Registration by the court of amendments to the By-laws of mBank S.A.

Registration by the court of amendments to the By-laws of mBank S.A. The Management Board of mBank S.A. (the “Bank”) hereby informs that on 27 April 2026 the Bank received a decision of the District Court for the Capital City of Warsaw in Warsaw, 13th Commercial Division of the National Court Register, dated 27 April 2026, pursuant to which the amendments to the Bank’s By-laws resulting from Resolution No. 26 adopted by the 39th Ordinary General Meeting of Shareholders of mBank S.A. on 31 March 2026 were registered. The registered amendments to the Bank’s By-laws include, inter alia, an amendment to § 34 concerning the amount of the share capital and the total number of votes. The Bank informed about these changes in current report No. 38/2025. The amendment to § 34 of the By-laws merely reflects the changes described in report No. 38/2025. Following the registration of the shares in the securities accounts of entitled persons, the share capital of the Bank amounts to PLN 170,103,364 and is divided into 42,514,841 ordinary bearer shares and 11,000 registered ordinary shares, each with a nominal value of PLN 4. Each share carries one vote at the General Meeting of Shareholders of the Bank. The total number of votes resulting from all shares of the Bank amounts to 42,525,841. The registration concerns the following amendments to the Bank’s By-laws: 1. Amendment to § 6 section 1 item 9) by giving it the following wording: “9) taking into deposit valuables and securities,” 2. Amendment to § 6 section 2 item 14) by giving it the following wording: “14) issuing electronic identification means within the meaning of trust services regulations,” 3. Amendment to § 34 by giving it the following wording: “The share capital amounts to PLN 170.103.364 (one hundred seventy million one hundred three thousand three hundred sixty four) and is divided into 42.525.841 (forty two million five hundred twenty five thousand eight hundred forty one) registered and bearer shares with a nominal value of PLN 4 (four) per share.” A consolidated text of the By-laws incorporating the above amendments is attached to this report.