Here are all the transfers completed by Serie A clubs in the January transfer window.
Atalanta
In: –
Out: Zortea (d, Sassuolo), Malinovskyi (m, Marseille)
Bologna
In: Kyriakopoulos (d, Sassuolo)
Out: –
Cremonese
In: Benassi (m, Fiorentina), A. Ferrari (d, Sampdoria), Galdames (m, Genoa)
Out: Baez (a, Frosinone)
Empoli
In: Caputo (a, Sampdoria)
Out: Bajrami (m, Sassuolo), Lammers (a, Sampdoria), Crociata (m, Cittadella), Ekong (a, Perugia)
Fiorentina
In: Brekalo (a, Wolfsburg), Sirigu (g, Napoli), Sabiri (m, remains on loan at Sampdoria until the end of the season)
Out: Gollini (g, Napoli), Benassi (m, Cremonese), Maleh (m, Lecce), Zurkoswki (m, Spezia)
Inter
In: –
Out: F. Carboni (d, Monza), S. Esposito (m, Bari)
Juventus
In: –
Out: McKennie (m, Leeds)
Lazio
In: Pellegrini (d, Juventus)
Out: Kamenovic (d, Sparta Prague)
Lecce
In: Ceccaroni (d, Venezia), Maleh (m, Fiorentina), Cassandro (d, Cittadella), Kljun (a, Tabor)
Out: –
Milan
In: Devis Vasquez (g, Club Guaraní)
Out: –
Monza
In: F. Carboni (d, Inter)
Out: Marrone (m, Pordenone)
Napoli
In: Bereszynski (d, Sampdoria), Gollini (g, Fiorentina)
Out: Sirigu (g, Fiorentina), Zanoli (d, Sampdoria), Contini (g, Reggina)
Roma
In: Llorente (d, Leeds), Solbakken (a, Bodø/Glimt)
Out: Shomurodov (a, Spezia), Vina (d, Bournemouth)
Salernitana
In: Crnigoj (m, Venezia), Troost-Ekong (d, Watford), Nicolussi Caviglia (m, Südtirol, via Juventus), Ochoa (g, América)
Out: Capezzi (m, Perugia)
Sampdoria
In: Gunter (d, Verona), Cuisance (m, Venezia), Lammers (a, Empoli), Nuytinck (d, Udinese), Zanoli (d, Napoli), Turk (g, Reggiana), Ilkhan (m, Torino)
Out: Verre (m, Palermo), Caputo (a, Empoli), A. Ferrari (d, Cremonese), Bereszynski (d, Napoli), Villar (m, Getafe), Sabiri (m, Fiorentina remains on loan until the end of the season)
Sassuolo
In: Zortea (d, Atalanta), Bajrami (m, Empoli)
Out: Traorè (m, Bournemouth), Ayhan (d, Galatasaray)
Spezia
In: Shomurodov (a, Roma), Wisniewski (d, Venezia), Marchetti (g, free), Esposito (m, Spal), Joao Moutinho (d, Orlando City), Zurkoswki (m, Fiorentina), Cipot (m, NS Mura), Krollis (a, Valmiera)
Out: Kiwior (d, Arsenal), Sher (m, Groningen), Gravillon (d, Reims)
Torino
In: Ilic (m, Verona),
Out: Lukic (m, Fulham), Edera (a, Pordenone), Garbett (m, Nac Breda), Ilkhan (m, Sampdoria)
Udinese
In: Thauvin (a, free), Diawara (a, Genk), Matheus Martins (a, Fluminense, loan to Watford until June)
Out: Makengo (m, Lorient), Nuytinck (d, Udinese), Matheus Martins (a, Watford), Jajalo (m, Venezia)
Verona
In: Gaich (a, Cska Moscow), Duda (m, Koln), Ngonge (a, Groningen), Zeefuik (d, Hertha Berlin), Braaf (a, Borussia Dortmund)
Out: Gunter (d, Sampdoria)