Transfers
Recent player movements in and out of the squad
| Date | Player | From | To | Type |
|---|---|---|---|---|
| 11.08.2022 | V. Boniface | Bodo/Glimt | Union St. Gilloise | N/A |
| 02.08.2022 | L. Paolucci | Union St. Gilloise | — | N/A |
| 30.07.2022 | O. El Azzouzi | — | Union St. Gilloise | N/A |
| 30.07.2022 | G. Nilsson | — | Union St. Gilloise | N/A |
| 17.07.2022 | C. Nielsen | Union St. Gilloise | Club Brugge KV | N/A |
| 12.07.2022 | T. Herbots | Union St. Gilloise | — | Free |
| 04.07.2022 | S. Adingra | Brighton | Union St. Gilloise | Loan |
| 01.07.2022 | D. Undav | Union St. Gilloise | Brighton | N/A |
| 01.07.2022 | K. Mitoma | Union St. Gilloise | Brighton | N/A |
| 01.07.2022 | K. Kozłowski | Union St. Gilloise | Brighton | N/A |
| 01.07.2022 | Álex Millán | Union St. Gilloise | Villarreal | N/A |
| 01.07.2022 | K. Atheba | Union St. Gilloise | — | Free |
| 01.07.2022 | J. Imbrechts | Charleroi | Union St. Gilloise | N/A |
| 01.07.2022 | M. Lewis | — | Union St. Gilloise | N/A |
| 01.07.2022 | D. Marcq | Union St. Gilloise | Charleroi | N/A |
| 01.07.2022 | F. Avenatti | Union St. Gilloise | Standard Liege | N/A |
| 01.07.2022 | V. Boone | — | Union St. Gilloise | N/A |
| 01.07.2022 | M. Sorinola | Union St. Gilloise | — | Loan |
| 01.07.2022 | A. Hamzaoui | — | Union St. Gilloise | N/A |
| 01.07.2022 | J. Bager | Union St. Gilloise | Charleroi | N/A |
| 01.07.2022 | L. Amani | Charleroi | Union St. Gilloise | N/A |
| 01.07.2022 | R. Sykes | — | Union St. Gilloise | N/A |
| 20.06.2022 | D. Eckert Ayensa | — | Union St. Gilloise | N/A |
| 15.06.2022 | A. Dony | St. Truiden | Union St. Gilloise | N/A |
| 01.02.2022 | D. Undav | Brighton | Union St. Gilloise | Loan |
| 31.01.2022 | D. Undav | Union St. Gilloise | Brighton | € 7M |
| 31.01.2022 | M. Lewis | Union St. Gilloise | — | Loan |
| 28.01.2022 | Álex Millán | Villarreal | Union St. Gilloise | Loan |
| 22.01.2022 | Cameron Puertas | Lausanne | Union St. Gilloise | N/A |
| 05.01.2022 | K. Kozłowski | Brighton | Union St. Gilloise | Loan |
| 04.01.2022 | K. Machida | — | Union St. Gilloise | Loan |
| 11.08.2021 | K. Mitoma | Brighton | Union St. Gilloise | Loan |
| 09.08.2021 | A. Sigurðarson | Union St. Gilloise | — | N/A |
| 05.08.2021 | A. Hamzaoui | Union St. Gilloise | — | Loan |
| 03.08.2021 | B. Labeau | Union St. Gilloise | — | Free |
| 23.07.2021 | Nik Lorbek | Union St. Gilloise | — | N/A |
| 22.07.2021 | R. Ferber | Union St. Gilloise | — | Free |
| 07.07.2021 | D. Marcq | Zulte Waregem | Union St. Gilloise | Free |
| 07.07.2021 | E. Jordanov | Union St. Gilloise | KVC Westerlo | N/A |
| 02.07.2021 | F. Avenatti | Standard Liege | Union St. Gilloise | Loan |
| 01.07.2021 | B. Nieuwkoop | Feyenoord | Union St. Gilloise | Free |
| 01.07.2021 | M. Mehlem | Union St. Gilloise | — | Free |
| 01.07.2021 | L. Paolucci | — | Union St. Gilloise | N/A |
| 01.07.2021 | A. Soussi | Union St. Gilloise | Antwerp | N/A |
| 01.07.2021 | R. Ferber | — | Union St. Gilloise | N/A |
| 01.07.2021 | M. Sorinola | — | Union St. Gilloise | Free |
| 01.07.2021 | M. Fixelles | Union St. Gilloise | — | Free |
| 01.07.2021 | L. Amani | Charleroi | Union St. Gilloise | Loan |
| 01.07.2021 | L. Pirard | — | Union St. Gilloise | N/A |
| 29.06.2021 | A. Cochrane | Union St. Gilloise | Brighton | N/A |