it's probably an accumulation tactic. a trader already has a few shares & wants more, so they tap the bid hoping to entice weak hands into seling into their bid.
when it works -- redistribution of wealth. lol ;-)
Actually airdale a good portion of what you pasted was my buy order of 182,857 being broken up and filled.
Looks like I bought at the high of the day. Oh well, if the MMs want t keep dropping the price I guess I will just have to remove millions more from the float over the next couple of months :)