COMMUNITY FINANCIAL SYSTEM, INC. — Director's Dealing 2025

Mar 13, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMMUNITY FINANCIAL SYSTEM, INC. (CBU)
CIK: 0000723188
Period of Report: 2025-03-12

Reporting Person: SUTARIS JOSEPH E (EVP & Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-12	Common Stock	F	693.0287	—	Disposed	14350.9958	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	10984.19	Indirect

Footnotes

F1: Payment of tax liability associated with vesting of performance stock award.

F2: The number of shares reported herein acquired pursuant to Community Financial System, Inc.'s 401(k) Plan and are based on a current plan statement.