Insider Transaction Report

Eric Stickels, a director at Community Financial System, Inc., reported a transaction on March 16, 2026. He acquired 250 shares of common stock through the settlement of phantom stock units. These units, part of the 2022 Long-Term Incentive Plan, represent the economic equivalent of common stock and are settled in shares or cash. The settlement resulted in Stickels holding 33,592 shares of common stock post-transaction. Additionally, 0.9119 shares were settled in cash at $57.42 per share. The report also notes dividend reinvestment features within the plan, with phantom stock units acquired on July 10, 2025, October 10, 2025, and January 12, 2026.