| 10 Sept 25 | C. Eriksen Christian Eriksen | XXX | → |  VfL WolfsburgWOB | Free |
| 01 Sept 25 | N. Jackson Nicolas Jackson |  ChelseaCHE | → |  Bayern MunichMUN | Loan |
| 01 Sept 25 | L. Openda Loïs Openda |  RB LeipzigRBL | → |  JuventusJUV | Loan |
| 01 Sept 25 | V. Boniface Victor Boniface |  Bayer LeverkusenB04 | → | VfL WolfsburgWOB | Loan |
| 01 Sept 25 | G. Puerta Gustavo Puerta | Bayer LeverkusenB04 | → |  Racing SantanderRAC | Undisclosed |
| 01 Sept 25 | E. Fernández Ezequiel Fernández |  Al QadsiahQAD | → | Bayer LeverkusenB04 | Undisclosed |
| 01 Sept 25 | P. Hincapié Piero Hincapié | Bayer LeverkusenB04 | → |  ArsenalARS | Loan |
| 01 Sept 25 | M. Röhl Merlin Röhl |  SC FreiburgSCF | → |  EvertonEVE | Loan |
| 01 Sept 25 | E. Elmas Eljif Elmas | RB LeipzigRBL | → |  NapoliNAP | Loan |
| 01 Sept 25 | M. Obafemi Michael Obafemi |  BurnleyBUR | → |  Werder BremenSVW | Loan |
| 01 Sept 25 | J. Kusi-Asare Jonah Kusi-Asare | Bayern MunichMUN | → |  FulhamFUL | Loan |
| 01 Sept 25 | J. Seelt Jenson Seelt |  SunderlandSUN | → | VfL WolfsburgWOB | Loan |
| 01 Sept 25 | D. Odogu David Odogu | VfL WolfsburgWOB | → |  AC MilanMIL | Undisclosed |
| 01 Sept 25 | L. Geertruida Lutsharel Geertruida | RB LeipzigRBL | → | SunderlandSUN | Loan |
| 31 Aug 25 | E. Ben Seghir Eliesse Ben Seghir |  AS MonacoMON | → | Bayer LeverkusenB04 | Undisclosed |
| 30 Aug 25 | N. Woltemade Nick Woltemade |  VfB StuttgartVFB | → |  Newcastle UnitedNEW | Undisclosed |
| 29 Aug 25 | F. Silva Fábio Silva |  Wolverhampton WanderersWOL | → |  Borussia DortmundDOR | Undisclosed |
| 29 Aug 25 | X. Simons Xavi Simons | RB LeipzigRBL | → |  Tottenham HotspurTOT | Undisclosed |
| 28 Aug 25 | I. Schmidt Isaac Schmidt |  Leeds UnitedLEE | → | Werder BremenSVW | Loan |
| 28 Aug 25 | S. Kumbedi Saël Kumbedi |  LyonLYON | → | VfL WolfsburgWOB | Loan |
| 27 Aug 25 | A. Anselmino Aaron Anselmino | ChelseaCHE | → | Borussia DortmundDOR | Loan |
| 26 Aug 25 | L. Vázquez Lucas Vázquez |  Real MadridRMA | → | Bayer LeverkusenB04 | Free |
| 23 Aug 25 | G. Reyna Giovanni Reyna | Borussia DortmundDOR | → |  Borussia MönchengladbachBMG | Undisclosed |
| 22 Aug 25 | K. Hein Karl Hein | ArsenalARS | → | Werder BremenSVW | Loan |
| 22 Aug 25 | P. Wanner Paul Wanner | Bayern MunichMUN | → |  PSV EindhovenPSV | Undisclosed |
| 21 Aug 25 | A. Adli Amine Adli | Bayer LeverkusenB04 | → |  AFC BournemouthBOU | Undisclosed |
| 21 Aug 25 | L. Badé Loïc Badé |  SevillaSEV | → | Bayer LeverkusenB04 | Undisclosed |
| 21 Aug 25 | C. Echeverri Claudio Echeverri |  Manchester CityMNC | → | Bayer LeverkusenB04 | Loan |
| 21 Aug 25 | P. Aaronson Paxten Aaronson |  Eintracht FrankfurtSGE | → |  Colorado RapidsCOL | Undisclosed |
| 18 Aug 25 | S. Haller Sébastien Haller | Borussia DortmundDOR | → |  FC UtrechtUTR | Undisclosed |
| 15 Aug 25 | K. Coman Kingsley Coman | Bayern MunichMUN | → |  Al NassrNSR | Undisclosed |
