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

22 insiders reported 485 Form 4 transactions for Sionna Therapeutics, Inc. (SION) over the past 18 months (most recent 2026-07-07). Recent activity: Fitzpatrick Jennifer (Chief Legal Officer) Buy 10,250 shares, Fitzpatrick Jennifer (Chief Legal Officer) Sell 10,250 shares, ORBIMED ADVISORS LLC (Director) Sell 115,844 shares, Thompson Peter A. (Director) Sell 115,844 shares, OrbiMed Capital GP VIII LLC (Director) Sell 115,844 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
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
2026-05-11OrbiMed Capital GP VIII LLCDirectorSell59,767$2.7M
2026-05-11Thompson Peter A.DirectorSell48,546$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 ADVISORS LLCDirectorSell48,546$2.2M
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
2026-04-21OrbiMed Capital GP VIII LLCDirectorSell2,948$131,245
2026-04-16ORBIMED ADVISORS LLCDirectorSell47,814$2.1M
2026-04-16Thompson Peter A.DirectorSell47,814$2.1M

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