Amgen, Inc. is a biotechnology company, which engages in the discovery, development, manufacture and marketing of human therapeutics. Its products include the following brands: Aranesp, BLINCYTO, Corlanor, ENBREL, EPOGEN, IMLYGIC, KYPROLIS, Neulasta, NEUPOGEN, Nplate, Parsabiv, Prolia, Repatha, Sensipar, Vectibix, and XGEVA. The company was founded by William K. Bowes, Jr., Franklin Pitcher Johnson, Jr., George B. Rathmann and Joseph Rubinfeld on April 8, 1980 and is headquartered in Thousand Oaks, CA.