I'm in for a short term gamble on the basis of that massive chunk but I agree with makattack on that last point. It is entirely possible that the 100 million buyer at 0.5 cent has already fed most of it back out at 0.6 cent for 20% return on that sold. Do enough that way and he could dump the rest at market and still make money.
Hoping for a bit of a run but realistically ready to quit quickly.