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Zenas BioPharma (ZBIO) Institutional Ownership

Zenas BioPharma logo
$29.91 +0.71 (+2.43%)
As of 02:34 PM Eastern
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Institutional Ownership Changes (13F Filings) for Zenas BioPharma (NASDAQ:ZBIO)

Number of
Institutional Buyers
(last 12 months)
63
Total
Institutional Inflows
(last 12 months)
$308.93M
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

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/14/2026Legal & General Group Plc20,023$508K0.0%N/A0.032%
8/14/2026The Manufacturers Life Insurance Company 8,032$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%
5/19/2026Bank of America Corp DE388,347$7.59M0.0%+723.5%0.615%
5/18/2026Exome Asset Management LLC80,730$1.58M0.8%N/A0.128%
5/16/2026Quantinno Capital Management LP21,126$413K0.0%N/A0.033%
5/14/2026Sei 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%
2/19/2026Invesco Ltd.187,968$6.83M0.0%+28.9%0.350%
2/18/2026XTX Topco Ltd12,183$442K0.0%N/A0.023%
2/18/2026VARCOV Co.7,335$266K0.1%N/A0.014%
2/18/2026Voloridge Investment Management LLC133,439$4.85M0.0%N/A0.249%
2/18/2026 Virtus Investment Advisers LLC6,554$238K0.1%N/A0.012%
2/18/2026Superstring Capital Management LP83,353$3.03M1.6%-13.8%0.155%
2/18/2026Millennium Management LLC49,160$1.79M0.0%-31.6%0.092%
2/18/2026Janus Henderson Group PLC7,900$287K0.0%N/A0.015%
2/18/2026EcoR1 Capital LLC789,500$28.67M1.3%N/A1.471%
2/18/2026Eversept Partners LP121,016$4.39M0.2%-23.8%0.225%
2/18/2026Balyasny Asset Management L.P.193,153$7.01M0.0%N/A0.360%
2/17/2026Schonfeld Strategic Advisors LLC9,127$331K0.0%N/A0.017%
2/17/2026AQR Capital Management LLC78,220$2.84M0.0%+218.2%0.146%
2/17/2026NEA Management Company LLC3,523,219$127.93M6.5%+28.9%6.563%
2/17/2026ArrowMark Colorado Holdings LLC751,161$27.28M0.6%-8.9%1.399%
2/17/2026Price T Rowe Associates Inc. MD369,248$13.41M0.0%-1.3%0.688%
2/17/2026Rock Springs Capital Management LP502,077$18.23M0.9%-13.5%0.935%
2/17/2026California State Teachers Retirement System15,701$570K0.0%+1,271.3%0.029%
2/17/2026State of Wisconsin Investment Board10,221$371K0.0%N/A0.019%
2/17/2026Polar Capital Holdings Plc1,057,609$38.40M0.1%N/A1.970%
2/16/2026Squarepoint Ops LLC15,541$564K0.0%N/A0.029%
2/16/2026Mariner LLC7,676$279K0.0%N/A0.014%
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2/16/2026NEXTBio Capital Management LP321,983$11.69M6.9%N/A0.600%
2/16/2026Barclays PLC34,377$1.25M0.0%+50.3%0.064%
2/13/2026Marshall Wace LLP7,100$258K0.0%N/A0.013%
2/13/2026The Manufacturers Life Insurance Company 6,256$227K0.0%N/A0.012%
2/13/2026Pivotal bioVenture Partners Investment Advisor LLC591,991$21.50M8.3%-24.0%1.103%
2/13/2026Vivo Capital LLC853,495$30.99M2.0%-27.9%1.590%
2/13/2026Schroder Investment Management Group50,636$1.85M0.0%-55.0%0.094%
2/13/2026Charles 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%
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC8,400$305K0.0%N/A0.016%
2/13/2026Wells 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%
2/11/2026Los Angeles Capital Management LLC14,447$525K0.0%N/A0.027%
2/10/2026Goldman 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%
1/29/2026UBS 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%
11/17/2025Quarry LP1,134$25K0.0%+34.5%0.002%
11/17/2025Millennium Management LLC71,850$1.60M0.0%N/A0.134%
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.7,461$166K0.0%-16.0%0.014%
11/17/2025Bank of America Corp DE14,809$329K0.0%+5.8%0.028%
11/17/2025ArrowMark Colorado Holdings LLC824,668$18.31M0.3%-24.6%1.536%
11/17/2025Alliancebernstein L.P.18,350$407K0.0%+12.2%0.034%
11/14/2025Creative Planning11,882$264K0.0%N/A0.022%
11/14/2025Two Sigma Investments LP20,382$452K0.0%+3.9%0.048%
11/14/2025Wellington Management Group LLP857,524$19.04M0.0%-2.4%2.036%
11/13/2025Invesco Ltd.145,796$3.24M0.0%N/A0.346%
11/13/2025UBS Group AG35,492$788K0.0%+46.3%0.084%
11/13/2025BNP Paribas Financial Markets3,146$70K0.0%+120.0%0.007%
11/13/2025 Russell Investments Group Ltd.1,345$30K0.0%N/A0.003%
11/13/2025Schroder 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%
8/15/2025Bank of America Corp DE13,991$136K0.0%+32.3%0.033%
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8/14/2025Sei 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%
8/13/2025Schroder Investment Management Group154,916$1.48M0.0%-5.6%0.370%
8/12/2025 Rhumbline Advisers19,721$191K0.0%+71.3%0.047%
8/8/2025 Intech Investment Management LLC13,206$128K0.0%+13.9%0.032%
8/8/2025 Geode Capital Management LLC373,617$3.62M0.0%+4.6%0.893%
8/8/2025 PNC Financial Services Group Inc.9,179$89K0.0%+41.2%0.022%
6/27/2025Goldman Sachs Group Inc.23,957$189K0.0%-43.2%0.057%
5/29/2025Rhumbline Advisers11,514$91K0.0%-70.4%0.028%
5/16/2025Goldman Sachs Group Inc.23,957$189K0.0%-43.2%0.057%


ZBIO Institutional Ownership - Frequently Asked Questions

During the previous two years, 76 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), Polar Capital Holdings Plc ($38.40M), and Vivo Capital LLC ($30.99M).Learn more on Zenas BioPharma's institutional investors.

Of the 65 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), Federated Hermes Inc. ($1.56M), Polar Capital Holdings Plc ($1.06M), NEA Management Company LLC ($789.50K), EcoR1 Capital LLC ($789.50K), Vanguard Group Inc. ($460.85K), and Bank of America Corp DE ($345.42K).

Institutional investors have bought a total of 10,127,551 shares in the last 24 months. This purchase volume represents approximately $308.22M 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.


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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 8/14/2026. New 13F filings are added each quarter as they're published.
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