Sionna Therapeutics is trading at $5.15, up 5.10%, with no company-specific announcement identified to explain the October 12 pre-market move.

  • Its latest company news was an October 8 update on data presented at the North American Cystic Fibrosis Conference, covering previously disclosed analyses and plans for a future trial.
  • Supplied broad-market indicators were mixed, with no substantial same-direction move to explain the gain. No volume or trading-activity details were available.