I think some of these trades are just the MM's playing hot potato passing shares back and forth between their friends to show higher volume "sells". Notice the 650k and the 260K .032 print at 11:32 executed between bid and ask. When they can't encourage people to sell, their next objective is to discourage people from buying. The change in character in the bears, starting their raid early, is showing us their distress over an impending news catalyst.