| 05 Sept 25 | M. Aleksic Milan Aleksic |  SunderlandSUN | → | CXXCracoviaCracovia | Loan |
| 02 Sept 25 | N. Rusyn Nazariy Rusyn | SunderlandSUN | → | AGXArka GdyniaArka Gdynia | Loan |
| 01 Sept 25 | A. Browne Alan Browne | SunderlandSUN | → |  MiddlesbroughMID | Loan |
| 01 Sept 25 | H. Amass Harry Amass |  Manchester UnitedMAN | → |  Sheffield WednesdaySHW | Loan |
| 01 Sept 25 | N. Huggins Niall Huggins | SunderlandSUN | → |  Wycombe WanderersWYC | Loan |
| 01 Sept 25 | J. Morgan Jimmy Morgan |  ChelseaCHE | → |  Peterborough UnitedPET | Loan |
| 01 Sept 25 | D. Gyabi Darko Gyabi |  Leeds UnitedLEE | → |  Hull CityHUL | Free |
| 01 Sept 25 | I. Samuels-Smith Ishé Samuels-Smith | ChelseaCHE | → |  Swansea CitySWA | Loan |
| 01 Sept 25 | B. Traoré Bertrand Traoré |  Ajax AmsterdamAJA | → | SunderlandSUN | Undisclosed |
| 01 Sept 25 | J. Bowler Josh Bowler |  Nottingham ForestNFO | → |  BlackpoolBLP | Free |
| 01 Sept 25 | L. Geertruida Lutsharel Geertruida |  RB LeipzigRBL | → | SunderlandSUN | Loan |
| 01 Sept 25 | J. Seelt Jenson Seelt | SunderlandSUN | → |  VfL WolfsburgWOB | Loan |
| 01 Sept 25 | D. Mcneilly Donnell Mcneilly | Nottingham ForestNFO | → | Wycombe WanderersWYC | Loan |
| 01 Sept 25 | P. Roberts Patrick Roberts | SunderlandSUN | → |  Birmingham CityBIR | Loan |
| 01 Sept 25 | B. Brobbey Brian Brobbey | Ajax AmsterdamAJA | → | SunderlandSUN | 20000000 |
| 01 Sept 25 | B. Manuel Benson Manuel |  BurnleyBUR | → | Swansea CitySWA | Loan |
| 27 Aug 25 | L. Silva Semedo Luís Semedo | SunderlandSUN | → |  MoreirenseMFC | Loan |
| 27 Aug 25 | M. Targett Matt Targett |  Newcastle UnitedNEW | → | MiddlesbroughMID | Loan |
| 25 Aug 25 | T. Grant True Grant |  Manchester CityMNC | → |  Stoke CitySTK | Undisclosed |
| 22 Aug 25 | L. Koumas Lewis Koumas |  LiverpoolLIV | → | Birmingham CityBIR | Loan |
| 22 Aug 25 | L. Dobbin Lewis Dobbin |  Aston VillaAVL | → |  Preston North EndPNE | Loan |
| 21 Aug 25 | N. Triantis Nectarios Triantis | SunderlandSUN | → |  Minnesota United FCMIN | Undisclosed |
| 20 Aug 25 | M. Stamenic Marko Stamenic | Nottingham ForestNFO | → | Swansea CitySWA | Undisclosed |
| 20 Aug 25 | A. Malanda Adilson Malanda |  Charlotte FCCLT | → | MiddlesbroughMID | Undisclosed |
| 20 Aug 25 | A. Malanda Adilson Malanda | MiddlesbroughMID | → | Charlotte FCCLT | Loan |
| 20 Aug 25 | L. Duru Leo Duru |  Blackburn RoversBLK | → |  San Diego FCSD | Loan |
| 19 Aug 25 | S. Nypan Sverre Nypan | Manchester CityMNC | → | MiddlesbroughMID | Loan |
| 18 Aug 25 | F. Okoronkwo Francis Okoronkwo |  EvertonEVE | → | BlackpoolBLP | Loan |
| 18 Aug 25 | M. Sherif Martin Sherif | EvertonEVE | → |  Rotherham UnitedROT | Loan |
| 17 Aug 25 | N. Mukiele Nordi Mukiele |  Paris Saint-GermainPSG | → | SunderlandSUN | Undisclosed |
| 16 Aug 25 | O. Hutchinson Omari Hutchinson |  Ipswich TownIPS | → | Nottingham ForestNFO | Undisclosed |
| 15 Aug 25 | D. Williams Derrick Williams |  Atlanta United FCATL | → |  ReadingREA | Undisclosed |
| 14 Aug 25 | P. Ekwah Pierre Ekwah | SunderlandSUN | → |  Saint-ÉtienneASSE | Undisclosed |
