A Form 4 filed with the SEC on August 24, 2026, disclosed that Brian L. Michaud, Executive Vice President at Automatic Data Processing Inc (NASDAQ:ADP), sold 120 shares of common stock on August 21, 2026.

Key Highlights

  • Reporting person: Brian L. Michaud, Executive Vice President at Automatic Data Processing Inc
  • Transaction: 120 shares of common stock disposed of (transaction code S) on August 21, 2026
  • Sale price: $279.7 per share
  • Remaining holdings: 18,441.5155 shares of common stock held directly following the transaction
  • Rule 10b5-1 plan: The sale was made pursuant to a Rule 10b5-1 trading plan adopted by Michaud in September 2025

Michaud's Share Sale Details and Rule 10b5-1 Plan

According to the filing, Brian L. Michaud, identified as an Executive Vice President of Automatic Data Processing Inc, disposed of 120 shares of the company's common stock on August 21, 2026, at a price of $279.7 per share. The transaction is recorded under transaction code S, indicating an open-market sale. The form was signed by Michael A. Bonarti under a power of attorney on file and filed on August 24, 2026.

The filing notes that the transaction was carried out under a pre-arranged Rule 10b5-1 trading plan. Specifically, Explanation of Response footnote 1 states: "The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in September 2025." Following the reported sale, Michaud's direct beneficial ownership stood at 18,441.5155 shares of common stock, according to the filing.

No derivative securities transactions were reported in Table II of the form. The filing was made by one reporting person, and Michaud's address is listed as One ADP Boulevard, Roseland, New Jersey 07068.

What Was Disclosed

The Form 4 disclosed a single open-market sale of 120 shares of Automatic Data Processing Inc common stock by Executive Vice President Brian L. Michaud on August 21, 2026, at $279.7 per share, executed under a Rule 10b5-1 plan adopted in September 2025.