This text provides an extensive overview of Amgen Inc., an American multinational biopharmaceutical company. The information details Amgen's founding in 1980 as Applied Molecular Genetics and outlines its history, acquisitions, and corporate affairs, including philanthropic efforts and political lobbying. Crucially, the source lists numerous approved products such as Enbrel and Prolia, along with their respective uses and recent revenue figures. It also summarizes ongoing clinical programs and notes several legal issues, including a 2012 guilty plea for improper marketing and a recent jury ruling regarding anticompetitive practices. Finally, the text organizes this complex information using standard encyclopedia article formatting with multiple sections, tables, and references.