GKS Katowice U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-07-14 | Wojciech Pańkowski | GKS Katowice U19 | GKS Katowice II | — |
| 2024-08-01 | Wojciech Pańkowski | Stadion ŚCh Mdz | GKS Katowice U19 | Free |
| 2024-02-23 | Kacper Ćwielong | GKS Katowice U19 | GKS Katowice | — |
| 2023-07-01 | Łukasz Trepka | GKS Katowice U19 | GKS Katowice II | — |
| 2021-01-01 | Alan Bród | GKS Katowice U19 | GKS Katowice II | — |