| 12 Aug 25 | Berkay Karaca |  Schalke 04S04 | → | AC MilanMIL | Undisclosed |
| 12 Aug 25 | E. Poku Ernest Poku |  AZ AlkmaarAZ | → | Bayer LeverkusenB04 | Undisclosed |
| 11 Aug 25 | J. Blaswich Janis Blaswich | RB LeipzigRBL | → | Bayer LeverkusenB04 | Undisclosed |
| 09 Aug 25 | B. Sesko Benjamin Sesko | RB LeipzigRBL | → |  Manchester UnitedMAN | Undisclosed |
| 08 Aug 25 | L. Hradecky Lukas Hradecky | Bayer LeverkusenB04 | → | AS MonacoMON | Undisclosed |
| 08 Aug 25 | K. Itakura Kou Itakura | Borussia MönchengladbachBMG | → |  Ajax AmsterdamAJA | Undisclosed |
| 06 Aug 25 | T. Müller Thomas Müller | Bayern MunichMUN | → |  Vancouver WhitecapsVAN | Free |
| 05 Aug 25 | V. Coufal Vladimír Coufal |  West Ham UnitedWHU | → |  TSG HoffenheimTSG | Free |
| 05 Aug 25 | T. Buchmann Tarek Buchmann | Bayern MunichMUN | → |  1. FC NürnbergFCN | Loan |
| 03 Aug 25 | J. Palhinha João Palhinha | Bayern MunichMUN | → | Tottenham HotspurTOT | Loan |
| 30 Jul 25 | B. Zaragoza Bryan Zaragoza | Bayern MunichMUN | → |  Celta VigoCEL | Loan |
| 30 Jul 25 | L. Díaz Luis Díaz |  LiverpoolLIV | → | Bayern MunichMUN | Undisclosed |
| 30 Jul 25 | G. Xhaka Granit Xhaka | Bayer LeverkusenB04 | → | SunderlandSUN | Undisclosed |
| 29 Jul 25 | A. Faye Abdoulaye Faye | Bayer LeverkusenB04 | → |  LorientLOR | Loan |
| 29 Jul 25 | A. Aznou Adam Aznou | Bayern MunichMUN | → | EvertonEVE | Undisclosed |
| 29 Jul 25 | L. Zvonarek Lovro Zvonarek | Bayern MunichMUN | → |  GrasshoppersGCZ | Loan |
| 28 Jul 25 | D. Ramaj Diant Ramaj | Borussia DortmundDOR | → |  1. FC Heidenheim 1846HDH | Loan |
| 27 Jul 25 | C. Andrés Chema Andrés | Real MadridRMA | → | VfB StuttgartVFB | Undisclosed |
| 23 Jul 25 | J. Lindstrom Jesper Lindstrom | NapoliNAP | → | VfL WolfsburgWOB | Loan |
| 23 Jul 25 | H. Ekitike Hugo Ekitike | Eintracht FrankfurtSGE | → | LiverpoolLIV | Undisclosed |
| 23 Jul 25 | S. Mbangula Samuel Mbangula | JuventusJUV | → | Werder BremenSVW | 10000000 |
| 22 Jul 25 | A. Stach Anton Stach | TSG HoffenheimTSG | → | Leeds UnitedLEE | Undisclosed |
| 21 Jul 25 | D. Peretz Daniel Peretz | Bayern MunichMUN | → |  Hamburg SVHSV | Loan |
| 18 Jul 25 | N. Irankunda Nestory Irankunda | Bayern MunichMUN | → |  WatfordWAT | Undisclosed |
| 16 Jul 25 | A. Harangi Aiden Harangi | Eintracht FrankfurtSGE | → |  San Diego FCSD | Loan |
| 15 Jul 25 | H. Massengo Han-Noah Massengo | BurnleyBUR | → |  FC AugsburgFCA | Undisclosed |
| 15 Jul 25 | M. Kovar Matej Kovar | Bayer LeverkusenB04 | → | PSV EindhovenPSV | Loan |
| 12 Jul 25 | M. Tillman Malik Tillman | PSV EindhovenPSV | → | Bayer LeverkusenB04 | Undisclosed |
| 11 Jul 25 | C. Kofane Christian Kofane |  AlbaceteALB | → | Bayer LeverkusenB04 | Undisclosed |
| 11 Jul 25 | J. Bruun Larsen Jacob Bruun Larsen | VfB StuttgartVFB | → | BurnleyBUR | Undisclosed |
| 10 Jul 25 | C. Rasmussen Christian Rasmussen | Ajax AmsterdamAJA | → |  Fortuna DüsseldorfF95 | Undisclosed |
