Hamburger SV (Bundesliga): every transfer in and out, fees paid and earned, squad market value, €107m spent and €144m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Shafiq Nandja | Hamburger SV II | Hamburg | — |
| 2026-07-01 | Ransford Königsdörffer | Hamburg | Mainz | Free |
| 2026-07-01 | Albert Grønbaek | Stade Rennais | Hamburg | €4.7m |
| 2026-02-02 | Warmed Omari | Stade Rennais | Hamburg | €2m |
| 2026-02-02 | Philip Otele | Basel | Hamburg | Loan |
| 2026-01-31 | Gui Ramos | Hamburger SV | Beijing Guoan | €100k |
| 2026-01-31 | Gui Ramos | Hamburg | BJ Guoan | €100k |
| 2026-01-31 | Albert Grønbaek | Stade Rennais | Hamburg | Loan |
| 2026-01-30 | Emir Sahiti | Hamburg | M. Tel Aviv | Loan |
| 2026-01-29 | Silvan Hefti | Hamburg | D.C. United | €150k |
| 2026-01-22 | Sander Tangvik | Rosenborg BK | Hamburg | €2.6m |
| 2026-01-17 | Anssi Suhonen | Hamburg | Odense BK | €20k |
| 2026-01-07 | Damion Downs | Southampton | Hamburg | Loan |
| 2025-09-01 | Otto Stange | Hamburg | SV Elversberg | Loan |
| 2025-09-01 | Fábio Vieira | Arsenal | Hamburg | Loan |
| 2025-09-01 | Albert Sambi Lokonga | Arsenal | Hamburg | €300k |
| 2025-08-29 | Luka Vuskovic | Tottenham | Hamburg | Loan |
| 2025-08-21 | Sebastian Schonlau | Hamburg | Vancouver | €150k |
| 2025-08-07 | Warmed Omari | Stade Rennais | Hamburg | Loan |
| 2025-08-07 | Giorgi Gocholeishvili | Shakhtar D. | Hamburg | Loan |