| 14 Aug 25 | M. Yalcouyé Malick Yalcouyé |  Brighton & Hove AlbionBHA | → | Swansea CitySWA | Loan |
| 12 Aug 25 | O. Alderete Omar Alderete |  GetafeGET | → | SunderlandSUN | Undisclosed |
| 10 Aug 25 | A. Masuaku Arthur Masuaku |  BesiktasBES | → | SunderlandSUN | Free |
| 10 Aug 25 | C. Akpom Chuba Akpom | Ajax AmsterdamAJA | → | Ipswich TownIPS | Loan |
| 09 Aug 25 | J. Gelhardt Joe Gelhardt | Leeds UnitedLEE | → | Hull CityHUL | Loan |
| 08 Aug 25 | A. Devine Alfie Devine |  Tottenham HotspurTOT | → | Preston North EndPNE | Loan |
| 07 Aug 25 | J. Cajuste Jens Cajuste |  NapoliNAP | → | Ipswich TownIPS | Loan |
| 07 Aug 25 | D. Taylor Dale Taylor | Nottingham ForestNFO | → | BlackpoolBLP | Undisclosed |
| 06 Aug 25 | J. Donley Jamie Donley | Tottenham HotspurTOT | → | Stoke CitySTK | Loan |
| 06 Aug 25 | G. Abbott George Abbott | Tottenham HotspurTOT | → | Wycombe WanderersWYC | Loan |
| 06 Aug 25 | M. Guiu Marc Guiu | ChelseaCHE | → | SunderlandSUN | Loan |
| 05 Aug 25 | M. Ebiowei Malcolm Ebiowei |  Crystal PalaceCRY | → | BlackpoolBLP | Undisclosed |
| 04 Aug 25 | S. Alzate Steven Alzate | Hull CityHUL | → | Atlanta United FCATL | Undisclosed |
| 04 Aug 25 | K. Casey Kaelan Casey |  West Ham UnitedWHU | → | Swansea CitySWA | Loan |
| 04 Aug 25 | K. Doyle Kamari Doyle | Brighton & Hove AlbionBHA | → | ReadingREA | Loan |
| 01 Aug 25 | I. Mabaya Isaac Mabaya | LiverpoolLIV | → |  Wigan AthleticWGA | Loan |
| 01 Aug 25 | R. Roefs Robin Roefs |  NEC NijmegenNEC | → | SunderlandSUN | Undisclosed |
| 31 Jul 25 | R. Trevitt Ryan Trevitt |  BrentfordBRE | → | Wigan AthleticWGA | Loan |
| 30 Jul 25 | G. Xhaka Granit Xhaka |  Bayer LeverkusenB04 | → | SunderlandSUN | Undisclosed |
| 29 Jul 25 | D. Ozoh David Ozoh | Crystal PalaceCRY | → |  Derby CountyDER | Loan |
| 29 Jul 25 | J. Ndala Joel Ndala | Manchester CityMNC | → | Hull CityHUL | Loan |
| 28 Jul 25 | R. Vítek Radek Vítek | Manchester UnitedMAN | → |  Bristol CityBRC | Loan |
| 25 Jul 25 | E. Cashin Eiran Cashin | Brighton & Hove AlbionBHA | → | Birmingham CityBIR | Loan |
| 25 Jul 25 | S. Benda Steven Benda |  FulhamFUL | → |  MillwallMIL | Loan |
| 25 Jul 25 | O. Beck Owen Beck | LiverpoolLIV | → | Derby CountyDER | Loan |
| 24 Jul 25 | C. Rushworth Carl Rushworth | Brighton & Hove AlbionBHA | → |  Coventry CityCOV | Loan |
| 24 Jul 25 | M. Young Matt Young | SunderlandSUN | → |  Salford CitySAL | Loan |
| 23 Jul 25 | A. Phillips Ashley Phillips | Tottenham HotspurTOT | → | Stoke CitySTK | Loan |
| 23 Jul 25 | A. Young Ashley Young | EvertonEVE | → | Ipswich TownIPS | Free |
| 22 Jul 25 | M. Kaleta Marvin Kaleta |  Wolverhampton WanderersWOL | → | Rotherham UnitedROT | Loan |
| 22 Jul 25 | G. Kodua Gideon Kodua | West Ham UnitedWHU | → |  Luton TownLTN | Loan |
| 21 Jul 25 | C. Vickers Caylon Vickers | Brighton & Hove AlbionBHA | → |  BarnsleyBAR | Loan |
| 17 Jul 25 | D. Gore Daniel Gore | Manchester UnitedMAN | → | Rotherham UnitedROT | Loan |
| 15 Jul 25 | P. Agyemang Patrick Agyemang | Charlotte FCCLT | → | Derby CountyDER | Undisclosed |
| 15 Jul 25 | D. Imray Danny Imray | Crystal PalaceCRY | → | BlackpoolBLP | Loan |
