Sionna Therapeutics, Inc. (SION) Insider Trading -- Recent Executive & Director Transactions

16 insiders reported 419 Form 4 transactions for Sionna Therapeutics, Inc. (SION) over the past 18 months (most recent 2026-07-09). Recent activity: Thompson Peter A. (Director) Sell 85,918 shares, OrbiMed Capital GP VIII LLC (Director) Sell 85,918 shares, ORBIMED ADVISORS LLC (Director) Sell 85,918 shares, Fitzpatrick Jennifer (Chief Legal Officer) Buy 10,250 shares, Fitzpatrick Jennifer (Chief Legal Officer) Sell 10,250 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
2026-07-09Thompson Peter A.DirectorSell85,918$3.9M
2026-07-09OrbiMed Capital GP VIII LLCDirectorSell85,918$3.9M
2026-07-09ORBIMED ADVISORS LLCDirectorSell85,918$3.9M
2026-07-07Fitzpatrick JenniferChief Legal OfficerBuy10,250$62,628
2026-07-07Fitzpatrick JenniferChief Legal OfficerSell10,250$446,862
2026-07-02ORBIMED ADVISORS LLCDirectorSell115,844$5.3M
2026-07-02Thompson Peter A.DirectorSell115,844$5.3M
2026-07-02OrbiMed Capital GP VIII LLCDirectorSell115,844$5.3M
2026-05-29ORBIMED ADVISORS LLCDirectorSell101$4,493
2026-05-29Thompson Peter A.DirectorSell101$4,493
2026-05-29OrbiMed Capital GP VIII LLCDirectorSell101$4,493
2026-05-11Thompson Peter A.DirectorSell48,546$2.2M
2026-05-11ORBIMED ADVISORS LLCDirectorSell48,546$2.2M
2026-05-11OrbiMed Capital GP VIII LLCDirectorSell48,546$2.2M
2026-05-11ORBIMED ADVISORS LLCDirectorSell59,767$2.7M
2026-05-11Thompson Peter A.DirectorSell59,767$2.7M
2026-05-11OrbiMed Capital GP VIII LLCDirectorSell59,767$2.7M
2026-05-11ORBIMED ADVISORS LLCDirectorSell184,639$8.5M
2026-05-11Thompson Peter A.DirectorSell184,639$8.5M
2026-05-11OrbiMed Capital GP VIII LLCDirectorSell184,639$8.5M
2026-04-21ORBIMED ADVISORS LLCDirectorSell52,397$2.3M
2026-04-21Thompson Peter A.DirectorSell52,397$2.3M
2026-04-21OrbiMed Capital GP VIII LLCDirectorSell52,397$2.3M
2026-04-21ORBIMED ADVISORS LLCDirectorSell2,948$131,245
2026-04-21Thompson Peter A.DirectorSell2,948$131,245

Source: SEC Form 4 filings · as of 2026-07-09