Automatic Data Processing Inc (ADP) Insider Ownership

Historic Insider Ownership Trends

Data spanning the past 90 days through January 10, 2026 reveals that Automatic Data Processing's three principal insider shareholders consist of Corporate Vice President Michael A Bonarti (80.41K shares), President & Ceo Maria Black (75.05K shares), Director John P Iii Jones (65.10K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Michael A Bonarti Corporate Vice President 80,414 15 Dec, 2025
Maria Black President & Ceo 75,052 06 Jan, 2026
John P Iii Jones 65,101 07 Nov, 2024
Sreenivasa Kutam Corp Vp 40,770 15 Dec, 2025
Carlos A Rodriguez 36,541 14 Nov, 2025
Donald Weinstein Corporate Vp 32,950 13 Jan, 2023
Michael C Eberhard Corporate Vice President 32,399 06 Sep, 2022
Richard T Clark 32,278 12 Nov, 2021
Deborah L Dyson Corp. Vp 26,663 06 Apr, 2022
Peter Bisson 22,769 14 Nov, 2025
Stuart Sackman Corp. Vp 22,645 05 Jan, 2022
Sandra S Wijnberg 20,505 14 Nov, 2025
William J Ready 19,821 07 Nov, 2024
John Ayala Corp. Vp 17,971 06 Jan, 2025
Don Mcguire Corp Vp 17,684 05 Sep, 2025
Joseph Desilva Executive Vp 17,458 05 Jan, 2026
Thomas J Lynch 16,987 14 Nov, 2025
Brian L. Michaud Executive Vp 16,442 05 Jan, 2026
Scott F Powers 14,572 14 Nov, 2025
Dermot J O'Brien Corp. Vp 13,622 10 Jun, 2021
Virginia Magliulo Executive Vp 13,593 03 Sep, 2025
David Kwon Corp Vp 11,993 08 Jan, 2026
David Foskett Corp. Vp 11,805 05 Jan, 2026
Francine S Katsoudas 11,634 14 Nov, 2025
Peter J Hadley Cfo 10,921 03 Sep, 2025
Christopher D'Ambrosio Corp. Vp 10,541 11 Sep, 2025
James T Sperduto Corp Vp 10,068 03 Nov, 2022
Nazzic S Keene 9,717 14 Nov, 2025
Kareem Rogers Corp. Vp 7,205 06 Sep, 2022
Paul Boland Corp. Vp 7,162 03 Sep, 2025
Linnie M Haynesworth 6,891 14 Nov, 2025
David Goeckeler 6,662 14 Nov, 2025
Laura G Brown Corp. Vp 6,016 04 Oct, 2022
Augusto J Blanchard Corp Vp 4,940 06 Sep, 2022
Jonathan S Lehberger Corp. Vp 4,488 03 Sep, 2025
Kathleen A Winters Corp. Vp 4,420 16 Apr, 2021
Brock Albinson Corp. Vp 4,025 05 Mar, 2024
Alexander Quevedo Corp Vp 3,860 06 Sep, 2022
Karen S Lynch 1,535 14 Nov, 2025
Robert Holmes Swan 1,453 14 Nov, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
06 Jan, 2026 David Kwon Common Stock A 1,137 $138.53 12,893 D M
06 Jan, 2026 David Kwon Common Stock D 900 $260.00 11,993 D S
05 Jan, 2026 Maria Black Common Stock D 294 $258.09 75,052 D S
05 Jan, 2026 Maria Black Common Stock D 71 $254.95 75,589 D S
05 Jan, 2026 Maria Black Common Stock D 51 $253.32 75,716 D S
05 Jan, 2026 Maria Black Common Stock D 56 $255.73 75,660 D S
05 Jan, 2026 Maria Black Common Stock D 98 $258.77 75,491 D S
05 Jan, 2026 Maria Black Common Stock D 145 $257.24 75,346 D S
02 Jan, 2026 Maria Black Common Stock D 435 $257.23 75,767 D F
02 Jan, 2026 Joseph Desilva Common Stock D 78 $0.00 17,458 D G
01 Jan, 2026 Maria Black Common Stock A 41 $244.37 76,202 D I
01 Jan, 2026 Brian L. Michaud Common Stock A 41 $244.37 16,442 D I
01 Jan, 2026 David Foskett Common Stock A 25 $244.37 11,805 D I
12 Dec, 2025 Michael A Bonarti Common Stock D 117 $266.10 80,414 D F
12 Dec, 2025 Michael A Bonarti - - 80,414 D
12 Dec, 2025 Sreenivasa Kutam Common Stock D 163 $266.10 40,770 D F
12 Dec, 2025 Brian L. Michaud Common Stock D 37 $266.10 16,401 D F
12 Dec, 2025 David Kwon Common Stock D 51 $266.10 11,756 D F
12 Nov, 2025 Sandra S Wijnberg Common Stock A 1,551 $0.00 20,505 D A
12 Nov, 2025 Thomas J Lynch Common Stock A 2,239 $0.00 16,987 D A