Zenas BioPharma (ZBIO) Institutional Ownership $17.52 +1.52 (+9.50%) As of 09/2/2025 04:00 PM Eastern Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesOwnershipSEC FilingsTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Zenas BioPharma (NASDAQ:ZBIO)Number ofInstitutional Buyers(last 12 months)10TotalInstitutional Inflows(last 12 months)$7.90MNumber ofInstitutional Sellers(last 12 months)6TotalInstitutional Outflows(last 12 months)$2.94M Get ZBIO Insider Trade Alerts Want to know when executives and insiders are buying or selling Zenas BioPharma stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. 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Skip Chart & View Institutional Buying and Selling Data ZBIO Institutional Buying and Selling by Quarter Zenas BioPharma Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/15/2025 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% 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% 6/27/2025 Goldman Sachs Group Inc.23,957$189K0.0%-43.2%0.057% 5/29/2025 Rhumbline Advisers11,514$91K0.0%-70.4%0.028% 5/16/2025 Goldman Sachs Group Inc.23,957$189K0.0%-43.2%0.057% 5/14/2025 Wellington Management Group LLP873,623$6.90M0.0%-23.0%2.088% 5/12/2025 Nuveen LLC31,626$250K0.0%N/A0.076% 5/9/2025 Charles Schwab Investment Management Inc.116,140$918K0.0%-2.1%0.278% 5/8/2025Jefferies Financial Group Inc.44,067$348K0.0%N/A0.105% 5/1/2025 New York State Common Retirement Fund6,200$49K0.0%N/A0.015% 4/30/2025 Alps Advisors Inc.28,132$222K0.0%-16.7%0.067% 4/8/2025 Rhumbline Advisers11,514$91K0.0%-70.4%0.028% 3/24/2025 Wellington Management Group LLP1,135,289$9.17M0.0%-24.4%2.716% (Data available from 1/1/2016 forward) ZBIO Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of ZBIO shares? During the previous two years, 15 institutional investors and hedge funds held shares of Zenas BioPharma. The most heavily invested institutionals were Federated Hermes Inc. ($18.04M), Wellington Management Group LLP ($6.90M), Geode Capital Management LLC ($3.62M), Schroder Investment Management Group ($1.48M), Charles Schwab Investment Management Inc. ($918K), Jefferies Financial Group Inc. ($348K), and Nuveen LLC ($250K).Learn more on Zenas BioPharma's institutional investors. Which institutional investors have been buying Zenas BioPharma's stock? Of the 10 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: Federated Hermes Inc. ($703.84K), Jefferies Financial Group Inc. ($44.07K), Nuveen LLC ($31.63K), Geode Capital Management LLC ($16.46K), Sei Investments Co. ($12.14K), Rhumbline Advisers ($8.21K), and New York State Common Retirement Fund ($6.20K). How much institutional buying is happening at Zenas BioPharma? Institutional investors have bought a total of 830,239 shares in the last 24 months. This purchase volume represents approximately $7.90M in transactions. Which of Zenas BioPharma's major shareholders have been selling company stock? The following institutional investors have sold Zenas BioPharma stock in the last 24 months: Wellington Management Group LLP ($627.81K), Rhumbline Advisers ($54.86K), Goldman Sachs Group Inc. ($36.43K), Schroder Investment Management Group ($9.12K), Alps Advisors Inc. ($5.66K), and Charles Schwab Investment Management Inc. ($2.52K). How much institutional selling is happening at Zenas BioPharma? Institutional investors have sold a total of 736,392 shares in the last 24 months. This volume of shares sold represents approximately $2.94M in transactions. Related Companies FOLD Major Shareholders BCRX Major Shareholders CLDX Major Shareholders INVA Major Shareholders NVAX Major Shareholders DVAX Major Shareholders MNKD Major Shareholders OPK Major Shareholders GERN Major Shareholders RIGL Major Shareholders This page (NASDAQ:ZBIO) was last updated on 9/3/2025 by MarketBeat.com Staff From Our PartnersHow “Trump’s New Dollar” Could Impact Your WealthPresident Trump just signed a game-changing law… That could soon upgrade the U.S. dollar in your checking a...Brownstone Research | SponsoredForget Tesla — This Tiny AI Stock Is Musk’s Real PlayWhile Wall Street focused on Tesla’s earnings, Elon Musk was quietly building a supercomputer so powerful it c...Behind the Markets | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredWhat Steve Bannon revealed about Trump’s gold playA Trump advisor just said 3 words that could reset the dollar. 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