Transfers
Recent player movements in and out of the squad
| Date | Player | From | To | Type |
|---|---|---|---|---|
| 01.09.2025 | Marc Guiu | Sunderland | Chelsea | Back from Loan |
| 01.09.2025 | P. Roberts | Sunderland | — | Loan |
| 01.09.2025 | P. Roberts | Sunderland | — | Loan |
| 01.09.2025 | J. Seelt | Sunderland | — | Loan |
| 01.09.2025 | J. Seelt | Sunderland | VfL Wolfsburg | Loan |
| 01.09.2025 | N. Huggins | Sunderland | — | Loan |
| 01.09.2025 | N. Huggins | Sunderland | — | Loan |
| 01.09.2025 | B. Traoré | Ajax | Sunderland | Transfer |
| 01.09.2025 | L. Geertruida | RB Leipzig | Sunderland | Loan |
| 01.09.2025 | B. Brobbey | Ajax | Sunderland | Transfer |
| 31.08.2025 | J. Seelt | Sunderland | VfL Wolfsburg | Loan |
| 31.08.2025 | Oliver Bainbridge | Sunderland | — | Loan |
| 31.08.2025 | N. Huggins | Sunderland | — | Loan |
| 31.08.2025 | B. Traoré | Ajax | Sunderland | Transfer |
| 31.08.2025 | L. Geertruida | RB Leipzig | Sunderland | Loan |
| 31.08.2025 | B. Brobbey | Ajax | Sunderland | Transfer |
| 31.08.2025 | Marc Guiu | Sunderland | Chelsea | Return from loan |
| 31.08.2025 | A. Browne | Sunderland | — | Loan |
| 31.08.2025 | P. Roberts | Sunderland | — | Loan |
| 30.08.2025 | B. Traoré | Ajax | Sunderland | Transfer |
| 30.08.2025 | B. Brobbey | Ajax | Sunderland | Transfer |
| 30.08.2025 | T. Ogunsuyi | Sunderland | Falkirk | Loan |
| 29.08.2025 | T. Ogunsuyi | Sunderland | Falkirk | Loan |
| 27.08.2025 | Luís Semedo | Sunderland | Moreirense | Loan |
| 26.08.2025 | Luís Semedo | Sunderland | Moreirense | Loan |
| 25.08.2025 | J. Whittaker | Sunderland | Sunderland | Raise |
| 21.08.2025 | N. Triantis | Sunderland | — | Transfer |
| 21.08.2025 | N. Triantis | Sunderland | — | Transfer |
| 17.08.2025 | N. Mukiele | — | Sunderland | Transfer |
| 17.08.2025 | N. Mukiele | Paris Saint Germain | Sunderland | Transfer |
| 16.08.2025 | N. Mukiele | Paris Saint Germain | Sunderland | Transfer |
| 15.08.2025 | N. Mukiele | Paris Saint Germain | Sunderland | Transfer |
| 14.08.2025 | P. Ekwah | Sunderland | Saint Etienne | Transfer |
| 13.08.2025 | P. Ekwah | Sunderland | Saint Etienne | Transfer |
| 12.08.2025 | T. Lavery | Sunderland | — | Loan |
| 12.08.2025 | O. Alderete | Getafe | Sunderland | Transfer |
| 11.08.2025 | O. Alderete | Getafe | Sunderland | Transfer |
| 10.08.2025 | A. Masuaku | — | Sunderland | Free Transfer |
| 10.08.2025 | A. Masuaku | Besiktas | Sunderland | Free Transfer |
| 10.08.2025 | O. Alderete | Getafe | Sunderland | Transfer |
| 09.08.2025 | A. Masuaku | Besiktas | Sunderland | Free agent |
| 06.08.2025 | Marc Guiu | Chelsea | Sunderland | Loan |
| 05.08.2025 | Marc Guiu | Chelsea | Sunderland | Loan |
| 01.08.2025 | R. Roefs | — | Sunderland | Transfer |
| 01.08.2025 | R. Roefs | NEC Nijmegen | Sunderland | Transfer |
| 30.07.2025 | R. Roefs | NEC Nijmegen | Sunderland | Transfer |
| 30.07.2025 | G. Xhaka | Bayer Leverkusen | Sunderland | Transfer |
| 29.07.2025 | N. Fisher | Sunderland | — | - |
| 11.07.2025 | J. Jones | Sunderland | Sunderland | - |
| 10.07.2025 | S. Adingra | Brighton | Sunderland | Transfer |