In the latest trading session, Amgen (AMGN) closed at $294.76, marking a -1.17% move from the previous day. This change lagged the S&P 500's daily loss of 0.01%. Elsewhere, the Dow lost 0.32%, while the tech-heavy Nasdaq added 0.05%. The world's largest biotech drugmaker's shares have seen an increase of 2.98% over the last month, surpassing the Medical sector's loss of 1.59% and falling behind the S&P 500's gain of 5.37%.The investment community will be closely monitoring the performance of Amgen in its fo ...