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Zenas BioPharma, Inc.

ZBIO
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001953926

No open-market purchases or sales by Zenas BioPharma, Inc. insiders were filed in the last 90 days; 144 institutions reported holding it in 13F filings for Q2 2026, worth $1.55B in total; no superinvestor holds it.

13F holders, Q4 2024

Institutional positions in Zenas BioPharma, Inc. as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
65
+21 vs. Q3 2024
Shares held
31.7M
+6.93M (+28.0%) vs. Q3 2024
Total value
$259.6M
−$158.9M (−38.0%) vs. Q3 2024
New holders
35
13 more added
Sold out
14
7 more reduced

Compare with Q3 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ZBIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2024: 65 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 44 institutionsQ4 2024: 65 institutionsQ1 2025: 67 institutionsQ2 2025: 73 institutionsQ3 2025: 80 institutionsQ4 2025: 119 institutionsQ1 2026: 140 institutionsQ2 2026: 144 institutions
Value heldQ4 2024: $259.6M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $418.5MQ4 2024: $259.6MQ1 2025: $256.7MQ2 2025: $330.0MQ3 2025: $774.5MQ4 2025: $1.55BQ1 2026: $1.14BQ2 2026: $1.55B
Institutions holding ZBIO and their total value by quarter
QuarterHoldersValue
Q2 2026144$1.55B
Q1 2026140$1.14B
Q4 2025119$1.55B
Q3 202580$774.5M
Q2 202573$330.0M
Q1 202567$256.7M
Q4 202465$259.6M
Q3 202444$418.5M
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q4 2024

Shares, value and share of portfolio for each institution holding Zenas BioPharma, Inc.; share changes are against Q3 2024.

