Sionna Therapeutics (SION) Institutional Ownership $12.76 -0.03 (-0.23%) As of 05/6/2025 04:00 PM Eastern Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesOwnershipSEC FilingsTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Sionna Therapeutics (NASDAQ:SION)Number ofInstitutional Buyers(last 12 months)1TotalInstitutional Inflows(last 12 months)$8.99MNumber ofInstitutional Sellers(last 12 months)0 Get SION Insider Trade Alerts Want to know when executives and insiders are buying or selling Sionna Therapeutics stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Sionna Therapeutics Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/5/2025 Jennison Associates LLC859,927$9.00M0.0%N/A1.949% (Data available from 1/1/2016 forward) SION Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of SION shares? During the previous two years, the following institutional investors and hedge funds held shares of Sionna Therapeutics shares: Jennison Associates LLC ($9.00M).Learn more on SION's institutional investors. Which institutional investors have been buying Sionna Therapeutics stock? The following institutional investors have purchased Sionna Therapeutics stock in the last 24 months: Jennison Associates LLC ($859.93K). How much institutional buying is happening at Sionna Therapeutics? Institutional investors have bought a total of 859,927 shares in the last 24 months. This purchase volume represents approximately $8.99M in transactions. Related Companies NAMS Major Shareholders MIRM Major Shareholders IBRX Major Shareholders CGON Major Shareholders BEAM Major Shareholders KNSA Major Shareholders BLTE Major Shareholders ARWR Major Shareholders VCEL Major Shareholders BHC Major Shareholders This page (NASDAQ:SION) was last updated on 5/7/2025 by MarketBeat.com Staff From Our Partners3..2..1.. AI 2.0 ignition (don’t sleep on this)I just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | SponsoredTrump to solve American wealth loss?Is President Trump’s Executive Order 14179… A secret way to restore wealth for good citizens? 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