Financial Results

• • • Advancing our Digital First strategy Continuing to deliver on our Digital First agenda Drove a successful conversion of the Bank of the West customer accounts and systems to BMO, with strong early results on digital adoption and engagement Launched a new mobile app in Canada, converging with our award-winning desktop platform driving improved customer experience and efficiency Announced a partnership with Modern Treasury in the U.S. to help commercial clients seamlessly manage and track their complex, high volume payment flows Added new seamless and efficient functionality for U.S. customers enabling full balance transfer functionality from an external bank to their new BMO account Driving digital engagement Active Digital Users, Retail (000)1 3,598 +8% 3,898 Q4'22 Q4'23 Self-Serve Transaction (%)² Digital Sales Growth (%)³ 91% +41% Active Digital Users, Commercial Banking (000)4 241 +8% 261 Recognized for industry leadership Ranked first in customer satisfaction with online banking in the J.D. Power5 2023 Canada Online Banking Satisfaction Study Awarded the 2023 BAI Global Innovation Award for Innovation in Retail Customer Experience for BMO New to Canada pre-arrival account opening Recognized for artificial intelligence and advanced analytics by Datos Insights, with the 2023 Impact Innovation Award in Cash Management and Payments Awarded the Outstanding Machine Learning Initiative from Digital Banker's 2023 Global Retail Banking Innovation Awards Data does not include Bank of the West Q4'22 Q4'23 IDIOVER BAI Outing Machine 1 Active digital users is number of retail deposit customers in North America that logged into online or mobile in the last 90 days 2 Self-serve transactions are transactions that occur in online, mobile, ATM, telephone banking; August 2023 October 2023 3 Digital sales is 12 month rolling average for the 12 months preceding the end of the fiscal quarter and include chequing, savings, credit card, loans, mortgage, overdraft (CAD) and CD, MM (US); % growth is Q4'23 over Q4'22 4 OLBB clients in North American commercial, corporate and business banking 5 For more information, refer to www.jdpower.com/business BMOM Strategic Highlights December 1, 2023 33

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