Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 10/2026 |  | Paul Pöpperl | MF | |||
| 10/2026 |  | Rami Malaeb | FW |  | Rot-Weiss Essen U19 | Rot-Weiss Essen U19 |
| 09/2026 |  | Eric Verstappen | GK | |||
| 08/2026 | | Nick Bätzner | MF |  | SC Paderborn 07 | Paderborn |
| 07/2026 |  | Dickson Abiama | FW |  | 1. FC Kaiserslautern | K'lautern |
| 07/2026 | | Semir Telalović | FW |  | 1. FC Nuremberg | Nuremberg |
| 07/2026 | | Max Geschwill | DF |  | Holstein Kiel | Holstein Kiel |
| 07/2026 |  | Noah Pesch | FW |  | Bor. Mönchengladbach | M'gladbach |
| 07/2026 | | Romero Gerres | GK | | Rot-Weiss Essen U19 | Rot-Weiss Essen U19 |
| 07/2026 | | Luca Bazzoli | DF |  | SSV Ulm 1846 | SSV Ulm |
| 07/2026 | | Ekin Çelebi | DF |  | 1. FC Schweinfurt 05 | Schweinfurt |
| 07/2026 | | Tony Menzel | MF |  | Dynamo Dresden | Dresden |
| 07/2026 | | Janne Sietan | MF |  | Waldhof Mannheim | Waldhof Mannh. |
| 07/2026 |  | Aiman Dardari | FW |  | SpVgg Greuther Fürth | Gr. Fürth |
| 07/2026 | | Jörg Mikoleit | AT-C |  | Grasshopper Club Zürich | Grasshoppers |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2026 | | Gianluca Swajkowski | MF |  | 1. FC Bocholt | 1. FC Bocholt |
| 08/2026 | | Malte Brüning | GK |  | Eintracht Norderstedt | Norderstedt |
| 08/2026 | | Michael Schultz | DF |  | SV Wehen Wiesbaden | Wiesbaden |
| 07/2026 |  | Tino Casali | GK |  | VfL Bochum | Bochum |
| 07/2026 |  | Kaito Mizuta | FW |  | Havre AC | HAC |
| 07/2026 | | Nicolai Schulte-Kellinghaus | DF |  | SG Wattenscheid 09 | Wattenscheid |
| 07/2026 |  | Klaus Gjasula | MF |  | TSG Hoffenheim II | Hoffenheim II |
| 07/2026 | | Nils Kaiser | MF |  | 1. FC Lok Leipzig | Lok Leipzig |
| 07/2026 | | Torben Müsel | MF |  | 1. FC Magdeburg | Magdeburg |
| 07/2026 | | Dickson Abiama | FW | | 1. FC Kaiserslautern | K'lautern |
| 07/2026 | | Jannik Mause | FW | | 1. FC Kaiserslautern | K'lautern |
| 07/2026 | | Kelsey Owusu | FW |  | 1. FC Saarbrücken | Saarbrücken |
| 07/2026 | | Ramien Safi | FW |  | MSV Duisburg | Duisburg |
| 07/2026 | | Danny Schmidt | FW |  | Fortuna Düsseldorf | Düsseldorf |