| 07 Jul 25 | S. Coulibaly Soumaila Coulibaly | Borussia DortmundDOR | → |  StrasbourgSTR | Undisclosed |
| 05 Jul 25 | J. Gittens Jamie Gittens | Borussia DortmundDOR | → | ChelseaCHE | Undisclosed |
| 04 Jul 25 | M. Wöber Maximilian Wöber | Leeds UnitedLEE | → | Werder BremenSVW | Loan |
| 02 Jul 25 | J. Quansah Jarell Quansah | LiverpoolLIV | → | Bayer LeverkusenB04 | Undisclosed |
| 01 Jul 25 | I. Maza Ibrahim Maza |  Hertha BerlinBSC | → | Bayer LeverkusenB04 | Undisclosed |
| 01 Jul 25 | G. Puerta Gustavo Puerta | Bayer LeverkusenB04 | → |  Hull CityHUL | Undisclosed |
| 01 Jul 25 | E. Dier Eric Dier | Bayern MunichMUN | → | AS MonacoMON | Free |
| 01 Jul 25 | Y. Couto Yan Couto | Manchester CityMNC | → | Borussia DortmundDOR | Undisclosed |
| 01 Jul 25 | L. Nmecha Lukas Nmecha | VfL WolfsburgWOB | → | Leeds UnitedLEE | Free |
| 01 Jul 25 | O. Kossounou Odilon Kossounou | Bayer LeverkusenB04 | → |  AtalantaATA | Undisclosed |
| 01 Jul 25 | F. Wirtz Florian Wirtz | Bayer LeverkusenB04 | → | LiverpoolLIV | Undisclosed |
| 01 Jul 25 | A. Tape Axel Tape |  Paris Saint-GermainPSG | → | Bayer LeverkusenB04 | Free |
| 01 Jul 25 | S. Bornauw Sebastiaan Bornauw | VfL WolfsburgWOB | → | Leeds UnitedLEE | Undisclosed |
| 01 Jul 25 | P. Drewes Patrick Drewes |  VfL BochumBOC | → | Borussia DortmundDOR | Undisclosed |
| 01 Jul 25 | A. Faye Abdoulaye Faye |  BK HäckenBKH | → | Bayer LeverkusenB04 | Undisclosed |
| 01 Jul 25 | Y. Moukoko Youssoufa Moukoko | Borussia DortmundDOR | → |  F.C. KøbenhavnKBH | Undisclosed |
| 01 Jul 25 | D. Svensson Daniel Svensson |  FC NordsjællandFCN | → | Borussia DortmundDOR | Undisclosed |
| 01 Jul 25 | G. Vidovic Gabriel Vidovic | Bayern MunichMUN | → | DZXDinamo ZagrebDinamo Zagreb | Undisclosed |
| 01 Jul 25 | L. Sané Leroy Sané | Bayern MunichMUN | → |  GalatasarayGAL | Free |
| 01 Jul 25 | A. Ibrahimovic Arijon Ibrahimovic | Bayern MunichMUN | → | 1. FC Heidenheim 1846HDH | Loan |
| 01 Jul 25 | M. Krattenmacher Maurice Krattenmacher | Bayern MunichMUN | → | Hertha BerlinBSC | Loan |
| 01 Jul 25 | T. Oermann Tim Oermann | Bayer LeverkusenB04 | → |  SK Sturm GrazSTG | Loan |
| 01 Jul 25 | F. Onyeka Francis-Ikechukwu Onyeka | Bayer LeverkusenB04 | → | VfL BochumBOC | Loan |
| 01 Jul 25 | A. Stepanov Artem Stepanov | Bayer LeverkusenB04 | → | 1. FC NürnbergFCN | Loan |
| 01 Jul 25 | K. Wätjen Kjell-Arik Wätjen | Borussia DortmundDOR | → | VfL BochumBOC | Loan |
| 01 Jul 25 | M. Tel Mathys Tel | Bayern MunichMUN | → | Tottenham HotspurTOT | Undisclosed |
| 28 Jun 25 | Y. Moukoko Youssoufa Moukoko | Borussia DortmundDOR | → | F.C. KøbenhavnKBH | Undisclosed |
| 10 Jun 25 | J. Bellingham Jobe Bellingham | SunderlandSUN | → | Borussia DortmundDOR | Undisclosed |
| 09 Jun 25 | J. Tah Jonathan Tah | Bayer LeverkusenB04 | → | Bayern MunichMUN | Undisclosed |
| 09 Jun 25 | T. Bischof Tom Bischof | TSG HoffenheimTSG | → | Bayern MunichMUN | Undisclosed |
