Zenas BioPharma (ZBIO) Institutional Ownership $12.43 +1.25 (+11.18%) As of 03:22 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)3TotalInstitutional Inflows(last 12 months)$646.95KNumber ofInstitutional Sellers(last 12 months)5TotalInstitutional Outflows(last 12 months)$2.85M 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 CompanyDetails6/27/2025Goldman 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% 5/14/2025Wellington Management Group LLP873,623$6.90M0.0%-23.0%2.088% 5/12/2025Nuveen LLC31,626$250K0.0%N/A0.076% 5/9/2025Charles 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% 5/1/2025New York State Common Retirement Fund6,200$49K0.0%N/A0.015% 4/30/2025Alps Advisors Inc.28,132$222K0.0%-16.7%0.067% 4/8/2025Rhumbline Advisers11,514$91K0.0%-70.4%0.028% 3/24/2025Wellington 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 Zenas BioPharma's institutional investors. Which institutional investors have been buying Zenas BioPharma's stock? The following institutional investors have purchased Zenas BioPharma's 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 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), 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 727,273 shares in the last 24 months. This volume of shares sold represents approximately $2.85M in transactions. 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