Amgen (AMGN) closed the latest trading day at $285.92, indicating a +1.6% change from the previous session's end. This move lagged the S&P 500's daily gain of 1.81%. At the same time, the Dow added 1.

Shares of Amgen Inc. AMGN rose 1.62% to $285.98 Friday, on what proved to be an all-around great trading session for the ...