1. FC Union Berlin
Zugänge
| ab | Name | Pos | Mannschaft | Team | ||
|---|---|---|---|---|---|---|
| 06/2026 |  | Chris Bedia | ST |  | BSC Young Boys | Young Boys |
| 08/2025 |  | Derrick Köhn | AB |  | Galatasaray | Galatasaray |
| 08/2025 |  | Dmytro Bohdanov | ST |  | Dynamo Dresden | Dresden |
| 07/2025 |  | Stanley Nsoki | AB |  | 1899 Hoffenheim | Hoffenheim |
| 07/2025 | | Matheo Raab | TW |  | Hamburger SV | Hamburg |
| 07/2025 | | Lennart Grill | TW |  | SpVgg Greuther Fürth | Gr. Fürth |
| 07/2025 | | Yannic Stein | TW |  | SV Babelsberg 03 | Babelsberg |
| 07/2025 | | Paul Jaeckel | AB |  | Eintracht Braunschweig | Braunschweig |
| 07/2025 | | Andrik Markgraf | AB |  | 1. FC Union Berlin U19 | Union Berlin U19 |
| 07/2025 |  | Alex Král | MF |  | Espanyol Barcelona | Espanyol |
| 07/2025 | | Ilyas Ansah | ST |  | SC Paderborn 07 | Paderborn |
| 07/2025 |  | Livan Burcu | ST |  | 1. FC Magdeburg | Magdeburg |
| 07/2025 |  | Oliver Burke | ST |  | Werder Bremen | Werder |
| 07/2025 |  | Danilo | CO-TR |  | Leeds United | Leeds Utd |
| 07/2025 | | Adrian Wittmann | CO-TR |
Abgänge
| ab | Name | Pos | Mannschaft | Team | ||
|---|---|---|---|---|---|---|
| 09/2025 | | Lucas Tousart | MF |  | Stade Brestois 29 | Stade Brest |
| 08/2025 | | Alexander Schwolow | TW |  | Heart of Midlothian | Hearts FC |
| 08/2025 | | Yannic Stein | TW | | SV Babelsberg 03 | Babelsberg |
| 08/2025 |  | László Bénes | MF |  | Kayserispor | Kayserispor |
| 07/2025 | | Paul Jaeckel | AB |  | Preußen Münster | Pr. Münster |
| 07/2025 | | Lennart Grill | TW | | Dynamo Dresden | Dresden |
| 07/2025 | | Kevin Vogt | AB |  | VfL Bochum | Bochum |
| 07/2025 | | Benedict Hollerbach | ST |  | 1. FSV Mainz 05 | Mainz 05 |
| 07/2025 |  | Ivan Prtajin | ST |  | 1. FC Kaiserslautern | K'lautern |
| 07/2025 | | Kevin Volland | ST |  | TSV 1860 München | 1860 |
