Michael A. Bonarti

Companies

• Automatic Data ProcessingStaff Vice President Mar 23, 2010 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Automatic Data Processing ADP89,336 shares²$25.6M at $286.17Sep 1, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 1, 2026Shares withheld for tax 7,727 shares at $283.49 of Automatic Data Processing²
• Sep 1, 2026Granted 5,076 shares of Automatic Data Processing²
• Aug 5, 2026Granted 11,573 shares of Automatic Data Processing³
• Dec 12, 2025Shares withheld for tax 117 shares at $266.10 of Automatic Data Processing⁴
• Sep 9, 2025Sold 8,728 shares at $298.43 of Automatic Data Processing⁵
• Sep 2, 2025Shares withheld for tax 9,031 shares at $304.05 of Automatic Data Processing⁶
• Sep 1, 2025Granted 3,817 shares of Automatic Data Processing⁶
• Aug 6, 2025Granted 14,202 shares of Automatic Data Processing⁷
• Feb 3, 2025Sold 30,131 shares at $303.30 of Automatic Data Processing⁸
• Feb 3, 2025Exercised options 9,696 shares at $138.53 of Automatic Data Processing⁸
• Feb 3, 2025Exercised options 20,435 shares at $206.86 of Automatic Data Processing⁸
• Dec 13, 2024Shares withheld for tax 112 shares at $296.76 of Automatic Data Processing⁹
• Sep 9, 2024Sold 3,852 shares at $269.70 of Automatic Data Processing¹⁰
• Sep 3, 2024Shares withheld for tax 8,013 shares at $275.91 of Automatic Data Processing¹¹
• Sep 1, 2024Granted 3,823 shares of Automatic Data Processing¹¹
• Aug 26, 2024Sold 22,502 shares at $270.88 of Automatic Data Processing¹²
• Aug 26, 2024Sold 3,940 shares at $271.42 of Automatic Data Processing¹²
• Aug 26, 2024Exercised options 26,442 shares at $169.84 of Automatic Data Processing¹²
• Aug 23, 2024Sold 7,984 shares at $270.15 of Automatic Data Processing¹²
• Aug 23, 2024Exercised options 7,984 shares at $169.84 of Automatic Data Processing¹²
• Aug 7, 2024Granted 13,373 shares of Automatic Data Processing¹³
• Feb 6, 2024Sold 29,085 shares at $250.00 of Automatic Data Processing¹⁴
• Feb 6, 2024Exercised options 29,085 shares at $138.53 of Automatic Data Processing¹⁴
• Dec 11, 2023Shares withheld for tax 109 shares at $233.29 of Automatic Data Processing¹⁵
• Sep 5, 2023Sold 5,093 shares at $253.90 of Automatic Data Processing¹⁶