Fortuna Düsseldorf (Bundesliga): every transfer in and out, fees paid and earned, squad market value, €39m spent and €75m earned. Tracked squad: ACTUAL Value €10m vs €17m market value. Valued as of 2026-08-25.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-24 | Erik Wekesser | 1. FC Kaiserslautern | Fortuna Düsseldorf | Free |
| 2026-08-11 | Andreas Müller | Karlsruher SC | Fortuna Düsseldorf | Loan |
| 2026-08-04 | Giovanni Haag | Fortuna Düsseldorf | Lion City Sailors FC | Free |
| 2026-07-28 | Philipp Förster | Karlsruher SC | Fortuna Düsseldorf | Free |
| 2026-07-23 | Marcel Benger | Preußen Münster | Fortuna Düsseldorf | Free |
| 2026-07-20 | Tim Rossmann | Fortuna Düsseldorf | Sonnenhof Großaspach | Free |
| 2026-07-16 | Emmanuel Iyoha | Fortuna Düsseldorf | 1.FC Magdeburg | Free |
| 2026-07-13 | Anouar El Azzouzi | Fortuna Düsseldorf | Frosinone Calcio | Free |
| 2026-07-10 | Felix Meiser | FC Augsburg | Fortuna Düsseldorf | Free |
| 2026-07-10 | Sima Suso | Fortuna Düsseldorf | FC Augsburg | €1.6m |
| 2026-07-09 | Lukas Eixler | Zwickau | Fortuna Düsseldorf | Free |
| 2026-07-08 | Christian Rasmussen | Fortuna Düsseldorf | VfL Bochum | Free |
| 2026-07-06 | Lasse Rieß | 1.FSV Mainz 05 | Fortuna Düsseldorf | Loan |
| 2026-07-06 | Yassine Bouchama | Preußen Münster | Fortuna Düsseldorf | Free |
| 2026-07-01 | Noah Egouli | Fortuna Düsseldorf II | Fortuna Düsseldorf | Free |
| 2026-07-01 | Jomaine Consbruch | SpVgg Greuther Fürth | Fortuna Düsseldorf | Free |
| 2026-07-01 | Jorrit Hendrix | Preußen Münster | Fortuna Düsseldorf | Free |
| 2026-07-01 | Dominique Heintz | 1.FC Köln | Fortuna Düsseldorf | Free |
| 2026-07-01 | Eric Hottmann | Jahn Regensburg | Fortuna Düsseldorf | €300k |
| 2026-07-01 | Miguel Fernandes Goncalves | Homburg | Fortuna Düsseldorf | €25k |