Why Is Regeneron (REGN) Down 4.1% Since Last Earnings Report?

It has been about a month since the last earnings report for Regeneron (REGN) . Shares have lost about 4.1% in that time frame, underperforming the S&P 500.Will the recent negative trend continue leading up to its next earnings release, or is Regeneron due for a breakout? 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. Regeneron Beats on Q4 Earnings, Initiates Quarterl ...