Sampdoria have signed Hungary international Zsolt Laczko, freeing Reto Ziegler for Milan, while Roma, Udinese and Lecce also make moves.
The Blucerchiati have officially signed Debrecen left-back Laczko, a Hungary international, for around €0.8m.
The 24-year-old's arrival effectively frees up Ziegler for his January transfer to Milan.
The Rossoneri have also made another purchase, buying out half of Albinoleffe midfielder Mattia Valoti.
In other transfer news, Roma have brought back Under-20 international striker Stefano Pettinari from his loan spell at Siena.
Udinese announced the signing of 21-year-old Swedish centre-back Joel Ekstrand from Helsingborgs, penning a contract that expires in June 2015.
Lecce have terminated the loan contract of Tore Reginiussen by mutual consent, so he returns to Schalke 04 six months early.