It is interesting to note that at this time, most of the sells at the Bid are for small lot shares like 10,000 shares or 5,000 shares.
The retailers are not selling, rather accumulating, and the O/S has been locked up 4 times over over the past two weeks.
The shorters won't be able to hold ATRN down much longer, just a little spark will send ATRN running right to back to .05 and beyond.