Bayer Leverkusen Dominate Summer Transfer Activity Across Five Leagues

Bundesliga

Bayer Leverkusen have been the undisputed engine room of this summer’s transfer window, and the scale of their business is striking. The headline arrival is Miguel Gutiérrez, who joined from Napoli in early August in a confirmed transfer — a significant signing that brings proven Serie A experience to the BayArena. Leverkusen also brought in F. Medina from Marseille around the same time, adding further depth to their squad. Earlier in the window, Luca Erlein arrived from 1899 Hoffenheim on a permanent basis — though he was almost immediately sent out on loan to Energie Cottbus, suggesting he is being developed rather than integrated into the first-team picture straight away. The overall pattern at Leverkusen is one of aggressive squad reshaping: recruiting in areas of need while systematically trimming the roster through a combination of permanent sales and loans.

Serie A

Juventus were among the beneficiaries of Leverkusen’s clearout, securing the permanent transfer of Kerim-Sam Alajbegović from the German club at the turn of August. The deal, confirmed as a transfer, represents a notable addition for the Turin side. Napoli, meanwhile, let Miguel Gutiérrez leave on a permanent basis, continuing what appears to be a period of squad transition at the Stadio Maradona.

Ligue 1

Marseille parted ways with F. Medina in a permanent transfer to Leverkusen — a departure that points to ongoing rebuilding at the Vélodrome. Lorient, battling to establish themselves back in the top flight, received a boost with the loan arrival of N. Mbamba from Leverkusen in early August. Loans of this type from a club of Leverkusen’s standing can be genuinely impactful for a side with Lorient’s resources.

La Liga

Two Spanish clubs picked up players from the Leverkusen exodus. A. Faye joined Celta Vigo on loan in early August, offering the Galician club cover as they navigate the early weeks of the season. A. Sarco left Leverkusen for Sporting Gijón on a permanent transfer in July — though it is worth noting that Sporting Gijón currently compete in the Segunda División rather than La Liga itself, so the move represents a step down in level for the player.

Eredivisie

AZ Alkmaar completed the permanent signing of A. Natali from Leverkusen in late July, rounding out a busy spell of Dutch business. For AZ, landing a player with Bundesliga experience on a permanent deal will be seen as a solid piece of recruitment ahead of their European commitments this season.

The broader picture from this window is impossible to miss: Leverkusen have conducted more confirmed moves than any other club in the data, offloading fringe players across five countries while selectively targeting reinforcements. Whether this represents a squad that is becoming leaner and more focused — or one still searching for its final shape — will become clearer as the season progresses. Roda in the Eredivisie also added depth with the loan arrival of J. Mensah from Leverkusen on 11 August, the most recent confirmed move in the dataset.

Written by Arlind

Covers daily football news for MatchdayValue — results, standings, and the stories shaping the top five European leagues and the continental competitions.