Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2026 |  | Nico Meckien | MF |  | Hamburger SV U19 | Hamburg U19 |
| 08/2026 | | Lukas Schunter | GK |  | Chemnitzer FC | Chemnitz |
| 07/2026 | | Mads Bröcker | MF |  | RB Leipzig II | RB Leipzig II |
| 07/2026 | | Frede Gerschewski | GK | | Hamburger SV U19 | Hamburg U19 |
| 07/2026 | | James Stubbs | GK |  | Hamburger SV U17 | Hamburg U17 |
| 07/2026 | | Joel Agyekum | DF |  | Viktoria Köln | Vikt. Köln |
| 07/2026 | | Mikael Baza | DF |  | Hamburg U16 | U16 |
| 07/2026 | | Sebastian Boltersdorf | DF |  | VfL Bochum U19 | Bochum U19 |
| 07/2026 | | Jahnoa Hensel | DF | | Hamburger SV U19 | Hamburg U19 |
| 07/2026 | | Calvin Rahr | DF |  | FC St. Pauli II | St. Pauli II |
| 07/2026 |  | Immanuël Pherai | MF |  | SV 07 Elversberg | Elversberg |
| 07/2026 | | Alessandro Puzzo | MF |  | 1. FC Köln U19 | Köln U19 |
| 07/2026 | | Radin Amadou | FW |  | SV Hemelingen | Hemelingen |
| 07/2026 | | Joonas Frenzel | FW |  | 1. FC Magdeburg II | Magdeburg II |
| 07/2026 | | Jannes von Diczelski | FW | | Hamburger SV U17 | Hamburg U17 |
| 07/2026 |  | Sérgio Peixoto | AS-CO | | Hamburger SV U17 | Hamburg U17 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2026 | | Mikael Baza | DF |  | FC Barcelona U19 | Barcelona U19 |
| 08/2026 | | Omar Megeed | MF |  | SpVgg Greuther Fürth | Gr. Fürth |
| 07/2026 | | Jonas-Finn Hartig | MF |  | Lüneburger SK Hansa | LSK Hansa |
| 07/2026 | | Jamal Nabe | DF |  | Berliner AK 07 | BAK |
| 07/2026 | | Maurice Boakye | FW |  | CS Marítimo | CS Marítimo |
| 07/2026 | | Juri Gottschalk | GK |  | Eimsbütteler TV U19 | U19 |
| 07/2026 | | Hannes Hermann | GK |  | Jahn Regensburg | Regensburg |
| 07/2026 | | Lukas Bornschein | DF |  | VfL Osnabrück | Osnabrück |
| 07/2026 | | Noah Katterbach | DF |  | Eintracht Braunschweig | Braunschweig |
| 07/2026 | | Timon Kramer | DF |  | SV Rödinghausen | Rödinghausen |
| 07/2026 | | Benjamin Lamce | MF |  | Weiche Flensburg 08 | W. Flensburg |
| 07/2026 | | Leonardo Posadas | MF |  | TSV Havelse | TSV Havelse |
| 07/2026 | | Nilavan Prabakaran | MF |  | VfV Hildesheim | VfV Hildesheim |
| 07/2026 | | Bilal Yalçınkaya | MF |  | SC Verl | Verl |
| 07/2026 | | Glory Kiveta | FW |  | Eintracht Braunschweig II | BTSV II |
| 07/2026 | | Moritz Reimers | FW |  | Holstein Kiel | Holstein Kiel |
| 07/2026 | | Otto Stange | FW |  | Hamburger SV | Hamburg |
| 07/2026 | | Niklas Tuppeck | FW |  | SC Wiedenbrück | Wiedenbr. |
| 07/2026 |  | Mehmet Yıldırım | FW |  | Hamburger SV U21 | U21 |
| 07/2026 | | Soner Uysal | AS-CO |  | Hamburger SV | Hamburg |