8-K current report · filed May 12, 2026

RIGEL PHARMACEUTICALS INC (RIGL) 8-K Current Report: May 12, 2026

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RIGEL PHARMACEUTICALS INC (RIGL) filed an 8-K current report with the SEC on May 12, 2026 reporting Item 1.01 (Entry into a Material Definitive Agreement). Worldwide exclusive license gives Rigel development, manufacturing, and commercialization rights for approved breast-cancer drug VEPPANU.

RIGEL PHARMACEUTICALS INC 8-K event analysis

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Item 1.01 · Entry into a Material Definitive Agreement

  • Worldwide exclusive license gives Rigel development, manufacturing, and commercialization rights for approved breast-cancer drug VEPPANU
  • $70M upfront payment plus $15M after specified transition activities, creating near-term cash obligations
  • Up to $320M in regulatory and sales milestones, including $260M tied to net-sales thresholds
  • Tiered royalties in the mid-teens to mid-twenties, plus sublicense-revenue sharing, potentially limiting product economics
  • Rigel may reimburse up to $40M of Pfizer development costs; agreement awaits HSR antitrust clearance

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