9L
A crossed trade simply shows that the same broker acted for the both the buyer and the seller, not that the buyer and the seller were the same entity. It tells you nothing of potential manipulation.
So in this case, assume numerous buy orders at 15.5c and 16c were from Comsec accounts, and the 2.5mil seller was through Comsec, then all the Comsec buyers that were sold to would show as a crossed trade (XT).
Cheers