It has been about a month since the last earnings report for Biogen Inc. (BIIB) . Shares have added about 2.6% in that time frame, underperforming the S&P 500. Will the recent positive trend continue leading up to its next earnings release, or is Biogen Inc. due for a pullback? Before we dive into how investors and analysts have reacted as of late, let's take a quick look at its most recent earnings report in order to get a better handle on the important drivers. Q4 Earnings & Sales Miss Estimates Biogen’s ...