Sondrio (Serie D: Girone B): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-31 | Marcel Vasil | Sondrio | Taverne | Free |
| 2025-09-01 | Francesco Di Bartolo | Palermo FC | Sondrio | Loan |
| 2025-08-30 | Matheus Reis | Sondrio | ACR Messina | Free |
| 2025-08-18 | Matheus Reis | Locri 1909 | Sondrio | Free |
| 2025-07-18 | Akaki Gvineria | Tammeka | Sondrio | Free |
| 2025-07-13 | Player | Luparense | Sondrio | Free |
| 2025-07-03 | Player | Locri 1909 | Sondrio | Free |
| 2025-02-07 | Player | Atalanta U23 | Sondrio | Loan |
| 2025-01-15 | Artjoms Puzirevskis | Sondrio | Manfredonia | Free |
| 2025-01-01 | Artjoms Puzirevskis | Metta / LU | Sondrio | Free |
| 2024-07-30 | Martins Lormanis | Pisa U19 | Sondrio | Free |
| 2018-07-01 | Alessandro Coppola | Torino FC | Sondrio | Loan |