I noticed in ANR on 2008.05.23, 500,000 shares went through after hours at 73.27, and today (2008.05.28) 596,300 went through after hours at 79.61 (there were smaller trades too but I ignore them for this question). What does this mean? Is this specialists or market makers cleaning up after the days trading? Big interests dumping? If so, to whom (who is buying in large quantities after hours)? It seems likely there is some significance to this (596,300 shares out of 6,720,500 is 8.9% in one shot so not insignificant) but I haven't been able to figure it out yet. Thanks for any replies.