| Player | Position | Value |
|---|---|---|
| Jonas Adjetey | DC | 15.0M |
| Hauke Wahl | DC | 1.2M |
| Yannick Gerhardt | DL | 2.6M |
| Moussa Doumbia | AML | 500.0K |
| Moritz Jenz | DC | 20.0M |
| Saël Kumbedi | DR | 27.0M |
| Mathys Angély | DC | 12.0M |
| Nicolas Cozza | DL | 12.0M |
| Elvis Rexhbeçaj | DM | 6.9M |
| Aster Vranckx | DM | 8.8M |
| Vini Souza | DM | 20.0M |
| Pharell Hensel | DM | 8.5M |
| Robert Glatzel | ST | 1.0M |
| Player | From | Fee | Date |
|---|---|---|---|
| Bell Stefan | Mainz 05 | 310.0K | 01.08.2027 |
| Richter Gabriel | Free Agent | Free | 23.08.2027 |
| Hartmann Christian | Free Agent | Free | 23.08.2027 |
| Vogel Alexander | Free Agent | Free | 23.08.2027 |
| Koch Dominik | Free Agent | Free | 23.08.2027 |
| Möller Daniel | Free Agent | Free | 23.08.2027 |
| Mboula Michel | Free Agent | Free | 12.09.2027 |
| Rogério | Nürnberg | 6.7M | 17.01.2028 |
| Bilbija Filip | Werder Bremen | 4.7M | 21.01.2028 |
| Ilić Andrej | Eintracht Frankfurt | 10.4M | 31.01.2028 |
| Nmecha Felix | Borussia Dortmund | 58.3M | 07.06.2028 |
| Mašović Erhan | Hannover 96 | 600.0K | 13.06.2028 |
| Player | To | Fee | Date |
|---|---|---|---|
| Svanberg Mattias | Eintracht Frankfurt | 25.3M | 28.08.2027 |
| Berić Robert | Free Agent | Free | 31.10.2027 |
| Mæhle Joakim | Free Agent | Free | 01.02.2028 |
| Amoura Mohamed | FC Augsburg | 42.0M | 07.06.2028 |
| Guirassy Serhou | Fortuna Düsseldorf | 29.1M | 11.06.2028 |
| Player | From | Date | End Date |
|---|---|---|---|
| Potulski Kacper | Schalke 04 | 14.06.2028 | 10.04.2029 |
| Player | To | Date | End Date |
|---|---|---|---|
| Vranckx Aster | KV Kortrijk | 07.01.2028 | 06.05.2028 |
| Rexhbeçaj Elvis | Magdeburg | 29.08.2027 | 25.04.2028 |
| Zieliński Jakub | Kaiserslautern | 30.08.2027 | 25.06.2028 |
| Lemperle Tim | Werder Bremen | 02.09.2027 | 29.04.2028 |
| Souza Vini | Karlsruher SC | 06.09.2027 | 03.05.2028 |
| Dárdai Bence | SV Elversberg | 07.06.2028 | 03.05.2029 |
| Halilović Alen | Nürnberg | 13.06.2028 | 09.04.2029 |