8-K current report · filed Mar 4, 2026

Xencor Inc (XNCR) 8-K Current Report: March 4, 2026

Item 7.01XNCR overview

Short answer

Xencor Inc (XNCR) filed an 8-K current report with the SEC on March 4, 2026 reporting Item 7.01 (Regulation FD Disclosure). Alexion (AstraZeneca sub) unilaterally stopped U.S. royalty payments on Ultomiris®, disputing obligation under existing license agreement.

Xencor Inc 8-K event analysis

AI summary of each reported item and its exhibits

Item 7.01 · Regulation FD Disclosure

  • Alexion (AstraZeneca sub) unilaterally stopped U.S. royalty payments on Ultomiris®, disputing obligation under existing license agreement
  • At risk: $100–$120M in aggregate royalties Xencor expected to receive through 2028 on U.S. Ultomiris sales
  • Alexion will continue paying ex-U.S. royalties, limiting but not eliminating ongoing royalty stream
  • Xencor disputes Alexion's position and is "evaluating options": signals potential litigation over patent/license rights
  • Cash guidance $380M–$400M by end of 2026, with runway into mid-2028, suggesting dispute doesn't threaten near-term solvency

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