| Player | Position | Value |
|---|---|---|
| Andrija Maksimović | MC | 3.0M |
| Mika Walther | DM | 750.0K |
| Lionel Voufack | DL | 500.0K |
| Player | From | Fee | Date |
|---|---|---|---|
| Blaswich Janis | Bayer Leverkusen | 150.0K | 08.08.2027 |
| Meyer Alexander | Borussia Dortmund | 170.0K | 15.08.2027 |
| Oyarzábal Mikel | Real Sociedad | 101.9M | 22.08.2027 |
| Friedrich Jürgen | Free Agent | Free | 23.08.2027 |
| Hartmann Uwe | Free Agent | Free | 23.08.2027 |
| Hartmann Frank | Free Agent | Free | 23.08.2027 |
| Stein Felix | Free Agent | Free | 23.08.2027 |
| Vogel Georg | Free Agent | Free | 23.08.2027 |
| Rieder Fabian | FC Augsburg | 16.8M | 27.08.2027 |
| Jeltsch Finn | VfB Stuttgart | Free | 01.09.2027 |
| Pieringer Marvin | Heidenheim | 16.0M | 21.01.2028 |
| Osterhage Patrick | Free Agent | Free | 20.03.2028 |
| Kownacki Dawid | Werder Bremen | 1.6M | 12.06.2028 |
| Banks Noahkai | FC Augsburg | 12.9M | 18.06.2028 |
| Player | To | Fee | Date |
|---|---|---|---|
| Baku Ridle | Hertha BSC | 18.5M | 22.08.2027 |
| Rômulo | Bayern Munich | 27.9M | 10.01.2028 |
| Gebel Viggo | Free Agent | Free | 01.02.2028 |
| Reitz Rocco | Darmstadt 98 | 22.0M | 13.06.2028 |
| Yamamoto Ota | Werder Bremen | 3.1M | 13.06.2028 |
| Geertruida Lutsharel | PSV | 24.9M | 25.01.2028 |
| Player | From | Date | End Date |
|---|---|---|---|
| Jakupović Aldin | Holstein Kiel | 18.06.2028 | 14.04.2029 |
| Player | To | Date | End Date |
|---|---|---|---|
| Bouanani Badredine | Bayern Munich | 24.08.2027 | 19.06.2028 |
| Aghehowa Samu | Werder Bremen | 03.09.2027 | 30.04.2028 |
| Chadaille Bitshiabu El | Greuther Fürth | 06.01.2028 | 05.05.2028 |
| Gomis Tidiam | Mainz 05 | 08.01.2028 | 03.11.2028 |
| Kemlein Aljoscha | Dynamo Dresden | 12.01.2028 | 11.05.2028 |
| Harder Conrad | FC Augsburg | 21.01.2028 | 20.05.2028 |
| Guiu Marc | Eintracht Frankfurt | 13.06.2028 | 09.05.2029 |
| Bouanani Badredine | SV Elversberg | 15.06.2028 | 11.05.2029 |