Community Bank System, Inc. (the Company) announced two senior management changes. Joseph F. Serbun, President, Retail Banking, of the Company and its wholly-owned subsidiary, Community Bank, N.A. (the Bank), has decided to retire after more than 14 years of service. Serbun will retire from his position effective as of September 30, 2022.

In addition, the Company announced that it has promoted Dimitar Karaivanov to Executive Vice President and Chief Operating Officer of the Company and the Bank effective October 1, 2022. Karaivanov has served as Executive Vice President of Financial Services and Corporate Development since joining the Company in June 2021. In his role as Chief Operating Officer, Karaivanov will have oversight responsibilities for all banking, wealth management, employee benefit services, and insurance operations and related business activities.