Zenas Biopharma (ZBIO) Institutional Ownership $8.17 +0.14 (+1.74%) As of 04:00 PM Eastern Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsFinancialsOwnershipSEC FilingsTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Zenas Biopharma (NASDAQ:ZBIO)Number ofInstitutional Buyers(last 12 months)0Number ofInstitutional Sellers(last 12 months)1 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 Remove Ads Zenas Biopharma Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails3/24/2025 Wellington Management Group LLP1,135,289$9.17M0.0%-24.4%2.716% (Data available from 1/1/2016 forward)Remove Ads 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 ($9.17M).Learn more on ZBIO's institutional investors. 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 ($366.14K). How much institutional selling is happening at Zenas Biopharma? Institutional investors have sold a total of 366,139 shares in the last 24 months. This volume of shares sold represents approximately $0.00 in transactions. Related Companies AMGN Major Shareholders GILD Major Shareholders VRTX Major Shareholders REGN Major Shareholders ALNY Major Shareholders BIIB Major Shareholders UTHR Major Shareholders BMRN Major Shareholders INCY Major Shareholders NBIX Major Shareholders This page (NASDAQ:ZBIO) was last updated on 3/28/2025 by MarketBeat.com Staff From Our PartnersElon Warns: Exec Order 14024 Targets DollarExecutive Order 14024 is paving the way for irreversible damage to the dollar's value—threatening your wealth,...Priority Gold | SponsoredElon Musk is helping print “new gold”MIT scientists just developed a brand-new metal… A metal that’s shaping up to be, not only the biggest brea...True Market Insiders | SponsoredA market crash is coming—here’s whenThe stock market cycle I've used to identify the most likely day of the next market crash is the exact same in...Chaikin Analytics | SponsoredTrump’s Treasure Map [Pic inside]We were shown this map by former Presidential Advisor, Jim Rickards, one of the most politically connected men...Paradigm Press | SponsoredDo this Before Elon's Reveal on April 23rdElon’s newest tech could pay you an extra $30,000 a year — while you sleep. 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