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Zenas BioPharma (ZBIO) Institutional Ownership

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$29.63 -3.42 (-10.35%)
Closing price 04:00 PM Eastern
Extended Trading
$30.35 +0.72 (+2.43%)
As of 07:50 PM Eastern
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Institutional Ownership Changes (13F Filings) for Zenas BioPharma (NASDAQ:ZBIO)

Number of
Institutional Buyers
(last 12 months)
67
Total
Institutional Inflows
(last 12 months)
$353.89M
Number of
Institutional Sellers
(last 12 months)
14
Total
Institutional Outflows
(last 12 months)
$37.03M
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ZBIO Institutional Buying and Selling by Quarter

Zenas BioPharma Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026 Engineers Gate Manager LP12,980$329K0.0%N/A0.020%
9/9/2026 Squarepoint Ops LLC125,185$3.18M0.0%+192.0%0.192%
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC37,790$959K0.0%+143.4%0.058%
8/19/2026 Wellington Management Group LLP1,593,819$40.45M0.0%+27.9%2.445%
8/17/2026 Bank of America Corp DE1,231,159$31.25M0.0%N/A1.889%
8/15/2026 Jupiter Topco LLC7,900$201K0.0%N/A0.013%
8/15/2026 J. Goldman & Co LP68,232$1.73M0.0%N/A0.108%
8/14/2026 Legal & General Group Plc20,023$508K0.0%N/A0.032%
8/14/2026 The Manufacturers Life Insurance Company8,032$204K0.0%N/A0.013%
8/12/2026 Quantbot Technologies LP1,928$49K0.0%N/A0.003%
8/10/2026 DCF Advisers LLC28,184$715K0.1%N/A0.045%
8/7/2026 BlackRock Inc.2,686,225$68.18M0.0%N/A4.255%
8/7/2026 Deutsche Bank AG28,881$733K0.0%N/A0.046%
8/6/2026 Bank of New York Mellon Corp70,477$1.79M0.0%N/A0.112%
8/3/2026 Walleye Capital LLC209,050$5.31M0.0%N/A0.331%
5/19/2026 Bank of America Corp DE388,347$7.59M0.0%+723.5%0.615%
5/18/2026 Exome Asset Management LLC80,730$1.58M0.8%N/A0.128%
5/16/2026 Quantinno Capital Management LP21,126$413K0.0%N/A0.033%
5/14/2026 Sei Investments Co.12,386$242K0.0%N/A0.022%
5/14/2026 Walleye Capital LLC125,232$2.45M0.0%N/A0.218%
5/8/2026 PNC Financial Services Group Inc.4,767$93K0.0%-18.1%0.008%
5/7/2026 SEB Asset Management AB163,860$3.20M0.0%N/A0.286%
5/6/2026 Jennison Associates LLC250,000$4.89M0.0%N/A0.436%
5/5/2026 Bank of New York Mellon Corp60,864$1.19M0.0%+17.5%0.106%
4/24/2026 iA Global Asset Management Inc.215,830$4.22M0.1%N/A0.376%
2/19/2026 Invesco Ltd.187,968$6.83M0.0%+28.9%0.350%
2/18/2026 XTX Topco Ltd12,183$442K0.0%N/A0.023%
2/18/2026 VARCOV Co.7,335$266K0.1%N/A0.014%
2/18/2026 Voloridge Investment Management LLC133,439$4.85M0.0%N/A0.249%
2/18/2026 Virtus Investment Advisers LLC6,554$238K0.1%N/A0.012%
2/18/2026 Superstring Capital Management LP83,353$3.03M1.6%-13.8%0.155%
2/18/2026 Millennium Management LLC49,160$1.79M0.0%-31.6%0.092%
2/18/2026Janus Henderson Group PLC7,900$287K0.0%N/A0.015%
2/18/2026 EcoR1 Capital LLC789,500$28.67M1.3%N/A1.471%
2/18/2026 Eversept Partners LP121,016$4.39M0.2%-23.8%0.225%
2/18/2026 Balyasny Asset Management L.P.193,153$7.01M0.0%N/A0.360%
2/17/2026 Schonfeld Strategic Advisors LLC9,127$331K0.0%N/A0.017%
2/17/2026 AQR Capital Management LLC78,220$2.84M0.0%+218.2%0.146%
2/17/2026 NEA Management Company LLC3,523,219$127.93M6.5%+28.9%6.563%
2/17/2026 ArrowMark Colorado Holdings LLC751,161$27.28M0.6%-8.9%1.399%
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2/17/2026 Price T Rowe Associates Inc. MD369,248$13.41M0.0%-1.3%0.688%
2/17/2026 Rock Springs Capital Management LP502,077$18.23M0.9%-13.5%0.935%
2/17/2026 California State Teachers Retirement System15,701$570K0.0%+1,271.3%0.029%
2/17/2026 State of Wisconsin Investment Board10,221$371K0.0%N/A0.019%
