They will run the price UP (a little, from whatever level the work it down to) and then SHORT in advance of the PP that they participate in, to break the price below the PP level, then cover the short and be long at a price lower than the PP.  Because they know in advance that they've got an equity stake at a fixed price in the PP, they can safely both run the price up prior to the PP, and sell it down after the PP. 


The key is all the inside information they have thanks to orchestrating the PP, coupled with the $ to move these tiny little stocks whichever way the choose. 


This is standard operating procedure in the joke/insiders club known as the TSX/TSX-V..  Go ahead and check any the shareprice movement of any mining stock that's done a PP on the TSX or TSX-V, at any time.