Sionna Therapeutics, Inc. (SION) — Insider Trading Activity

Sionna Therapeutics, Inc. (SION) has 506 insider transactions on record, including 28 open-market purchases and 410 sales by company executives and directors. The most recent transaction was filed on 2026-09-17 by Ra Capital Healthcare Fund LP. The largest single transaction was a sale of $ 21.58M by Ra Capital Healthcare Fund LP.