SYA Chart, page-39

Yes i have seen these trades across different sectors..I think,and correct me if im wrong ,when someone buys a parcel of shares,say 247,382, unless there is exactly that same amount from one seller,they are picked off seperate orders to make up transaction and as such you see unusually low numbers..it wasnt until i had made a trade for a parcel with similar numbers that i noticed in the buyers i couldnt find the exact amount i bought until i added up some of the lower figures..often wondered about this myself until i worked it out..it would cost more in the transaction than the value of the share...hope that helps