We sold him for 11.5m eur, Turk.
They bought his half for 5.5m last summer and bought the remaining half for 6m this summer.
Have in mind that both Secco and Marotta sold Criscito (Secco the first 50% and Marotta the rest this summer). When both of them decided to sell him then it's possible that it was Criscito himself who didn't want to come back to Juve. Sure, the reason for that is probably the way we got rid of him back in 2007, but in any case there was probably little to be done by Marotta this summer than to sell the remaining half of a player who didn't want to come back to Juve.