Exhibit 99.1 Report to Shareholders for the Third Quarter, 2025 www.cibc.com August 28, 2025 Report of the President and Chief Executive Officer Overview of results CIBC today announced its financial results for the third quarter ended July 31, 2025. Third quarter highlights | | Q3/25 | Q3/24 | Q2/25 | YoY | QoQ | | --- | --- | --- | --- | --- | --- | | | | | | Variance | Variance | | Revenue | $7,254 million |$6,604 million | $7,022 million | +10$2,096 million | $1,795 mi ...