Item 5. Other Information

(a) In connection with his previously announced departure from Automatic Data Processing, Inc. (the “Company”) on March 31, 2025, John C. Ayala entered into a separation agreement and release (“agreement”), dated January 27, 2025. His departure constitutes a “Qualifying Termination” as defined under the Company’s Corporate Officer Severance Plan (the “Plan”) and the agreement sets forth the terms of his separation and release in accordance with the Plan. A copy of the separation agreement and release is filed as Exhibit 10.1 hereto and incorporated herein by reference.

(c) During the fiscal quarter ended December 31, 2024, none of the Company’s directors or executive officers adopted or terminated any contract, instruction or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement”.