argenx is trading 4.25% lower at $790.00 after-hours, with no clear, confirmed catalyst identified.

  • The regular-session close was $825.03.
  • On October 8, argenx stopped its Phase 3 SjΓΆgren’s UNITY study for futility; Baird lowered its price target to $823 on October 9. Neither source directly attributed the after-hours move to that news.
  • Broader indices were higher. Intraday reporting was conflicting, and no verified after-hours volume information was available.