23 January 2010 : Serie A Transfers Updated| Player | Position | From | To | Fee €m | |
| Paolo Zanetti | MF | Torino | Atalanta | Loan | |
| Castillo | FW | Fiorentina | Bari | u/d | |
| Busce' | MF | Reggina | Bologna | Free | |
| Modesto | MF | Genoa | Bologna | Loan | |
| Nserko | MF | Fiorentina | Bologna | Loan | |
| Ariaudo | DF | Juventus | Cagliari | Loan | |
| Bolatti | MF | Porto | Fiorentina | u/d | |
| Felipe | DF | Udinese | Fiorentina | Loan | |
| Ljajic | MF | Partizan Belgrade | Fiorentina | 8.00 | |
| Chinellato | FW | Fiorentina | Genoa | u/d | |
| Dainelli | DF | Fiorentina | Genoa | u/d | |
| Espositio | DF | Livorno | Genoa | Loan | |
| Frison | GK | Vicenza | Genoa | Loan | |
| Suazo | FW | Inter | Genoa | Loan | |
| Pandev | FW | Lazio | Inter | Free | |
| Candreva | MF | Livorno | Juventus | Loan | |
| Floccari | FW | Genoa | Lazio | Loan | |
| Bellucci | FW | Sampdoria | Livorno | Loan | |
| Bernardini | DF | Varese | Livorno | n/a 1 | |
| Dossena | DF | Liverpool | Napoli | 5.20 | |
| Balzaretti | DF | Contract Extension | Palermo | 2013 | |
| Elsneg | FW | Frosinone | Sampdoria | Loan | |
| Guberti | MF | Roma | Sampdoria | Loan | |
| Mario Cassano | GK | Reggina | Sampdoria | Loan | |
| Scepovic | FW | OFK Belgrade | Sampdoria | Loan | |
| Cribari | DF | Lazio | Siena | Loan | |
| Landgren | MF | Helsingborgs | Udinese | u/d | |
| 13.20 | |||||
| u/d = undisclosed | |||||
| 1 = joint-ownership | |||||