Újpest FC: every transfer in and out, fees paid and earned, squad market value, €7m spent and €5.3m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-24 | Tom Lacoux | Újpest FC | HNK Gorica | Free |
| 2026-08-04 | Ákos Markgráf | Újpest FC | FC København | €1.5m |
| 2026-07-21 | Tizian-Valentino Scharmer | Sturm Graz II | Újpest FC | Free |
| 2026-07-18 | Adrián Dénes | Újpest FC | Budapest Honvéd W | Free |
| 2026-07-16 | Bence Juhász | Újpest FC | Merida | Loan |
| 2026-07-07 | Dávid Dombó | Kazincbarcika | Újpest FC | Free |
| 2026-07-01 | Muhamed Tijani | Slavia | Újpest FC | €1m |
| 2026-07-01 | Ákos Markgráf | Puskás AFC | Újpest FC | €1m |
| 2026-07-01 | Heitor | Maccabi Tel Aviv | Újpest FC | Loan |
| 2026-07-01 | Etienne Amenyido | Preußen Münster | Újpest FC | Free |
| 2026-07-01 | Péter Szappanos | Puskás AFC | Újpest FC | Free |
| 2026-07-01 | Davit Kobouri | Újpest FC | NK Olimpija | Free |
| 2026-07-01 | Dominik Kaczvinszki | Újpest FC | Nyíregyháza | Loan |
| 2026-02-11 | Damian Rasak | Újpest FC | GKS Katowice | Loan |
| 2026-02-06 | Mátyás Tajti | Újpest FC | FK Csikszereda | Free |
| 2026-01-31 | Arne Maier | Augsburg | Újpest FC | Free |
| 2026-01-30 | Nejc Gradisar | Al Ahly | Újpest FC | Loan |
| 2026-01-24 | Bálint Geiger | Újpest FC | MOL Fehérvár | Loan |
| 2026-01-20 | Noah Fenyő | Frankfurt | Újpest FC | Loan |
| 2026-01-19 | Tiago Gonçalves | Újpest FC | Mantova | Free |