| 15 Jul 25 | J. Mullins Jamie Mullins | Brighton & Hove AlbionBHA | → | Wycombe WanderersWYC | Undisclosed |
| 10 Jul 25 | N. Lonwijk Nigel Lonwijk | Wolverhampton WanderersWOL | → | Luton TownLTN | Loan |
| 10 Jul 25 | S. Adingra Simon Adingra | Brighton & Hove AlbionBHA | → | SunderlandSUN | Undisclosed |
| 09 Jul 25 | C. Talbi Chemsdine Talbi |  Club BruggeBRU | → | SunderlandSUN | Undisclosed |
| 08 Jul 25 | R. Mandava Reinildo Mandava |  Atlético MadridATM | → | SunderlandSUN | Free |
| 07 Jul 25 | M. O’Mahony Mark O’Mahony | Brighton & Hove AlbionBHA | → | ReadingREA | Loan |
| 07 Jul 25 | F. Burns Finley Burns | Manchester CityMNC | → | ReadingREA | Loan |
| 06 Jul 25 | A. Aouchiche Adil Aouchiche | SunderlandSUN | → |  AberdeenABE | Loan |
| 05 Jul 25 | O. Offiah Odeluga Offiah | Brighton & Hove AlbionBHA | → | Preston North EndPNE | Undisclosed |
| 05 Jul 25 | D. Mubama Divin Mubama | Manchester CityMNC | → | Stoke CitySTK | Loan |
| 05 Jul 25 | A. Cozier-Duberry Amario Cozier-Duberry | Brighton & Hove AlbionBHA | → |  Bolton WanderersBOL | Loan |
| 04 Jul 25 | N. Sadiki Noah Sadiki |  Union St.-GilloiseUSG | → | SunderlandSUN | Undisclosed |
| 02 Jul 25 | J. Beadle James Beadle | Brighton & Hove AlbionBHA | → | Birmingham CityBIR | Loan |
| 02 Jul 25 | T. Doyle Tommy Doyle | Wolverhampton WanderersWOL | → | Birmingham CityBIR | Loan |
| 01 Jul 25 | A. Tuanzebe Axel Tuanzebe | Ipswich TownIPS | → | BurnleyBUR | Free |
| 01 Jul 25 | T. Sharman-Lowe Teddy Sharman-Lowe | ChelseaCHE | → | Bolton WanderersBOL | Loan |
| 01 Jul 25 | G. Puerta Gustavo Puerta | Bayer LeverkusenB04 | → | Hull CityHUL | Undisclosed |
| 01 Jul 25 | Z. Flemming Zian Flemming | MillwallMIL | → | BurnleyBUR | Undisclosed |
| 01 Jul 25 | D. Jebbison Daniel Jebbison |  AFC BournemouthBOU | → | Preston North EndPNE | Loan |
| 01 Jul 25 | M. Diarra Habib Diarra |  StrasbourgSTR | → | SunderlandSUN | Undisclosed |
| 01 Jul 25 | K. Kesler Hayden Kaine Kesler Hayden | Aston VillaAVL | → | Coventry CityCOV | Undisclosed |
| 27 Jun 25 | F. Woodman Freddie Woodman | Preston North EndPNE | → | LiverpoolLIV | Free |
| 10 Jun 25 | J. Bellingham Jobe Bellingham | SunderlandSUN | → |  Borussia DortmundDOR | Undisclosed |
| 04 Jun 25 | L. Delap Liam Delap | Ipswich TownIPS | → | ChelseaCHE | Undisclosed |
| 02 Jun 25 | R. Donovan Romelle Donovan | Birmingham CityBIR | → | BrentfordBRE | Undisclosed |
| 01 Jun 25 | T. Watson Tom Watson | SunderlandSUN | → | Brighton & Hove AlbionBHA | Undisclosed |
| 11 Feb 25 | L. Engel Lukas Engel | MiddlesbroughMID | → |  FC CincinnatiCIN | Loan |
| 04 Feb 25 | E. Latte Lath Emmanuel Latte Lath | MiddlesbroughMID | → | Atlanta United FCATL | Undisclosed |
| 03 Feb 25 | T. Bindon Tyler Bindon | ReadingREA | → | Nottingham ForestNFO | Undisclosed |
| 03 Feb 25 | D. Lembikisa Dexter Lembikisa | Wolverhampton WanderersWOL | → | BarnsleyBAR | Loan |
| 03 Feb 25 | T. Bindon Tyler Bindon | Nottingham ForestNFO | → | ReadingREA | Loan |
| 03 Feb 25 | S. Boniface Somtochukwu Boniface | ChelseaCHE | → | Ipswich TownIPS | Undisclosed |
