The Annual Meeting of the Shareholders of Community Financial System, Inc. (the ‘‘Company’’) will be held virtually on Wednesday, May 20, 2026 at 12:00 p.m. Eastern Daylight Time.
Link: www.virtualshareholdermeeting.com/CBU2026
The Shareholders of record at the close of business on March 23, 2026 are entitled to notice of, and to vote at, the Annual
Meeting or any adjournment or postponement thereof.
Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to be Held on May 20,
2026.
- The Company uses the ‘‘notice and access’’ delivery method which allows the Company to furnish proxy materials
(the Proxy Statement, Form 10-K, and Annual Report) electronically via the Internet.
- If you received a Notice of Internet Availability of Proxy Materials by mail, you will not receive a printed copy of the
proxy materials in the mail unless you specifically requested them.
- The Notice of Internet Availability of Proxy Materials contains instructions on how you can access the proxy materials
on the Internet, as well as instructions on obtaining a paper copy of the proxy materials.
Whether or not you plan to attend the Annual Meeting virtually, please submit your proxy promptly so that your shares
will be voted as you desire.