Amgen Inc. is investing $650 million to expand its U.S. manufacturing network, aiming to enhance production of new cancer therapies and create nearly 750 jobs. This growth comes as the biotechnology company faces a class-action lawsuit over a significant tax liability of $10.7 billion. Despite these challenges, Amgen has shown strong stock performance with a 6.1% year-to-date gain and recognition as one of the top large-cap value stocks to consider.