Solid Biosciences is trading 6.56% up at $9.10 after closing at $8.54 on September 21, 2026; no verified company-specific catalyst has been identified.

  • No verified company-specific announcement, earnings release, FDA update, clinical-trial announcement, or September 22 analyst action was found.
  • The investor-relations page lists no releases dated September 21–22.
  • The move may reflect residual risk-on sentiment from September 21, but current index futures are mixed, so the catalyst remains unconfirmed.