| Date | Type | From | To |
|---|---|---|---|
| 2026-07-12 | Free agent |  Anderlecht AND |  Lens LEN |
| 2026-06-29 | Free agent | Anderlecht AND | — |
| 2023-09-06 | N/A |  Borussia Dortmund DOR | Anderlecht AND |
| 2023-07-01 | N/A |  PSV Eindhoven PSV | Borussia Dortmund DOR |
| 2023-01-31 | Loan | Borussia Dortmund DOR | PSV Eindhoven PSV |
| 2019-07-01 | € 25M |  Borussia Mönchengladbach MOE | Borussia Dortmund DOR |
| 2015-07-01 | € 8M |  Chelsea CHE | Borussia Mönchengladbach MOE |
| 2014-07-05 | Loan | Chelsea CHE | Borussia Mönchengladbach MOE |
| 2013-07-15 | Loan | Chelsea CHE |  Zulte Waregem WAR |
| 2013-07-01 | N/A | Zulte Waregem WAR | Chelsea CHE |
| 2012-08-30 | Loan | Chelsea CHE | Zulte Waregem WAR |
| 2012-07-25 | € 1M | Lens LEN | Chelsea CHE |
