5K<0.01%+16113F-HRTimeline
Global Retirement Partners, LLC420$10.7K<0.01%13F-HRTimeline
HARBOUR INVESTMENTS, INC.370$9.39K<0.01%-1,00013F-HRTimeline
GROUP ONE TRADING LLC345$8.76K<0.01%+4513F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\304$7.72K<0.01%-69013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.295$7.49K<0.01%-38213F-HRTimelineGroup
J.Safra Asset Management Corp224$5.68K<0.01%-4613F-HRTimeline
GAMMA Investing LLC195$4.95K<0.01%-5013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…162$4.11K<0.01%+6413F-HRTimelineGroup
Integrated Wealth Concepts LLC138$3.5K<0.01%new13F-HRTimeline
Arax Advisory Partners104$2.64K<0.01%new13F-HRTimeline
Sterling Capital Management LLC100$2.54K<0.01%-67913F-HRTimeline
Bare Financial Services, Inc95$2.41K<0.01%+8113F-HRTimeline
Torren Management, LLC95$2.41K<0.01%013F-HRTimeline
Physician Wealth Advisors, Inc.67$1.7K<0.01%-2513F-HRTimeline
Covestor Ltd22$1K<0.01%+1613F-HRTimeline
Fortitude Family Office, LLC29$736<0.01%new13F-HRTimeline
Cornerstone Financial Management LLC26$660<0.01%013F-HR/ATimeline
ROTHSCHILD INVESTMENT LLC20$508<0.01%-113F-HRTimeline
CoreCap Advisors, LLC12$305<0.01%new13F-HRTimeline
Caitong International Asset Management …2$51<0.01%-5813F-HRTimeline
Essential Partners LLC2$51<0.01%013F-HRTimeline
Allworth Financial LP1$26<0.01%-2513F-HRTimeline
Freestone Grove Partners LP1$25<0.01%new13F-HRTimeline
Hughes Financial Services, LLC1$25<0.01%new13F-HRTimeline