Quite probably then it was the other investment houses (who well knew the details of PNP's predicament) that used the opportunity presented by the lack of POET news to short POET and dislodge as many POET shares as possible out of PNP's possession. And knowing that in doing so, it would become a self-reinforcing (sell-reinforcing!) feedback loop. A perfect storm for this tactic, when coupled with the simultaneous warrant exercisings.

Gordon Gecko would be proud...