Biogen (NASDAQ:BIIB) reported quarterly earnings of $3.57 per share which beat the analyst consensus estimate of $3.01 by 18.6 percent. This is a 18.21 percent increase over earnings of $3.02 per share from the same period last year. The company reported quarterly sales of $2.478 billion which beat the analyst consensus estimate of $2.255 billion by 9.87 percent. This is a 1.93 percent increase over sales of $2.431 billion the same period last year.