yes, someone messed up and left a SELL order at MARKET. Somebody scored big time with paying $540 for $2520 worth of APDN. Someone else is now trying to figure out how they only got $540, when they expected about $2500. Lesson learned, I hope. Always shows, if you want to buy in about $.18, put in a darn bid for GOOD UNTIL CANCELLED. You never know, and someone could have snapped those same 12,000 shares at .18.