Investor Presentation - Q2 2021

Appendix: mBank's share price performance Banking stocks gained since Autumn, but CHF-related risks still weigh on mBank mBank's index membership and weights mBank's share performance v. main indices (rebased to 100) – last 12 months as of 30.06.2021 172 mBank's share price 166 WIG30 WIG 30 1.658% 30.06.2020 230.0 160 MAX (25.06.2021) 346.6 154 7. +57.5% MWIG40 MWIG 40 6.001% MIN (30.10.2020) 115.5 148 30.06.2021 325.0 142 WIG WIG 1.189% +41.3% 136 WIG-Banks WIG banki 5.504% 130 +26.1% 124 WIG-ESG WIGESG 1.850% 118- 112 WIG-Poland WIG Poland 1.238% 106 100 94 ■ mBank has been listed on the Warsaw Stock Exchange since October 1992 ■ A strategic shareholder, Germany's Commerzbank, owns 69.28% of shares 88 82 76 70 64 ISIN Bloomberg PLBRE0000012 58 52 MBK PW 46 30.06.20 31.07.20 31.08.20 30.09.20 31.10.20 30.11.20 31.12.20 31.01.21 28.02.21 Number of shares issued 42 367 040 -mBank WIG-Banks Index 31.03.21 30.04.21 31.05.21 30.06.21 WIG-20 Index Source: WSE, Bloomberg (data as of 30.06.2021). Investor Presentation - Q2 2021 47

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