2/17/2026 Polar Capital Holdings Plc1,057,609$38.40M0.1%N/A1.970%
2/16/2026 Squarepoint Ops LLC15,541$564K0.0%N/A0.029%
2/16/2026 Mariner LLC7,676$279K0.0%N/A0.014%
2/16/2026 NEXTBio Capital Management LP321,983$11.69M6.9%N/A0.600%
2/16/2026 Barclays PLC34,377$1.25M0.0%+50.3%0.064%
2/13/2026 Marshall Wace LLP7,100$258K0.0%N/A0.013%
2/13/2026 The Manufacturers Life Insurance Company 6,256$227K0.0%N/A0.012%
2/13/2026 Pivotal bioVenture Partners Investment Advisor LLC591,991$21.50M8.3%-24.0%1.103%
2/13/2026 Vivo Capital LLC853,495$30.99M2.0%-27.9%1.590%
2/13/2026 Schroder Investment Management Group50,636$1.85M0.0%-55.0%0.094%
2/13/2026 Charles Schwab Investment Management Inc.213,193$7.74M0.0%+19.5%0.397%
2/13/2026 State Street Corp438,294$15.91M0.0%+16.1%0.816%
2/13/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC8,400$305K0.0%N/A0.016%
2/13/2026 Wells Fargo & Company MN21,151$768K0.0%+69.8%0.039%
2/12/2026 SR One Capital Management LP5,037,854$182.92M25.9%+2.6%9.385%
2/12/2026 Federated Hermes Inc.2,715,578$98.60M0.2%+45.9%5.059%
2/12/2026 Skandinaviska Enskilda Banken AB publ 163,860$5.95M0.0%N/A0.305%
2/12/2026 Alps Advisors Inc.44,077$1.60M0.0%+119.9%0.082%
2/12/2026 Swiss National Bank31,600$1.15M0.0%N/A0.059%
2/12/2026 Nuveen LLC50,850$1.85M0.0%+147.8%0.095%
2/11/2026 Deutsche Bank AG12,781$464K0.0%+4.5%0.024%
2/11/2026 Los Angeles Capital Management LLC14,447$525K0.0%N/A0.027%
2/10/2026 Goldman Sachs Group Inc.130,698$4.75M0.0%N/A0.243%
2/10/2026 Intech Investment Management LLC8,863$322K0.0%N/A0.017%
2/9/2026 Geode Capital Management LLC588,393$21.37M0.0%+25.2%1.096%
2/6/2026 ProShare Advisors LLC5,820$211K0.0%N/A0.011%
1/29/2026 UBS Group AG69,495$2.52M0.0%+95.8%0.129%
1/29/2026Vanguard Group Inc.1,453,065$52.76M0.0%+25.0%2.707%
1/29/2026 China Universal Asset Management Co. Ltd.13,314$483K0.0%N/A0.025%
1/27/2026 GF Fund Management CO. LTD.1,054$38K0.0%N/A0.002%
1/26/2026 Mirae Asset Global Investments Co. Ltd.2,608$95K0.0%N/A0.005%
1/26/2026CWM LLC2,178$79K0.0%+48.3%0.004%
1/1/2026 JPMorgan Chase & Co.6,548$145K0.0%-14.7%0.012%
11/17/2025 Quarry LP1,134$25K0.0%+34.5%0.002%
11/17/2025 Millennium Management LLC71,850$1.60M0.0%N/A0.134%
11/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.7,461$166K0.0%-16.0%0.014%
11/17/2025 Bank of America Corp DE14,809$329K0.0%+5.8%0.028%
11/17/2025 ArrowMark Colorado Holdings LLC824,668$18.31M0.3%-24.6%1.536%
11/17/2025 Alliancebernstein L.P.18,350$407K0.0%+12.2%0.034%
11/14/2025 Creative Planning11,882$264K0.0%N/A0.022%
11/14/2025 Two Sigma Investments LP20,382$452K0.0%+3.9%0.048%
11/14/2025 Wellington Management Group LLP857,524$19.04M0.0%-2.4%2.036%
11/13/2025 Invesco Ltd.145,796$3.24M0.0%N/A0.346%
11/13/2025 UBS Group AG35,492$788K0.0%+46.3%0.084%
11/13/2025 BNP Paribas Financial Markets3,146$70K0.0%+120.0%0.007%
11/13/2025 Russell Investments Group Ltd.1,345$30K0.0%N/A0.003%
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11/13/2025 Schroder Investment Management Group112,612$2.32M0.0%-27.3%0.267%
11/7/2025Vanguard Group Inc.1,162,758$25.81M0.0%+17.2%2.761%
11/7/2025 JPMorgan Chase & Co.6,548$145K0.0%-14.7%0.016%
11/7/2025 PNC Financial Services Group Inc.5,843$130K0.0%-36.3%0.014%
11/6/2025 Rhumbline Advisers21,214$471K0.0%+7.6%0.050%
11/5/2025 Alps Advisors Inc.20,042$445K0.0%-11.1%0.048%
8/15/2025 Bank of America Corp DE13,991$136K0.0%+32.3%0.033%
8/14/2025 Sei Investments Co.12,142$118K0.0%N/A0.029%
8/14/2025 Federated Hermes Inc.1,861,838$18.04M0.0%+60.8%4.451%
8/13/2025 Schroder Investment Management Group154,916$1.48M0.0%-5.6%0.370%


