Amgen (AMGN) stock: Winston Score and insider trades
Amgen is a large biotechnology company that makes medicines to treat serious diseases like cancer, heart disease, kidney disease, and bone loss. Its best-known drugs include Enbrel (for arthritis), Repatha (for high cholesterol), Prolia (for bone loss), and Otezla (for psoriasis). It sells mostly to hospitals, clinics, and specialty pharmacies, primarily in the United States and Europe. Amgen earns money by selling its branded drugs, which are protected by patents that prevent competitors from making copies for a period of time. The company generates roughly $33 billion in annual revenue and operates globally, with the U.S. accounting for the majority of sales. Its moat comes from the complexity of manufacturing biological drugs and its large portfolio of established medicines, though several key products face growing competition from biosimilars — cheaper copycat versions — which is the main risk to revenue growth going forward.
Winston Score: 68 out of 100, Good
A decent business — some strong pillars, some weaker.
- Quality: Exceptional (27/30)
- Growth: Exceptional (17/20)
- Cash Flow: Exceptional (10/10)
- Stability: Mixed (3/10)
- Valuation: Strong (7/10)
- Ownership: Weak (1/15)
Key Facts
Price: $432.49
Market Cap: $233.8B
Sector: Healthcare
Industry: Drug Manufacturers - General
Exchange: NASDAQ
Editorial rules set and reviewed by Felix Prehn, Economist and Editor. Figures are refreshed daily from Financial Modeling Prep and company filings; last refreshed 2026-10-16.


