Transfers
| In/Out | Date | Type | Club | Picture | Name | Age | Position | Nationality | Price |
|---|---|---|---|---|---|---|---|---|---|
| In | 2025-07-13 | Transfer | C. Rizespor |  | Tarık Çetin | 28 | GK |  | Free |
| In | 2025-07-12 | Transfer | KAA Gent |  | Archie Brown | 23 | LB |  | €8m |
| Out | 2025-07-10 | Transfer | AC Florenz |  | Edin Džeko | 39 | ST |  | Free |
| Out | 2025-07-10 | Transfer | Pendikspor |  | Yiğit Fidan | 20 | CB | | Free |
| Out | 2025-07-08 | Transfer | E. Erokspor |  | Ertuğrul Çetin | 22 | GK | | Free |
| In | 2025-07-06 | Transfer | Al-Nassr |  | Jhon Durán | 21 | ST |  | Free |
| Out | 2025-07-04 | Transfer | Birmingham City |  | B. Osayi-Samuel | 27 | RB |  | Free |
| Out | 2025-07-02 | Transfer | Eyüpspor |  | Emir Ortakaya | 21 | CB | | Free |
| In | 2025-07-01 | Transfer | AC Florenz |  | Sofyan Amrabat | 28 | CDM |  | €12m |
| Out | 2025-07-01 | Transfer | Without Club |  | Serdar Aziz | 34 | CB | | Free |
| Out | 2025-07-01 | Transfer | Without Club |  | Dušan Tadić | 36 | RW |  | Free |
| In | 2025-06-30 | Loan End | Eyüpspor |  | Emre Mor | 27 | RW | | Free |
| In | 2025-06-30 | Loan End | Zenit S-Pb |  | Ognjen Mimovic | 20 | RB | | Free |
| In | 2025-06-30 | Loan End | NK Maribor |  | Bartuğ Elmaz | 22 | CDM | | Free |
| In | 2025-06-30 | Loan End | Hull City |  | Lincoln | 26 | CAM |  | Free |
| In | 2025-06-30 | Loan End | Istanbulspor | | Yiğit Fidan | 20 | CB | | Free |
| In | 2025-06-30 | Loan End | Karagümrük |  | Furkan Akyüz | 19 | GK | | Free |
| In | 2025-06-30 | Loan End | Beerschot VA |  | Omar Fayed | 22 | CB |  | Free |
| In | 2025-06-30 | Loan End | Karagümrük |  | Arda Akgün | 18 | LW | | Free |
| In | 2025-06-30 | Loan End | FC Toulouse |  | Miha Zajc | 31 | CM |  | Free |
| In | 2025-06-30 | Loan End | Karagümrük |  | Yiğit Efe Demir | 20 | CB | | Free |
| In | 2025-06-30 | Loan End | Sakaryaspor |  | Emre Demir | 21 | CAM | | Free |
| In | 2025-06-30 | Loan End | Beerschot VA | | Emir Ortakaya | 21 | CB | | Free |
| Out | 2025-06-30 | Loan End | Al-Ahli |  | A. Saint-Maximin | 28 | LW |  | Free |
| Out | 2025-06-30 | Loan End | AC Florenz | | Sofyan Amrabat | 28 | CDM | | Free |
| Out | 2025-06-30 | Loan End | Paris SG |  | Milan Škriniar | 30 | CB |  | Free |
| In | 2025-06-11 | Loan End | LAFC |  | Cengiz Ünder | 28 | RW | | Free |
| Out | 2025-06-10 | Loan End | Juventus Turin |  | Filip Kostić | 32 | LM | | Free |