Alaves
In: Facundo Pellistri (Manchester United, loan), Iñigo Córdoba (Athletic Bilbao, loan)
Out: Andrei Lupu (Gimnastic, free), Adrián Marín (Granada, free)
Athletic Bilbao
In: n/a
Out: Kenan Kodro (Real Vallodolid, loan), Iñigo Córdoba (Alaves, loan)
Atletico Madrid
In: Moussa Dembele (Lyon, loan)
Out: Diego Costa (released), Manu Sanchez (Osasuna, loan), Ivan Saponjic (Cadiz, loan), Juan Sanabria (Real Zaragoza, loan), Alberto Rodenas (Cordoba, free), Victor Mollejo (Mallorca, loan), Germán Valera (Tenerife, loan)
Barcelona
In: n/a
Out: Carles Aleña (Getafe, loan), Jean-Clair Todibo (Nice, loan)
Cadiz
In: Ivan Saponjic (Atletico Madrid, loan), Nacho Díaz (Almeria, free), Ruben Sobrino (Valencia, loan)
Out: Sergio Gonzalez (Tenerife, loan), Jean-Pierre Rhyner (Emmen, loan), Alvaro Gimenez (Mallorca, loan), Nano Mesa (Logroñés, loan)
Celta Vigo
In: Aaron Martín (Mainz, loan), Augusto Solari (Racing Club, free)
Out: Souleymane Cissé (Aranteiro, loan), Okay Yokuslu (West Brom, loan)
Eibar
In: Aleix García (Dinamo Bucharest, free)
Out: Roberto Olabe (Tondela, loan), Damian Kadzior (Alanyaspor, loan)
Elche
In: Johan Mojica (Girona, loan), Paolo Gazzaniga (Tottenham, loan)
Out: n/a
Getafe
In: Carles Aleña (Barcelona, loan), Takefusa Kubo (Real Madrid, loan), Soufiane Chakla (Villarreal, loan)
Out: Julio Grance (Linares, free), Jack Harper (Villarreal, loan)
Granada
In: Domingos Quina (Watford, loan), Adrián Marín (Alaves, free)
Out: Ramon Azeez (Cartagena, loan)
Huesca
In: Denis Vavro (Lazio, loan)
Out: n/a
Levante
In: n/a
Out: Koke Vegas (Mallorca, loan)
Osasuna
In: Manu Sanchez (Atletico, loan)
Out: Brandon (Leganes, loan), Raul Navas (Cartagena, undisclosed), Jonas Ramalho (Girona, loan)
Real Betis
In: n/a
Out: Antonio Sanabria (Torino, €10.2 million)
Real Madrid
In: n/a
Out: Takefusa Kubo (Getafe, loan), Luka Jovic (Eintracht Frankfurt, loan)
Real Sociedad
In: Carlos Fernández (Sevilla, €9.1 million)
Out: Willian José (Wolves, loan)
Sevilla
In: Papu Gomez (Atalanta, €6.25m)
Out: Felipe Carballo (Nacional, free), Eliseo Falcon (Marbella, free), Carlos Fernández (Real Sociedad, €9.1 million), Oussama Idrissi (Ajax, loan)
Valencia
In: William De Camargo (Leganes, loan), Fadiga Ouattara (Lille, loan), Patrick Cutrone (Wolves, loan), Ferro (Benfica, loan)
Out: Ruben Sobrino (Cadiz, loan)
Valladolid
In: Lucas Olaza (Boca Juniors, loan)
Out: n/a
Villarreal
In: Etienne Capoue (Watford, €2.2 million), Jack Harper (Getafe, loan)
Out: Soufiane Chakla (Getafe, loan)