Bologna managed to beat Sampdoria and Fiorentina in the race for the 28-year-old midfielder.
Diamanti has been linked with a number of clubs, following Brescia’s relegation last season.
“Bologna FC 1909 is able to communicate that we have reached an agreement with Brescia Calcio for the transfer of Alessandro Diamanti on a co-ownership deal,” read a statement on the club’s official website.
