Michael A. Bonarti serves as Executive at AUTOMATIC DATA PROCESSING INC, where they oversee executive responsibilities. Since joining the company, Michael A. Bonarti has executed 136 insider transactions totaling $56.3M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 12, 2025 involved selling 117 shares valued at $31.1K.
Michael A. Bonarti currently holds 80,414.44 shares of AUTOMATIC DATA PROCESSING INC (ADP), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Michael A. Bonarti has been a net seller of ADP stock. They have purchased $0 and sold $56.3M worth of shares.
Michael A. Bonarti's most recent insider trade was on Dec 12, 2025, when they sold 117 shares at $266.10 per share.
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| $298.43 |
| Discretionary |
| Sep 2, 2025 | ADP | $2.7M | Payment | 9,030.94 | $304.05 | Discretionary |
| Sep 1, 2025 | ADP | $0 | Award | 3,817 | $N/A | Discretionary |
| Aug 6, 2025 | ADP | $0 | Award | 14,201.78 | $N/A | Discretionary |
| Sep 9, 2024 | ADP | $1.0M | Sale | 3,852 | $269.70 | Planned |
| Sep 3, 2024 | ADP | $2.2M | Payment | 8,013 | $275.91 | Discretionary |
| Sep 1, 2024 | ADP | $0 | Award | 3,823 | $N/A | Discretionary |
| Aug 26, 2024 | ADP | $4.5M | Option Exercise | 26,442 | $169.84 | Planned |
| Aug 26, 2024 | ADP | $1.1M | Sale | 3,940 | $271.42 | Planned |
| Aug 26, 2024 | ADP | $6.1M | Sale | 22,502 | $270.88 | Planned |
| Aug 23, 2024 | ADP | $2.2M | Sale | 7,984 | $270.15 | Planned |
| Aug 23, 2024 | ADP | $1.4M | Option Exercise | 7,984 | $169.84 | Planned |
| Aug 7, 2024 | ADP | $0 | Award | 13,372.69 | $N/A | Discretionary |
| Feb 6, 2024 | ADP | $7.3M | Sale | 29,085 | $250.00 | Planned |
| Feb 6, 2024 | ADP | $4.0M | Option Exercise | 29,085 | $138.53 | Planned |
| Dec 11, 2023 | ADP | $25.4K | Payment | 109 | $233.29 | Discretionary |
| Sep 5, 2023 | ADP | $1.3M | Sale | 5,093 | $253.90 | Discretionary |
| Sep 1, 2023 | ADP | $2.8M | Payment | 11,006 | $255.75 | Discretionary |
| Sep 1, 2023 | ADP | $0 | Award | 3,631 | $N/A | Discretionary |
| Aug 3, 2023 | ADP | $0 | Award | 20,585.74 | $N/A | Discretionary |
| Jul 27, 2023 | ADP | $1.8M | Sale | 7,049 | $254.75 | Planned |
| Jul 27, 2023 | ADP | $1.0M | Option Exercise | 7,049 | $146.75 | Planned |
| Sep 2, 2022 | ADP | $890.9K | Sale | 3,623 | $245.90 | Discretionary |
| Sep 1, 2022 | ADP | $0 | Award | 3,557 | $N/A | Discretionary |
| Sep 1, 2022 | ADP | $1.7M | Payment | 7,033 | $245.96 | Discretionary |
| Aug 3, 2022 | ADP | $0 | Award | 14,278.74 | $N/A | Discretionary |
| Jul 1, 2022 | ADP | $115.4K | Payment | 541 | $213.23 | Discretionary |
| Jun 30, 2022 | ADP | $241.8K | Payment | 1,151 | $210.04 | Discretionary |
| Dec 1, 2021 | ADP | $571.2K | Sale | 2,500 | $228.47 | Discretionary |