I'm no rocket scientist but $MpIx filing the specifics of who received shares and how many makes me think that they need to show what the have before the take it back.
If my calculations are correct and they usually are, millions and millions of shorted shares out there. Having said that, it's going to work towards my benefit.
At some point they are going to have cut their losses and buy themselves out of the stock. The problem is for them is that as the PPS increases smaller blocks are for sale. Which means they have to buy numerous small blocks which equates on pps shooting up Very very fast. IMO