Form 4 Filing for Stephen J. Guillaume

Stephen J. Guillaume, EXECUTIVE VICE PRESIDENT of CITIZENS FINANCIAL SERVICES INC, acquired 311 shares of COMMON CLASS stock on June 25, 2026. The transaction was made at a price of $0.0 per share, and post-transaction, Guillaume holds 5029.3514 shares. These stock awards were granted under the CITIZENS FINANCAL SERVICES, INC. 2026 EQUITY INCENTIVE PLAN and will vest in three equal annual installments starting on June 25, 2027. The filing was signed on June 26, 2026, by Gina Marie Boor for Stephen J. Guillaume under a power of attorney.