Investors routinely write of their losses against their profits at the end of the year, and MM's routinely try to get a stagnant trade flowing.
Lakeshore trying to determine a person's actual loss is futile, since everyone has multiple entry points along the way. Few people accumulate a substantial position all at once.
Perhaps it's someone in the Class Action group who bought in March 2011. There are certainly members of that Class who haven't sold yet.
40 shares before the 25:1 split was 1000 shares. They could have paid $1.80 PPS for those in January 2011 but let's say $1 per share in March 2011 to keep it real. That person could be FINALLY selling now to take the $1000 loss.
I don't think a market maker would record a 40-share trade to create volume. Maybe to paint the tape, but the PPS was already at .0001, so, who knows.
Maybe the small sales was someone who foolishly thought Radient somehow had value and hung onto the shares. Someone could have spread a merger rumor. Too bad he didn't sell earlier.