Zenas Biopharma (ZBIO) Institutional Ownership $10.83 -0.65 (-5.66%) As of 02:42 PM Eastern Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesOwnershipSEC FilingsTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Zenas Biopharma (NASDAQ:ZBIO)Number ofInstitutional Buyers(last 12 months)3TotalInstitutional Inflows(last 12 months)$646.95KNumber ofInstitutional Sellers(last 12 months)5TotalInstitutional Outflows(last 12 months)$2.49M 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. Email Address 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 CompanyDetails5/16/2025 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, the following institutional investors and hedge funds held shares of Zenas Biopharma shares: Wellington Management Group LLP ($6.90M), Charles Schwab Investment Management Inc. ($918K), Jefferies Financial Group Inc. ($348K), Nuveen LLC ($250K), Alps Advisors Inc. ($222K), Goldman Sachs Group Inc. ($189K), and Rhumbline Advisers ($91K).Learn more on ZBIO's institutional investors. Which institutional investors have been buying Zenas Biopharma stock? The following institutional investors have purchased Zenas Biopharma stock in the last 24 months: Jefferies Financial Group Inc. ($44.07K), Nuveen LLC ($31.63K), 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 81,893 shares in the last 24 months. This purchase volume represents approximately $646.95K in transactions. Which Zenas Biopharma 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 ($27.43K), Goldman Sachs Group Inc. ($18.22K), 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 681,628 shares in the last 24 months. This volume of shares sold represents approximately $2.49M in transactions. Related Companies MNKD Major Shareholders CLDX Major Shareholders DVAX Major Shareholders INVA Major Shareholders OPK Major Shareholders NVAX Major Shareholders GERN Major Shareholders RGLS Major Shareholders VSTM Major Shareholders MYGN Major Shareholders This page (NASDAQ:ZBIO) was last updated on 5/21/2025 by MarketBeat.com Staff From Our PartnersMarket 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 | SponsoredGold Hits New Highs as Global Markets SpiralWhen Trump took office in 2017, gold was just $1,100 an ounce. By the time he left, it had soared to $1,839. ...Premier Gold Co | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... 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