Ideaya Biosciences is trading 5% down at $34.50 after falling from the August 14 close of $36.30, with the catalyst unclear.

  • No clear company-specific announcement, earnings release, regulatory decision, or analyst action dated August 17, 2026, was identified.
  • Nasdaq futures are up 0.55%, while the broader market is modestly positive.
  • Additional disclosures or trading-volume information may clarify the move.