Form 4 Filing for Michael A. Bonarti at Automatic Data Processing Inc.

This filing reports transactions made by Michael A. Bonarti, Corporate Vice President at Automatic Data Processing Inc. On September 1, 2026, Bonarti acquired 5,076 shares of Common Stock under a restricted stock unit grant, valued at $0.00 per share, with the units vesting over three years. Following this acquisition, his total direct ownership stands at 97,063.279 shares. Additionally, on the same date, Bonarti disposed of 7,726.947 shares of Common Stock at a price of $283.49 per share. This transaction resulted in a decrease in his direct holdings, leaving him with 89,336.332 shares post-transaction. The report was signed on September 3, 2026.