Notice of filing

Information Document regarding most significant transaction with related parties

Merger by incorporation of Mediobanca S.p.A. into Banca Monte dei Paschi di Siena S.p.A. The Information Document drawn up in accordance with Article 5 of  Consob Regulation no. 17221/2010 regarding transactions with related parties, with reference to the merger by incorporation of Mediobanca S.p.A. into Banca Monte dei Paschi di Siena S.p.A., is now available at the company’s head office, and on the following websites: www.emarketstorage.it and www.mediobanca.com (Investor Relations/Merger of MB into MPS).

Milan, 17 March 2026