Investors

List of the current and past investors into Onyx Pharmaceuticals Inc with their respective financial instruments.

Profile Country Phone Round
Alta Partners LP Venture capital firm based in San Francisco which invests primarily in biotechnology and life science companies. United States +1 (415) 362-4022 N/A
Amgen Inc United States +1 (805) 447-1000 Acquisition
Kleiner Perkins Caufield & Byers LLC (KPCB) Venture capital firm. United States +1 (650) 233-2750 N/A
Sequoia Capital Operations LLC (Sequoia) Venture capital firm. United States +1 (650) 854-3927 N/A
Sierra Ventures Management LLC Venture capital firm based in San Mateo, California. United States +1 (650) 854-1000 N/A