SION Insider Activity

View recent SEC Form 4 insider transactions for SION, including purchases, sales, option exercises, and other insider filings.

DateInsiderTypeQuantityPriceTotal ValueShares Owned
Sep 17, 2026Cloonan MichaelGrant109,025$0.00$0.00656,368
Sep 17, 2026Fitzpatrick JenniferGrant28,132$0.00$0.0056,265
Sep 17, 2026Fitzpatrick JenniferGrant28,133$0.00$0.0028,133
Sep 17, 2026McKee CharlotteGrant50,000$0.00$0.0078,415
Sep 17, 2026Ridloff ElenaGrant47,268$0.00$0.00133,069
Sep 17, 2026Ridloff ElenaGrant47,269$0.00$0.0085,801
Jul 07, 2026Thompson Peter A.Sale85,918$44.86$3,854,281.482,469,959
Jul 06, 2026Fitzpatrick JenniferExercise10,250$6.11$62,627.5010,250
Jun 30, 2026ORBIMED ADVISORS LLCSale115,844$45.50$5,270,902.002,555,877
Jun 30, 2026Thompson Peter A.Sale115,844$45.50$5,270,902.002,555,877
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