Shares of Amgen Inc. AMGN, +0.64% rose more than 3% in the extended session Monday after the drug maker reported an adjusted quarterly profit above Wall Street expectations and said sales rose in part due to COVID-19 products. Amgen said it earned $1.9 billion, or $3.36 a share, in the quarter, compared with $1.6 billion, or $2.76 a share, in the year-ago quarter.