| 03 Feb 25 | H. Armstrong Harrison Armstrong | EvertonEVE | → | Derby CountyDER | Loan |
| 03 Feb 25 | F. Back Finley Back | Nottingham ForestNFO | → | Wycombe WanderersWYC | Undisclosed |
| 03 Feb 25 | L. O'Brien Lewis O'Brien | Nottingham ForestNFO | → | Swansea CitySWA | Loan |
| 03 Feb 25 | S. Iling-Junior Samuel Iling-Junior | Aston VillaAVL | → | MiddlesbroughMID | Loan |
| 03 Feb 25 | E. Dennis Emmanuel Dennis | Nottingham ForestNFO | → | Blackburn RoversBLK | Loan |
| 03 Feb 25 | H. Vale Harvey Vale | ChelseaCHE | → |  Queens Park RangersQPR | Undisclosed |
| 03 Feb 25 | A. Palmer Alex Palmer |  West Bromwich AlbionWBA | → | Ipswich TownIPS | Undisclosed |
| 03 Feb 25 | B. Baker-Boaitey Benicio Baker-Boaitey | Brighton & Hove AlbionBHA | → | MillwallMIL | Undisclosed |
| 03 Feb 25 | Z. Sturge Zak Sturge | ChelseaCHE | → | MillwallMIL | Loan |
| 31 Jan 25 | L. Cundle Luke Cundle | Wolverhampton WanderersWOL | → | MillwallMIL | Undisclosed |
| 31 Jan 25 | D. Gore Daniel Gore | Manchester UnitedMAN | → | Rotherham UnitedROT | Loan |
| 31 Jan 25 | S. Armstrong Stuart Armstrong |  Vancouver WhitecapsVAN | → | Sheffield WednesdaySHW | Undisclosed |
| 31 Jan 25 | E. Cashin Eiran Cashin | Derby CountyDER | → | Brighton & Hove AlbionBHA | Undisclosed |
| 30 Jan 25 | O. Foyo Osman Foyo | Ipswich TownIPS | → |  AFC WimbledonWIM | Undisclosed |
| 30 Jan 25 | J. Gauci Joe Gauci | Aston VillaAVL | → | BarnsleyBAR | Loan |
| 29 Jan 25 | H. Clarke Harrison Clarke | Ipswich TownIPS | → |  Sheffield UnitedSHU | Loan |
| 29 Jan 25 | M. Yang Yang Min-Hyeok | Tottenham HotspurTOT | → | Queens Park RangersQPR | Loan |
| 29 Jan 25 | M. Travers Mark Travers | AFC BournemouthBOU | → | MiddlesbroughMID | Loan |
| 29 Jan 25 | L. Barry Louie Barry | Aston VillaAVL | → | Hull CityHUL | Loan |
| 25 Jan 25 | S. Edmundson Sam Edmundson | Ipswich TownIPS | → | MiddlesbroughMID | Undisclosed |
| 24 Jan 25 | A. Al-Hamadi Ali Ibrahim Al-Hamadi | Ipswich TownIPS | → | Stoke CitySTK | Loan |
| 24 Jan 25 | S. Charles Shea Charles |  SouthamptonSOU | → | Sheffield WednesdaySHW | Loan |
| 23 Jan 25 | J. Enciso Julio Enciso | Brighton & Hove AlbionBHA | → | Ipswich TownIPS | Loan |
| 22 Jan 25 | J. Wilson-Esbrand Josh Wilson-Esbrand | Manchester CityMNC | → | Stoke CitySTK | Loan |
| 20 Jan 25 | A. Murphy Alex Murphy | Newcastle UnitedNEW | → | Bolton WanderersBOL | Loan |
| 18 Jan 25 | R. Esse Romain Esse | MillwallMIL | → | Crystal PalaceCRY | Undisclosed |
| 16 Jan 25 | J. Meghoma Jayden Meghoma | BrentfordBRE | → | Preston North EndPNE | Loan |
| 15 Jan 25 | J. Philogene Jaden Philogene | Aston VillaAVL | → | Ipswich TownIPS | Undisclosed |
| 10 Jan 25 | M. Crooks Matt Crooks |  Real Salt LakeRSL | → | Hull CityHUL | Undisclosed |
| 05 Jan 25 | B. Godfrey Ben Godfrey |  AtalantaATA | → | Ipswich TownIPS | Loan |
| 03 Jan 25 | J. Danns Jayden Danns | LiverpoolLIV | → | SunderlandSUN | Loan |
| 01 Jan 25 | R. Edwards Ronnie Edwards | SouthamptonSOU | → | Queens Park RangersQPR | Loan |
| 01 Jan 25 | J. Robinson Josh Robinson |  ArsenalARS | → | Wigan AthleticWGA | Undisclosed |