Automatic Data Processing Inc. (ADP) — Form 144: Proposed sale of shares

Officer Michael A Bonarti of Automatic Data Processing Inc. proposed to sell 7,487 shares of common stock with an aggregate market value of $2,246,100. The sale is scheduled for November 2, 2026, through Fidelity Brokerage Services LLC. The shares were originally acquired through a restricted stock vesting on September 1, 2026. The transaction was made under a trading plan adopted on September 3, 2025.