Attachment C Notification and Public Disclosure Model for Transactions by Persons Discharging Managerial Responsibilities, and Persons Closely Associated with Them 1 Information about the person discharging managerial responsibilities a) Name Giovanni Caturano 2 Reason for notification a) Position/qualification Director - Innovation & Communication Director Person Discharging Managerial Responsibilities b) Initial notification/amendment Initial notification 3 Information about the issuer a) Name Mare Engineering Group S.p.A. b) LEI 815600DD12C02189EA28 4 Information about 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 2025-2027 Stock Option Plan" 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 146,300 d) Aggregated information - aggregated volume - price 146,300 €0.00 e) Date of the transaction 08/07/2026 f) Venue of the transaction Outside a regulated market (Over-The-Counter / Internal Company Agreement)