Senti Biosciences is trading at $0.45, up 33.14%, in after-hours trading amid biotech-sector optimism around AI-enabled drug discovery.

  • No new company-specific announcement or late-breaking catalyst was identified for September 23, 2026; recent press-release listings show no clearly matching post-close event.
  • The move came despite broader U.S. equity weakness, suggesting biotech-sector interest rather than broad-market sentiment.