Rigel Pharmaceuticals Inc.
Biotechnology ResearchCalifornia, United States201-500 Employees
Rigel Pharmaceuticals, Inc. is a biotechnology company headquartered in South San Francisco, California, focused on discovering, developing, and providing novel small molecule drugs for hematologic disorders and cancer. It operates in the biotechnology research industry and employs between 201 and 500 people. The company has pursued strategic collaborations for its pipeline, including an exclusive global license with Arvinas and Pfizer for Veppanu (vepdegestrant), a PROTAC therapeutic candidate. Rigel previously partnered with Eli Lilly on ocadusertib, a RIPK1 inhibitor, but that license and collaboration ended in 2021. In 2025, Rigel added Dr. Mark J. Frohlich to its board of directors, reflecting governance changes. In 2025 the company announced a development agreement with Kissei to develop Rezlidhia in Asia, with potential future payments up to $152 million.