| Player | Position | Value |
|---|---|---|
| Muhammad Dahaba | DC | 3.7M |
| Marwin Schmitz | DM | 3.7M |
| Arkadiusz Pyrka | DR | 13.0M |
| Samuel Klein | MC | 3.6M |
| Scott Banks | MR | 9.6M |
| Martijn Kaars | AMC | 13.0M |
| Paul Winkler | FL | 350.0K |
| Louis Oppie | DL | 21.0M |
| Taichi Hara | AMR | 6.2M |
| Ricky-Jade Jones | AML | 13.0M |
| David Nemeth | DC | 12.0M |
| Karol Mets | DC | 500.0K |
| Player | From | Fee | Date |
|---|---|---|---|
| Gersbeck Marius | Hertha BSC | 420.0K | 08.08.2027 |
| Hrgota Branimir | Greuther Fürth | 380.0K | 09.08.2027 |
| Müller Florian | SC Freiburg | 6.9M | 16.08.2027 |
| Winkler Paul | Free Agent | Free | 23.08.2027 |
| Ludwig Felix | Free Agent | Free | 23.08.2027 |
| Meier Martin | Free Agent | Free | 23.08.2027 |
| Scholz Oliver | Free Agent | Free | 23.08.2027 |
| Keller Leon | Free Agent | Free | 23.08.2027 |
| Villalba Fran | Free Agent | Free | 05.09.2027 |
| Karl Lennart | Bayern Munich | 30.9M | 11.01.2028 |
| Bahoya Jean-Mattéo | Eintracht Frankfurt | 37.3M | 18.01.2028 |
| Alfa-Ruprecht Farid | Free Agent | Free | 06.02.2028 |
| Player | To | Fee | Date |
|---|---|---|---|
| Metcalfe Connor | Free Agent | Free | 01.09.2027 |
| Westphal Jannik | Free Agent | Free | 01.09.2027 |
| Rasmussen Mathias | Free Agent | Free | 01.09.2027 |
| Voigt Frank | Free Agent | Free | 01.09.2027 |
| Obermair Raphael | Werder Bremen | 1.9M | 24.01.2028 |
| Player | From | Date | End Date |
|---|---|---|---|
| Ba Sanoussy | SC Paderborn | 15.01.2028 | 10.11.2028 |
| Gadou Joane | Borussia Dortmund | 06.06.2028 | 02.04.2029 |
| Chabot Jeff | VfB Stuttgart | 12.06.2028 | 08.05.2029 |
| Torsiello Fabio | Darmstadt 98 | 15.06.2028 | 11.04.2029 |
| Schwäbe Marvin | VfL Wolfsburg | 22.06.2028 | 18.05.2029 |