Amgen stock heads into earnings week after ending Kyowa Kirin eczema pact
New York, Jan 31, 2026, 17:04 EST — Market closed. Amgen shares slipped roughly 0.3% to $341.88 on Friday, barely moving ahead of a busy week packed with catalysts. The biotech is set to unwind its partnership with Japan’s Kyowa Kirin. The near-term setup is crucial as Amgen reports earnings on Tuesday. Investors will focus on which projects the company…