ZBIO Institutional Ownership - Frequently Asked Questions

During the previous two years, 80 institutional investors and hedge funds held shares of Zenas BioPharma. The most heavily invested institutionals were SR One Capital Management LP ($182.92M), NEA Management Company LLC ($127.93M), Federated Hermes Inc. ($98.60M), BlackRock Inc. ($68.18M), Vanguard Group Inc. ($52.76M), Wellington Management Group LLP ($40.45M), and Polar Capital Holdings Plc ($38.40M).Learn more on Zenas BioPharma's institutional investors.

Of the 70 institutional investors that purchased Zenas BioPharma's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($2.69M), Bank of America Corp DE ($1.58M), Federated Hermes Inc. ($1.56M), Polar Capital Holdings Plc ($1.06M), NEA Management Company LLC ($789.50K), EcoR1 Capital LLC ($789.50K), and Vanguard Group Inc. ($460.85K).

Institutional investors have bought a total of 11,924,809 shares in the last 24 months. This purchase volume represents approximately $353.89M in transactions.

Of the 14 institutional investors that sold Zenas BioPharma's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: ArrowMark Colorado Holdings LLC ($343.18K), Vivo Capital LLC ($329.77K), Pivotal bioVenture Partners Investment Advisor LLC ($187.05K), Schroder Investment Management Group ($104.28K), Rock Springs Capital Management LP ($78.60K), Eversept Partners LP ($37.73K), and Millennium Management LLC ($22.69K).

Institutional investors have sold a total of 1,153,633 shares in the last 24 months. This volume of shares sold represents approximately $37.03M in transactions.



Institutional ownership data for NASDAQ:ZBIO is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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