| Player | From | Fee | Date |
|---|---|---|---|
| Berger Marcel | Free Agent | Free | 23.08.2027 |
| Albrecht Georg | Free Agent | Free | 23.08.2027 |
| Graf René | Free Agent | Free | 23.08.2027 |
| Krüger Lars | Free Agent | Free | 23.08.2027 |
| Meyer Jürgen | Free Agent | Free | 23.08.2027 |
| Uldriķis Roberts | Arminia Bielefeld | 1.2M | 31.01.2028 |
| Petrovič Žan | Free Agent | Free | 28.02.2028 |
| Kabak Ozan | Free Agent | Free | 03.06.2028 |
| Horn Tim | Free Agent | Free | 05.06.2028 |
| Sauer Benjamin | Free Agent | Free | 05.06.2028 |
| Seidel Sven | Free Agent | Free | 05.06.2028 |
| Schwarz Kevin | Free Agent | Free | 05.06.2028 |
| Heinrich Tobias | Free Agent | Free | 05.06.2028 |
| Jung Richard | Free Agent | Free | 05.06.2028 |
| Weber Klaus | Free Agent | Free | 05.06.2028 |
| Sommer Leon | Free Agent | Free | 05.06.2028 |
| Walter Anton | Free Agent | Free | 05.06.2028 |
| Köhler Sebastian | Free Agent | Free | 05.06.2028 |
| Koudossou Henri | FC Augsburg | 910.0K | 06.06.2028 |
| Fall Fallou | Free Agent | Free | 09.06.2028 |
| Müller Marcus | Holstein Kiel | 2.1M | 12.06.2028 |
| Player | To | Fee | Date |
|---|---|---|---|
| Öztunali Levin | Nürnberg | 590.0K | 09.08.2027 |
| Torunarigha Jordan | Free Agent | Free | 01.09.2027 |
| Elfadli Daniel | Free Agent | Free | 01.09.2027 |
| Lehmann Florian | Free Agent | Free | 01.09.2027 |
| Sambi Lokonga Albert | VfL Bochum | 19.0M | 09.06.2028 |
| Sinani Danel | Borussia Mönchengladbach | 1.9M | 10.06.2028 |
| Player | From | Date | End Date |
|---|---|---|---|
| Provedel Ivan | Inter | 07.01.2028 | 06.05.2028 |
| Sobolev Alexandr | CSKA Moscow | 11.01.2028 | 10.05.2028 |
| Player | To | Date | End Date |
|---|---|---|---|
| Dickes Fernando | Kaiserslautern | 18.08.2027 | 13.06.2028 |
| Tangvik Sander | Kaiserslautern | 17.06.2028 | 13.05.2029 |
| Huber Silas | TSC | 09.01.2028 | 08.05.2028 |
| Mikelbrencis William | Napredak | 05.02.2028 | 05.05.2028 |