According to VoetbalPrimeur, Brazilian player Marcos Leonardo was the most expensive transfer of the transfer period, with Ajax signing him for nearly twenty million euros. This move narrowly misses the top five most expensive signings in Ajax's history. PSV also splashed out on several players, with the transfers of Kodai Sano, Sami Ouaissa, and Sven Mijnans costing a total of thirty-seven million euros. The top five most expensive incoming transfers in the Eredivisie for the summer transfer window are as follows:
- Marcos Leonardo (Al-Hilal to Ajax) for 19.9 million euros
- Kodai Sano (NEC to PSV) for 15 million euros
- Sven Mijnans (AZ to PSV) for 13 million euros
- Caio Henrique (AS Monaco to Ajax) for 10.5 million euros
- Sami Ouaissa (NEC to PSV) for 9 million euros
The transfer figures are sourced from Transfermarkt.nl.