| When | Movement | Decision | Who |
|---|---|---|---|
| 14.06.2028 | Bayer Leverkusen → Hamburger SV | Joined on loan | |
| 28.05.2028 | Werder Bremen → Bayer Leverkusen | Returned from loan | |
| 02.02.2028 | 5y · $1.8M/y | Contract extension signed | |
| 01.02.2028 | 5y · $1.8M/y | Contract renewal offered | Köhler René |
| 10.01.2028 | Bayer Leverkusen → Werder Bremen | Joined on loan | |
| 30.06.2027 | Utrecht → Bayer Leverkusen | Returned from loan |