Bundesliga
FC Augsburg
- In: N/A
- Out: Frederik Winther (Bröndby IF; loan), Lukas Petkov (Greuther Fürth; loan)
Bayer Leverkusen
- In: N/A
- Out: Zidan Sertdemir (FC Nordsjælland; loan)
Bayern Munich
- In: João Cancelo (Manchester City; loan)
- Out: None
Borussia Dortmund
- In: N/A
- Out: Thorgan Hazard (PSV Eindhoven; loan w/€500k fee)
Eintracht Frankfurt
- In: Philipp Max (PSV Eindhoven; loan)
- Out: N/A
1. FSV Mainz 05
- In: N/A
- Out: Ben Bobzien (SV Elversberg; loan)
Hertha BSC
- In: Tolga Cigerci (Ankaragücü; €300k)
- Out: Daishawn Redan (Venezia; loan)
FC Schalke 04
- In: Éder Balanta (Club Brugge; loan)
- Out: N/A
- In: N/A
- Out: Lys Mousset (Nîmes Olympique; loan)
VfL Bochum
- In: N/A
- Out: Naouirou Ahamada (Crystal Palace; €12m)
La Liga
Atlético Madrid
- In: Matt Doherty (free transfer from Tottenham)
- Out: Felipe (Nottingham Forest; €2.3m)
Barcelona
- In: N/A
- Out: Héctor Bellerín (free transfer to Sporting CP)
CA Osasuna
- In: N/A
- Out: Javi Martínez (SD Huesca; loan)
Celta de Vigo
- In: Haris Seferovic (SL Benfica; loan)
- Out: Denis Suárez (Espanyol; loan w/€200k fee)
Espanyol
- In: José Gragera (Sporting Gijón; €2.8m), Denis Suárez (Celta de Vigo; loan w/€200k fee)
- Out: N/A
RCD Mallorca
- In: Manu Morlanes (Villarreal; loan)
- Out: N/A
Real Betis
- In: Ayoze Pérez (Leicester City; loan)
- Out: Loren Morón (UD Las Palmas; loan)
Real Valladolid
- In: Martin Hongla (Hellas Verona; loan), Selim Amallah (Standard Liége; €1m)
- Out: Zouhair Feddal (free transfer)
Sevilla
- In: N/A
- Out: Kike Salas (CD Tenerife; loan)
Sporting Gijon
- In: N/A
- Out: José Gragera (Espanyol; €2.8m)
Villarreal
- In: N/A
- Out: Manu Morlanes (RCD Mallorca; loan)
Ligue 1
AJ Ajaccio
- In: Moussa Djitté (Austin FC; loan)
- Out: N/A
AJ Auxerre
- In: Han-Noah Massengo (Bristol City; loan)
- Out: Alexandre Coeff (Brescia; loan)
Angers SCO
- In: Faouzi Ghoulam (free transfer)
- Out: Sofiane Boufal (Al-Rayyan; €6m), Ibrahima Niane (FC Metz; loan)
AS Monaco
- In: N/A
- Out: Arthur Zagre (Excelsior; loan), Félix Lemaréchal (Stade Brestois; loan)
ESTAC Troyes
- In: N/A
- Out: Amar Abdirahman Ahmed (Lommel SK; loan)
FC Lorient
- In: Joel Mugisha Mvuka (Bodø/Glimt; €5.5m), Ayman Kari (PSG; loan), Julian Pollersbeck (Olympique Lyonnais)
- Out: Adrian Grbic (Valenciennes; loan)
Montpellier
- In: Issiaga Sylla (free transfer)
- Out: Arnaud Souquet (free transfer)
OGC Nice
- In: Terem Moffi (Stade de Reims; loan w/€2.5m fee)
- Out: N/A
Olympique Lyonnais
- In: Jeffinho (Botafogo; €10m)
- Out: Julian Pollersbeck (FC Lorient)
Olympique de Marseille
- In: Vitinha (Sporting Braga; €32m)
- Out: N/A
Stade de Reims
- In: N/A
- Out: Bradley Locko (Stade Brestois; loan), Andreaw Gravillon (Torino; loan), Martin Adeline (Rodez AF; loan), N’Dri Koffi (Le Mans; loan), Terem Moffi (OGC Nice; loan w/€2.5m free)
Stade Brestois
- In: Bradley Locko (Stade de Reims; loan), Félix Lemaréchal (AS Monaco; loan)
- Out: N/A
Stade Rennais
- In: Djed Spence (Tottenham; loan)
- Out: N/A
Toulouse
- In: N/A
- Out: Issiaga Sylla (free transfer), Isak Pettersson (free transfer), Naatan Skyttä (loan; Odense BK)
Serie A
AC Monza
- In: N/A
- Out: Salvatore Molina (SSC Bari; loan), Gabriele Ferrarini (Modena; loan), Andrea Carboni (Venezia; loan), Warren Bondo (Reggina; loan)
Atalanta Bergamo
- In: N/A
- Out: Alassane Sidibe (Ascoli; loan), Roberto Piccoli (Empoli; loan), Nadir Zortea (Sassuolo; loan)
Bologna
- In: Georgios Kyriakopoulos (Sassuolo; loan)
- Out: Emanuel Vignato (Empoli; loan)
Cremonese
- In: Pablo Galdames (Genoa; loan)
- Out: Tommaso Milanese (Venezia; loan)
Empoli
- In: Emanuel Vignato (Bologna; loan), Roberto Piccoli (Atalanta Bergamo; loan)
- Out: Nedim Bajrami (Sassuolo; loan)
Fiorentina
- In: Antonin Barak (Hellas Verona; €8.5m)
- Out: Abdelhamid Sabiri (Sampdoria; loan)
Hellas Verona
- In: Oliver Abdilgaard (Celtic; free transfer)
- Out: Martin Hongla (Real Valladolis; loan), Antonin Barak (Fiorentina; €8.5m), Koray Günter (Sampdoria; loan)
Inter Milan
- In: N/A
- Out: Gabriel Brazão (SPAL; loan), Eddie Salcedo (Genoa; loan), Sebastiano Esposito (Bari; loan)
Juventus
- In: N/A
- Out: Marley Aké (Dijon FCO; loan), Luca Pellegrini (Lazio; loan)
Lazio
- In: Diego González (Celaya; undisclosed), Luca Pellegrini (Juventus; loan)
- Out: N/A
Lecce
- In: Simone Romagnoli (Parma Calcio; undisclosed), Pietro Ceccaroni (Venezia; loan)
- Out: N/A
Roma
- In: Diego Llorente (Leeds United; loan w/€500k fee)
- Out: N/A
Sampdoria
- In: Salvatore Molina (AC Monza; loan), Emirhan Ilkhan (Torino; loan), Koray Günger (Hellas Verona; loan)
- Out: Ronaldo Vieira (Torino, loan)
Sassuolo
- In: Nedim Bajrami (Empoli; loan), Nadir Zortea (Atalanta Bergamo; loan)
- Out: Georgios Kyriakopoulos (Bologna; loan)
Spezia Calcio
- In: N/A
- Out: David Strelec (Reggina; loan)
Torino
- In: Ronaldo Vieira (Sampdoria; loan), Andreaw Gravillon (Stade de Reims; loan)
- Out: Saša Lukić (Fulham; €9m), Emirhan Ilkhan (Sampdoria; loan), Simone Edera (Pordenone; undisclosed)
Udinese Calcio
- In: Florian Thauvin (free transfer)
- Out: N/A
