Xencor is trading 6.26% higher at $26.50 before the October 21, 2026 market open, amid a reported 3.64% pre-market gain in the biotech sector.

  • Shares closed October 20 at $24.94, up 7.55%, marking a second strong session.
  • Investors may also be watching the October 25 presentation of XmAb819 Phase 1 data and the October 26 webcast, announced October 19.
  • No new October 21 company announcement surfaced in the search.