1581, the reason I believe the AH trades are not a 'large seller' is because there are not many restricted shares left to be sold. Insiders own the majority of restricted shares and I highly doubt that they are the sellers.
The AH trades keep coming though, which leads me to believe it is just a newer form of MM manipulation. IMVHO, I believe the MMs have found themselves in a NS position they've never or rarely ever been in before, where the fundamentals are so undeniably attractive, that their NSS does little to create the hoped for sell-offs.
In this case, they could be expected to resort to new tactics, and AH trades could very easily be one of them, passing back and forth odd-priced quantities that don't really even exist, which would, in essence, be nothing new, since NS shares don't exist either, in the first place.