Midday Glance: Biotechnology companies By: CNBC.com News January 29, 2015 at 13:23 PM EST Amgen Inc. fell$. 11 or. 1 percent, to $154.54. Biogen Idec fell $4.05 or 1.2 percent, to $347.13. Celgene Corp. fell$. 57 or. 5 percent, to $118.40. Read More >> Related Stocks: Amgen Biogen Idec Celgene Corp Gilead Sciences