Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2021 |  | Yentl Van Genechten | DF |  | K Lierse SK | Lierse |
| 07/2021 | | Tobe Leysen | GK |  | KRC Genk U19 | KRC Genk U19 |
| 07/2021 | | Mike Penders | GK | | KRC Genk U19 | KRC Genk U19 |
| 07/2021 | | Brent Stevens | GK | | KRC Genk U19 | KRC Genk U19 |
| 07/2021 |  | Sam de Grand | DF | | KRC Genk U19 | KRC Genk U19 |
| 07/2021 | | Madi Monamay | DF |  | KRC Genk U15 | U15 |
| 07/2021 | | Jay-Dee Geusens | MF |  | KRC Genk | KRC Genk |
| 07/2021 | | Mika Godts | MF | | KRC Genk U19 | KRC Genk U19 |
| 07/2021 | | Raf Smekens | MF | | KRC Genk U19 | KRC Genk U19 |
| 07/2021 | | Maarten Swerts | MF |  | KRC Genk U17 | U17 |
| 07/2021 | | Kamiel Van De Perre | MF | | KRC Genk U19 | KRC Genk U19 |
| 07/2021 | | Adnane Abid | FW | | KRC Genk U19 | KRC Genk U19 |
| 07/2021 | | Deniz Arabaci | FW | | KRC Genk U19 | KRC Genk U19 |
| 07/2021 | | Sekou Diawara | FW | | KRC Genk | KRC Genk |
| 07/2021 |  | Kelvin John | FW | | KRC Genk | KRC Genk |
| 07/2021 | | Robbe De Backer | AT-C |  | Oud-Heverlee Leuven U16 | U16 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2022 | | Wout Coomans | DF |  | KVV THES Sport Tessenderlo | KVV THES Sport Tessenderlo |
| 09/2021 |  | Pierre Zebli | MF |  | AC Cattolica Calcio | Cattolica Calci |
| 08/2021 | | Jamil Takidine | MF |  | Roda JC Kerkrade | Roda JC |
| 07/2021 |  | Yannick Leliendal | DF |  | VVV-Venlo | VVV |