Amgen To Acquire Five Prime Therapeutics For $1.9 Billion in Cash Acquisition Includes Bemarituzumab, A Phase 3 Ready, First-In-Class Program For Gastric Cancer, the Third Leading Cause of Cancer Mortality Worldwide Bemarituzumab is a Strong Strategic Fit With Amgen's Innovative Oncology Portfolio Amgen to Host Investor Call at 10:30 a.m. EST PR Newswire THOUSAND OAKS, Calif. and SOUTH SAN FRANCISCO, Calif., March 4, 2021 THOUSAND OAKS, Calif. and SOUTH SAN FRANCISCO, Calif. , March 4, 2021...