Eyüpspor (Super Lig): every transfer in and out, fees paid and earned, squad market value, €7.9m spent and €17m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Umut Bozok | Eyüpspor | Without Club | — |
| 2026-07-01 | Mateusz Legowski | Eyüpspor | Without Club | — |
| 2026-03-01 | Taras Stepanenko | Eyüpspor | Kolos Kovalivka | Free |
| 2026-02-25 | Prince Ampem | Eyüpspor | Port FC | Loan |
| 2026-02-25 | Prince Ampem | Eyüpspor | SH Port | Loan |
| 2026-02-06 | Umut Keseci | Altinordu | Eyüpspor | €250k |
| 2026-02-06 | Robin Yalçın | Eyüpspor | Igdir FK | €97k |
| 2026-02-06 | Dorin Rotariu | Igdir FK | Eyüpspor | — |
| 2026-02-06 | Bedirhan Özyurt | Alanyaspor | Eyüpspor | Loan |
| 2026-02-06 | Anıl Yaşar | C. Rizespor | Eyüpspor | Loan |
| 2026-02-02 | Ismaila Manga | Essamaye FC | Eyüpspor | Free |
| 2026-02-02 | Diabel Ndoye | AF Darou Salam | Eyüpspor | Free |
| 2026-02-02 | Abdou Khadre Sy | AF Darou Salam | Eyüpspor | Free |
| 2026-01-15 | Ángel Torres | Dynamo Kyiv | Eyüpspor | Loan |
| 2026-01-15 | Kerem Demirbay | Eyüpspor | Kasimpasa | Free |
| 2026-01-13 | Jérôme Onguéné | Petrolul | Eyüpspor | Loan |
| 2026-01-13 | Arda Yavuz | Eyüpspor U19 | Eyüpspor | — |
| 2026-01-13 | Alp Köseer | Eyüpspor | E. Anadolu Spor | Free |
| 2026-01-09 | Yalçın Kayan | Eyüpspor | Samsunspor | €600k |
| 2026-01-09 | Lenny Pintor | LASK | Eyüpspor | Free |