Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2026 |  | Elias Bakatukanda | DF |  | 1. FC Köln | Köln |
| 09/2026 |  | Jonathan Gómez | DF |  | PAOK Saloniki | PAOK |
| 09/2026 | | Leon Flach | MF |  | Jagiellonia Białystok | Jagiellonia |
| 08/2026 | | Adrian Beck | MF |  | 1. FC Heidenheim 1846 | Heidenheim |
| 08/2026 |  | Daniel Kyereh | MF | |||
| 07/2026 | | Konrad Faber | DF |  | FC St. Gallen | St.Gallen |
| 07/2026 | | Lowe Bjerlestam | GK |  | Rot-Weiß Oberhausen U19 | Oberhausen U19 |
| 07/2026 | | Luca Böggemann | GK |  | Sportfreunde Lotte | SF Lotte |
| 07/2026 | | Jonas Krumrey | GK |  | Holstein Kiel | Holstein Kiel |
| 07/2026 |  | Joel Abu Hanna | DF |  | Levadiakos | Levadiakos |
| 07/2026 | | Lukas Bornschein | DF |  | Hamburger SV II | Hamburg II |
| 07/2026 | | Adem Bukvic | MF |  | VfL Osnabrück U19 | Osnabrück U19 |
| 07/2026 | | Leonhard Münst | MF |  | Viktoria Köln | Vikt. Köln |
| 07/2026 | | Leon Opitz | MF |  | Karlsruher SC | Karlsruhe |
| 07/2026 | | Jonathan Wensing | MF |  | SV Meppen | SV Meppen |
| 07/2026 | | Finn Cramer | FW |  | SSV Jeddeloh II | SSV Jeddeloh |
| 07/2026 | | Luca Raimund | FW |  | Fortuna Düsseldorf | Düsseldorf |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2026 | | Lukas Bornschein | DF | | Fortuna Düsseldorf | Düsseldorf |
| 08/2026 |  | David Kopacz | MF |  | Hansa Rostock | Rostock |
| 07/2026 |  | Lukas Jonsson | GK |  | Djurgårdens IF | Djurgårdens IF |
| 07/2026 | | Finn Cramer | FW |  | BFC Preussen | BFC Preussen |
| 07/2026 | | Kevin Schumacher | DF |  | TSV Havelse | TSV Havelse |
| 07/2026 | | Mats Remberg | GK |  | 1. FC Bocholt | 1. FC Bocholt |
| 07/2026 |  | Bashkim Ajdini | DF |  | Hamburger SV II (U14) U15 | U15 |
| 07/2026 |  | Frederik Christensen | DF |  | MSV Duisburg | Duisburg |
| 07/2026 |  | Yiğit Karademir | DF |  | VfL Bochum | Bochum |
| 07/2026 | | Lars Kehl | MF |  | SV Darmstadt 98 | Darmstadt |
| 07/2026 | | Kevin Wiethaup | MF | | Karlsruher SC | Karlsruhe |
| 07/2026 | | Luc Ihorst | FW |  | Kickers Emden | Emden |
| 07/2026 | | Julian Kania | FW |  | Arminia Bielefeld | Bielefeld |
| 07/2026 | | Kai Pröger | FW |  | VfB Oldenburg | Oldenburg |