A test tube is seen in front of displayed Biogen logo in this illustration taken on, December 1, 2021.Biogen on Wednesday reported third-quarter revenue and adjusted earnings that topped expectations while raising its full-year profit guidance, as sales of its breakthrough Alzheimer's drug, Leqembi, and other new products gain traction. Biogen now expects full-year adjusted earnings to come in between $16.10 and $16.60 per share, up from a previous forecast of $15.75 to $16.25 per share. The biotech company ...