Form 4 Filing for Community Financial System, Inc.

This filing details a transaction by Brenda M. Hall, a director at Community Financial System, Inc. On August 24, 2026, Ms. Hall acquired 476 shares of Common Stock at a weighted average price of $63.5946 per share, with individual transaction prices ranging from $63.1899 to $63.5989. This purchase brings her total direct ownership of Common Stock to 515 shares. The filing also notes that Ms. Hall holds 1228.5864 phantom stock units, which are equivalent to common stock and were acquired as dividend equivalents under the company's Long-Term Incentive Plan. These units will be settled in common stock at a future date. The transaction was reported on Form 4, indicating a change in beneficial ownership.