Amgen (AMGN -0.7%) underperformed a little today after a U.S. appeals court gave a green light...

|About: Amgen Inc. (AMGN)|By:, SA News Editor

Amgen (AMGN -0.7%) underperformed a little today after a U.S. appeals court gave a green light to a securities class-action lawsuit accusing the company of failing to disclose safety information for two anemia drugs, and of promoting unauthorized uses of its products.