My belief is that it is due to sellers who bought on Friday (or before) and are taking profits before the impact of the earnings release slated for later today.
I definitely agree that the drop in share price is very uncharacteristic and that external forces are active. PPHM's proven tech and outstanding reputation is being held down by the BIG guys. Yes, they want to kill it or own it through a decade(s) long aqusition strategy. PPHM just has too much value to be valuable. I am guessing more stockholders than I can see it that way. Definitely a huge buying opportunity, here. My recommendation is to buy buy buy! Please do your own due diligence before buying, though.