CADELER A/S: REPORTING ON TRANSACTIONS IN CADELER A/S SHARES BY PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES AND PERSONS CLOSELY ASSOCIATED WITH THEM

Copenhagen, 10 June 2026: Cadeler A/S (“Cadeler”) has received notification pursuant to article 19 of the Market Abuse Regulation (EU) no. 596/2014 of the below transaction related to shares in Cadeler made by persons discharging managerial responsibilities in Cadeler and/or persons closely associated with them.

Niki Invest ApS, a person closely associated with Ditlev Wedell-Wedellsborg, a member of Cadeler’s Board of Directors, has made the transaction described in the attached notification on the date set out therein.

Please see the attached file for further details.

For further information, please contact:

Mikkel Gleerup CEO, Cadeler +45 3246 3102 mikkel.gleerup@cadeler.com

Alexander Simmonds EVP & CLO, Cadeler +44 7376 174172 Alexander.simmonds@cadeler.com

About Cadeler A/S: Cadeler A/S (Cadeler) is a pure-play offshore wind installation partner and a global leader in offshore wind turbine transport and installation. The company owns and operates the industry’s largest fleet of jack-up offshore wind installation vessels and is expanding its capabilities into full-scope foundation transport and installation, as well as operations & maintenance. With its modern fleet and depth of expertise across onshore and offshore operations, Cadeler supports the safe, efficient and reliable delivery of offshore wind projects worldwide. Cadeler is listed on the New York Stock Exchange (ticker: CDLR) and the Oslo Stock Exchange (ticker: CADLR).

For more information, please visit www.cadeler.com