Suphanburi Football Club (Thai Premier League): every transfer in and out, fees paid and earned, squad market value, €265k spent.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-09-01 | Player | Suphanburi Football Club | Kabin United | Free |
| 2025-09-01 | Player | TBC | Suphanburi Football Club | Free |
| 2025-08-28 | Player | Suphanburi Football Club | Uttaradit | Free |
| 2025-07-28 | Player | Suphanburi Football Club | Roi Et | Free |
| 2025-07-20 | Player | Suphanburi Football Club | Trat | Free |
| 2025-07-19 | Player | Suphanburi Football Club | Retired | Free |
| 2025-07-15 | Player | Suphanburi Football Club | Muang Trang United | Free |
| 2025-07-06 | Player | Suphanburi Football Club | Mahasarakham United | Free |
| 2025-07-05 | Pethay Promjan | Suphanburi Football Club | Sisaket United | Free |
| 2025-07-01 | Player | Suphanburi Football Club | TBC | Free |
| 2025-07-01 | Player | Suphanburi Football Club | TBC | Free |
| 2025-07-01 | Player | Suphanburi Football Club | TBC | Free |
| 2025-07-01 | Player | Suphanburi Football Club | TBC | Free |
| 2025-07-01 | Wongsathon Tamoputasiri | Suphanburi Football Club | TBC | Free |
| 2025-07-01 | Yuri Martins | Suphanburi Football Club | TBC | Free |
| 2025-07-01 | Pittawat Jeenthai | Suphanburi Football Club | PT Prachuap FC | Free |
| 2025-07-01 | Oege-Sietse van Lingen | Suphanburi Football Club | Chonburi FC | Free |
| 2025-01-17 | Player | Police Tero FC | Suphanburi Football Club | Free |
| 2025-01-03 | Player | Suphanburi Football Club | Mahasarakham United | Free |
| 2025-01-03 | Oege-Sietse van Lingen | F91 Dudelange | Suphanburi Football Club | Free |