It may be a sell, but there is the possibility that someone was putting in large buy orders at the bid. That would explain the price not crashing.
I have stated before that I often buy at the bid. When the stock trading is as dormant as Edig's, you are trading with the MMs, and they need movement to make money. That said, a million shares is a lot to be able to buy at bid.
It really makes no difference to me; Big bucks or bust!
GLTA,
imin