Attachment C Notification and Public Disclosure Model of Transactions Carried Out by Persons Discharging Managerial Responsibilities and Persons Closely Associated with Them 1 Information Relating to the Relevant Person a) Name Marco Bellucci 2 Reason for Notification a) Position/Qualification Chairman of the Board of Directors - Chairman Relevant Person b) Initial Notification/Amendment Initial Notification 3 Information Relating to the Issuer a) Name Mare Engineering Group S.p.A. b) LEI 815600DD12C02189EA28 4 Information Relating to the Transaction: section to be repeated for i) each class of instrument; ii) each type of transaction; iii) each date; and iv) each venue where the transactions occurred a) Description of the financial instrument, type of instrument Identification code Ordinary Share Options linked to the "Mare Group Stock Option Plan 2025-2027" IT0005588626 b) Nature of the transaction Acceptance and simultaneous free grant of Stock Options c) Price(s) and volume(s) Price €0.00 (Free Grant) and Volume 170,700 d) Aggregated information - aggregated volume - price 170,700 €0.00 e) Date of the transaction 08/07/2026 f) Venue of the transaction Outside a trading venue (Over-The-Counter / Internal Company Agreement)