Institutions holding ZBIO in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
SBI Securities Co., Ltd.2$160.00%+2New
MRP Capital Investments, LLC35$2870.00%00.0%Unchanged
R Squared Ltd210$1.72K0.00%+210New
Sterling Capital Management LLC226$1.85K0.00%+226New
Amalgamated Bank524$4.00K0.00%+524New
Royal Bank of Canada1,140$9.00K0.00%+1,140New
Tower Research Capital LLC (TRC)1,117$9.15K0.00%+1,117New
California State Teachers Retirement System1,144$9.37K0.00%+1,144New
Legal & General Group Plc1,519$12.4K0.00%+1,519New
Ameritas Investment Partners, Inc.1,608$13.2K0.00%+1,608New
STRS Ohio2,800$22.9K0.00%+2,800New
Police & Firemen's Retirement System of New Jersey4,499$36.8K0.00%+4,499New
The PNC Financial Services Group, Inc.6,417$52.6K0.00%+2,568+66.7%Added
Corebridge Financial, Inc.7,640$62.6K0.00%+7,640New
Wells Fargo & Company7,982$65.4K0.00%+7,982New
Mirae Asset Global ETFs Holdings Ltd.8,596$70.4K0.00%+8,596New
MetLife Investment Management10,225$83.7K0.00%+10,225New
Stoneridge Investment Partners LLC10,955$90.0K0.03%+10,955New
Citigroup Inc12,104$99.1K0.00%+12,104New
Birchview Capital, LP16,500$135.1K0.11%+16,500New
Two Sigma Investments, LP17,045$139.6K0.00%+4,045+31.1%Added
BNP Paribas Arbitrage, SA18,245$149.4K0.00%+18,245New
Nuveen Asset Management, LLC19,909$163.1K0.00%+19,909New
Bank of America Corp21,575$176.7K0.00%+21,575New
Deutsche Bank AG22,990$188.3K0.00%+22,990New
Barclays PLC23,939$196.1K0.00%+8,439+54.4%Added
JPMorgan Chase & Co29,839$244.4K0.00%+29,839New
Alps Advisors Inc33,790$276.7K0.00%+33,790New
Bank of New York Mellon Corp35,944$294.4K0.00%+35,944New
Renaissance Technologies LLC38,400$314.5K0.00%+38,400New
Rhumbline Advisers38,942$318.9K0.00%+38,942New
Goldman Sachs Group Inc42,174$345.4K0.00%−90,226−68.1%Reduced
Gsa Capital Partners LLP56,039$459.0K0.03%+56,039New
M&T Bank Corp62,622$512.4K0.00%+37,738+151.7%Added
Norges Bank66,202$542.2K0.00%−8,798−11.7%Reduced
Citadel Advisors LLC82,624$676.7K0.00%−11,698−12.4%Reduced
Superstring Capital Management LP111,605$914.0K0.80%00.0%Unchanged
Charles Schwab Investment Management Inc118,660$971.8K0.00%+118,660New
Northern Trust Corp124,246$1.02M0.00%+124,246New
UBS Group AG131,665$1.08M0.00%+131,606+223,061.0%Added
Millennium Management LLC134,896$1.10M0.00%+17,515+14.9%Added
Eversept Partners, LP172,103$1.41M0.15%−18,428−9.7%Reduced
Catalio Capital Management, LP187,184$1.53M0.34%+187,184New
Schroder Investment Management Group171,940$1.55M0.00%+171,940New
State Street Corp211,506$1.73M0.00%+211,506New
Geode Capital Management, LLC348,760$2.86M0.00%+323,903+1,303.1%Added
Morgan Stanley358,212$2.93M0.00%+307,162+601.7%Added
Price T Rowe Associates Inc511,220$4.19M0.00%+24,366+5.0%Added
ArrowMark Colorado Holdings LLC627,669$5.14M0.07%+327,669+109.2%Added
Pivotal bioVenture Partners Investment Advisor LLC736,645$6.03M4.07%+85,950+13.2%Added
Perceptive Advisors LLC744,035$6.09M0.17%−400,000−35.0%Reduced
Rock Springs Capital Management LP878,667$7.20M0.27%00.0%Unchanged
Vanguard Group Inc979,323$8.02M0.00%+829,323+552.9%Added
BlackRock, Inc.1,006,558$8.24M0.00%+1,006,558New
Wellington Management Group LLP1,135,289$9.17M0.00%−366,139−24.4%Reduced
Federated Hermes, Inc.1,158,000$9.48M0.02%00.0%Unchanged
Vivo Capital, LLC1,183,260$9.69M1.09%00.0%Unchanged
Deerfield Management Company, L.P. (Series C)1,562,942$12.8M0.24%00.0%Unchanged
Novo Holdings A/S1,600,000$13.1M0.79%+450,000+39.1%Added
FMR LLC1,781,715$14.6M0.00%−218,285−10.9%Reduced
NVP Associates, LLC1,838,482$15.1M8.05%00.0%Unchanged
Fairmount Funds Management LLC1,892,806$15.5M1.54%00.0%Unchanged
NEA Management Company, LLC2,613,948$21.4M1.21%00.0%Unchanged
Enavate Sciences GP, LLC3,761,359$30.8M22.12%+3,761,359New
Sr One Capital Management, LP4,911,539$40.2M9.81%00.0%Unchanged
Monashee Investment Management LLC0$00.00%−150,000−100.0%Sold out
Standard Life Aberdeen plc0$00.00%−75,100−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−57,600−100.0%Sold out
Soros Fund Management LLCSuperinvestorSoros Fund Management0$00.00%−37,500−100.0%Sold out
Squarepoint Ops LLC0$00.00%−32,299−100.0%Sold out
Maven Securities LTD0$00.00%−31,054−100.0%Sold out
Teachers Retirement System of the State of Kentucky0$00.00%−27,880−100.0%Sold out
Point72 (DIFC) Ltd0$00.00%−26,129−100.0%Sold out
HRT Financial LP0$00.00%−15,463−100.0%Sold out
Point72 Asia (Singapore) Pte. Ltd.0$00.00%−13,529−100.0%Sold out
Capula Management Ltd0$00.00%−10,615−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−10,074−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−3,762−100.0%Sold out
Aster Capital Management (DIFC) Ltd0$00.00%−3,018−100.0%Sold out