| 03 Jun 25 | M. Flekken Mark Flekken |  BrentfordBRE | → | Bayer LeverkusenB04 | Undisclosed |
| 01 Jun 25 | T. Oermann Tim Oermann | VfL BochumBOC | → | Bayer LeverkusenB04 | Undisclosed |
| 01 Jun 25 | J. Frimpong Jeremie Frimpong | Bayer LeverkusenB04 | → | LiverpoolLIV | Undisclosed |
| 03 Feb 25 | A. Aznou Adam Aznou | Bayern MunichMUN | → |  Real ValladolidVLL | Loan |
| 03 Feb 25 | N. Mbamba Noah Mbamba | Bayer LeverkusenB04 | → | DXXDenderDEN | Loan |
| 03 Feb 25 | D. Svensson Daniel Svensson | FC NordsjællandFCN | → | Borussia DortmundDOR | Loan |
| 03 Feb 25 | K. Nedeljkovic Kosta Nedeljkovic |  Aston VillaAVL | → | RB LeipzigRBL | Loan |
| 03 Feb 25 | S. Tzimas Stefanos Tzimas |  Brighton & Hove AlbionBHA | → | 1. FC NürnbergFCN | Loan |
| 03 Feb 25 | S. Tzimas Stefanos Tzimas | 1. FC NürnbergFCN | → | Brighton & Hove AlbionBHA | Undisclosed |
| 03 Feb 25 | D. Ramaj Diant Ramaj | Ajax AmsterdamAJA | → | Borussia DortmundDOR | Undisclosed |
| 03 Feb 25 | C. Chukwuemeka Carney Chukwuemeka | ChelseaCHE | → | Borussia DortmundDOR | Loan |
| 03 Feb 25 | A. Silva André Silva | RB LeipzigRBL | → | Werder BremenSVW | Loan |
| 03 Feb 25 | T. Gomis Tidiam Gomis |  CaenCAN | → | RB LeipzigRBL | Undisclosed |
| 03 Feb 25 | N. Aséko Noël Aséko | Bayern MunichMUN | → |  Hannover 96H96 | Loan |
| 03 Feb 25 | D. Ramaj Diant Ramaj | Borussia DortmundDOR | → |  FC MidtjyllandMID | Loan |
| 31 Jan 25 | M. Hermoso Mario Hermoso |  AS RomaROMA | → | Bayer LeverkusenB04 | Loan |
| 30 Jan 25 | X. Simons Xavi Simons | Paris Saint-GermainPSG | → | RB LeipzigRBL | Undisclosed |
| 29 Jan 25 | E. Buendía Emiliano Buendía | Aston VillaAVL | → | Bayer LeverkusenB04 | Loan |
| 27 Jan 25 | J. Urbig Jonas Urbig |  FC CologneKOE | → | Bayern MunichMUN | Undisclosed |
| 27 Jan 25 | M. Roerslev Mads Roerslev | BrentfordBRE | → | VfL WolfsburgWOB | Loan |
| 23 Jan 25 | O. Marmoush Omar Marmoush | Eintracht FrankfurtSGE | → | Manchester CityMNC | Undisclosed |
| 17 Jan 25 | A. Vermeeren Arthur Vermeeren |  Atlético MadridATM | → | RB LeipzigRBL | Undisclosed |
| 14 Jan 25 | D. Malen Donyell Malen | Borussia DortmundDOR | → | Aston VillaAVL | Undisclosed |
| 13 Jan 25 | A. Ibrahimovic Arijon Ibrahimovic | Bayern MunichMUN | → |  LazioLAZ | Loan |
| 11 Jan 25 | S. Fofana Sadik Fofana | Bayer LeverkusenB04 | → | SK Sturm GrazSTG | Undisclosed |
| 10 Jan 25 | R. Baku Ridle Baku | VfL WolfsburgWOB | → | RB LeipzigRBL | Undisclosed |
| 06 Jan 25 | I. Kaboré Issa Kaboré | Manchester CityMNC | → | Werder BremenSVW | Loan |
| 03 Jan 25 | F. Krätzig Frans Krätzig | Bayern MunichMUN | → | 1. FC Heidenheim 1846HDH | Loan |
| 02 Jan 25 | G. Orban Gift Orban | LyonLYON | → | TSG HoffenheimTSG | 9000000 |
| 02 Jan 25 | A. Sarco Alejo Sarco |  Vélez SarsfieldVEL | → | Bayer LeverkusenB04 | Free |
| 01 Jan 25 | B. Darboe Bajung Darboe |  LAFCLAFC | → | Bayern MunichMUN | Undisclosed |