Sionna Therapeutics (SION) Insider Trading & Ownership $19.14 -0.63 (-3.19%) As of 04:00 PM Eastern Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsTrendsBuy This Stock Sionna Therapeutics (NASDAQ:SION) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage3.90%Number OfInsiders Buying(Last 12 Months)1Amount OfInsider Buying(Last 12 Months)$950.40KNumber OfInsiders Selling(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 SION Insider Buying and Selling by Quarter Sionna Therapeutics Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails6/27/2025Tpg Gp A, LlcMajor ShareholderBuy60,000$15.84$950,400.00 (Data available from 1/1/2013 forward) SION Insider Trading Activity - Frequently Asked Questions Who is on Sionna Therapeutics' Insider Roster? The list of insiders at Sionna Therapeutics includes Tpg Gp A, Llc. Learn more on insiders at SION. What percentage of Sionna Therapeutics stock is owned by insiders? 3.90% of Sionna Therapeutics stock is owned by insiders. Learn more on SION's insider holdings. Which Sionna Therapeutics insiders have been buying company stock? The following insider purchased SION shares in the last 24 months: Tpg Gp A, Llc ($950,400.00). How much insider buying is happening at Sionna Therapeutics? Insiders have purchased a total of 60,000 SION shares in the last 24 months for a total of $950,400.00 bought. More Insider Trading Tools from MarketBeat Related Companies Immunovant Insider Transactions Crinetics Pharmaceuticals Insider Transactions Kymera Therapeutics Insider Transactions Ultragenyx Pharmaceutical Insider Transactions Arrowhead Pharmaceuticals Insider Transactions Mirum Pharmaceuticals Insider Transactions Catalyst Pharmaceuticals Insider Transactions Amneal Pharmaceuticals Insider Transactions Apellis Pharmaceuticals Insider Transactions Organon & Co. Insider Transactions Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles The Bottom Is in For These 3 Small-Cap Stocks Insiders Are Buying3 Catalysts Driving Plug Power’s Turnaround CaseInsider Selling Hits Market Leaders—Should You Be Worried?Insiders Spent Millions on These 3 Stocks Over the Past 2 Months3 Small Caps Drawing Insider and Institutional Support This page (NASDAQ:SION) was last updated on 7/24/2025 by MarketBeat.com Staff From Our PartnersElon Just Fired the IRS Agents Targeting Your SavingsElon Musk just fired 6,700 IRS agents — and exposed a war on your retirement. 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