Exhibit 99.1 Report to Shareholders for the First Quarter, 2023 www.cibc.com February 24, 2023 Report of the President and Chief Executive Officer Overview of results CIBC today announced its financial results for the first quarter ended January 31, 2023. First quarter highlights YoY QoQ Q1/23 Q1/22 Q4/22 Variance Varianc e Revenue $5,927 million $5,498 million $5,388 million +8% +10% Reported Net Income $432 million $1,869 million $1,185 million -77% -64% Adjusted Net Income (1) $1,841 million $1,894 milli ...