Sionna Therapeutics (SION) Institutional Ownership $13.08 +0.36 (+2.83%) As of 05/27/2025 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)15TotalInstitutional Inflows(last 12 months)$257.43MNumber 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 Skip Chart & View Institutional Buying and Selling Data SION Institutional Buying and Selling by Quarter Sionna Therapeutics Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/23/2025 Siren L.L.C.325,000$3.40M0.2%N/A0.737% 5/16/2025 Woodline Partners LP80,000$837K0.0%N/A0.181% 5/16/2025 Zimmer Partners LP237,500$2.48M0.0%N/A0.538% 5/16/2025 Goldman Sachs Group Inc.63,741$667K0.0%N/A0.144% 5/16/2025 Alyeska Investment Group L.P.186,222$1.95M0.0%N/A0.422% 5/15/2025 RA Capital Management L.P.10,445,322$109.26M1.8%N/A23.673% 5/15/2025 Baker BROS. Advisors LP400,000$4.18M0.1%N/A0.907% 5/15/2025 TPG GP A LLC6,684,962$69.93M1.4%N/A15.150% 5/15/2025 Driehaus Capital Management LLC328,889$3.44M0.0%N/A0.745% 5/15/2025 Siren L.L.C.325,000$3.40M0.2%N/A0.737% 5/14/2025 Atlas Venture Life Science Advisors LLC3,694,020$38.64M7.4%N/A8.372% 5/13/2025 Aberdeen Group plc745,964$7.80M0.0%N/A1.691% 5/9/2025 CenterBook Partners LP114,284$1.20M0.1%N/A0.259% 5/9/2025 Charles Schwab Investment Management Inc.64,644$676K0.0%N/A0.147% 5/7/2025 TD Asset Management Inc55,366$579K0.0%N/A0.125% 5/5/2025 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, 15 institutional investors and hedge funds held shares of Sionna Therapeutics. The most heavily invested institutionals were RA Capital Management L.P. ($109.26M), TPG GP A LLC ($69.93M), Atlas Venture Life Science Advisors LLC ($38.64M), Jennison Associates LLC ($9.00M), Aberdeen Group plc ($7.80M), Baker BROS. Advisors LP ($4.18M), and Driehaus Capital Management LLC ($3.44M).Learn more on SION's institutional investors. Which institutional investors have been buying Sionna Therapeutics stock? Of the 15 institutional investors that purchased Sionna Therapeutics stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: RA Capital Management L.P. ($10.45M), TPG GP A LLC ($6.68M), Atlas Venture Life Science Advisors LLC ($3.69M), Jennison Associates LLC ($859.93K), Aberdeen Group plc ($745.96K), Siren L.L.C. ($650K), and Baker BROS. Advisors LP ($400K). How much institutional buying is happening at Sionna Therapeutics? Institutional investors have bought a total of 24,610,841 shares in the last 24 months. This purchase volume represents approximately $257.43M in transactions. Related Companies AMRX Major Shareholders AAPG Major Shareholders MIRM Major Shareholders OGN Major Shareholders APLS Major Shareholders ARWR Major Shareholders VCEL Major Shareholders BLTE Major Shareholders NAMS Major Shareholders DNLI Major Shareholders This page (NASDAQ:SION) was last updated on 5/28/2025 by MarketBeat.com Staff From Our PartnersTrump Predicts Dollar DownfallREAD THIS VERY CAREFULLY: If you have $100,000 or more saved for retirement, this may make you VERY angry... ...Augusta Precious Metals | SponsoredJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. And it's one the Big Banks are alread...Premier Gold Co | SponsoredAI Meltdown Imminent: Dump These Stocks Now!If you have any money in the markets, especially in AI stocks… Please click here to see Elon Musk’s new inv...Paradigm Press | 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 | SponsoredF1 Engineering Powers This Electric Marine MotorThe future of marine propulsion has arrived - powered by F-1 grade engineering. In collaboration with McLar...The Tomorrow Investor | SponsoredThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredBanks aren’t ready for this altcoin—are you?While everyone's distracted by Bitcoin's moves, a stealth revolution is underway. One altcoin is quietly po...Crypto 101 Media | SponsoredTrump’s betrayal exposed Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Sionna Therapeutics, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Sionna Therapeutics With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Buy SION Stock Free SION Stock Alerts