Top 10 most expensive Serie A transfers in 2025 summer window

Milan completed the two most expensive summer signings in Serie A , but Juventus, Roma, Fiorentina, Napoli and Atalanta also feature in the top 10.

The Serie A transfer window ended on Monday, September 1, 2025, with some exciting deals for the top Italian clubs and beyond.

PHILADELPHIA, PENNSYLVANIA – JUNE 24: Christopher Nkunku #18 of Chelsea FC looks on during the FIFA Club World Cup 2025 group D match between Esperance de Tunis and Chelsea FC at Lincoln Financial Field on June 24, 2025 in Philadelphia, Pennsylvania. (Photo by Francois Nel/Getty Images)

Milan were the highest spenders in the latest transfer window, having invested more than €160m in new signings.

As reported by Transfermarkt, the Rossoneri also completed the two most expensive summer signings with Christopher Nkunku (€37m) and Ardon Jashari (€36m).

They have another player in the top 10, Samuele Ricci, who moved to San Siro from Torino for €23m, the same fee paid by Inter for Ange-Yoan Bonny and Luis Henrique.

DORTMUND, GERMANY – AUGUST 10: Waldemar Anton of Borussia Dortmund battles for possession with Francisco Conceiçao of Juventus during the pre-season friendly match between Borussia Dortmund and Juventus FC at Signal Iduna Park on August 10, 2025 in Dortmund, Germany. (Photo by Lars Baron/Getty Images)

Juventus’ Francisco Conceiçao was the third most expensive summer signing as the Bianconeri made his loan move permanent from Porto FC for €32m.

Roma’s Neil El Aynaoui and Atalanta’s Nikola Krstovic are also among the top 10 most expensive deals of the summer in Serie A , and the same is true of Italy and Fiorentina striker Roberto Piccoli.

Christopher Nkunku – Milan €37m

Ardon Jashari – Milan €36m

Francisco Conceiçao – Juventus €32m

Sam Beukema – Napoli €31m

Noa Lang – Napoli €25m

Wesley – Roma €25m

Nikola Krstovic – Atalanta €25m

Roberto Piccoli – Fiorentina €25m

Neil El Aynaoui – Roma €23.5m

Samuele Ricci – Milan €23m