This stock will go higher in less than couple of weeks, today it is dropping on low volume because short term traders who jumped in over the last 2 weeks hoping that it will be a quick trade are exiting. Once they all exit today and probably tomorrow, the stock will resume an uptrend, it will gain more momentum when people who are short recognize it hit a bottom and they may loose the opportunity to cover.
You can be very confident we will be above $6 by Thanksgiving or maybe sooner.
The Roche deal is substantial and should not be underestimated, and will protect the share price from dropping beyond a very short period.
No company who signs a deal with a $250 Billion giant like Roche will drop.