Automatic Data Processing ADP Insider Ownership

NASDAQ ADP
$277.62 -5.91 (-2.08%)
At close: Sep 4, 2026 · 4:00 PM EDT

Insider Holdings by Owner

806.66K Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
0.203%
▲+0.018% pp QoQ
Shares Held by Insiders
822.17K
filed for Sep 2026
▲+9.44% QoQ
Shares Outstanding
404.70Mn
404,700,000 shares
Direct Holdings
806.37K
Indirect: 15.80K
Net Shares Traded (QoQ)
+70.91K
net buying in Sep 2026
Insiders Holding Shares
39
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 05, 2026, the three largest insider holders of ADP are Michael A Bonarti (Corporate Vice President, 89.34K shares), Maria Black (President Ceo, 80.62K shares), John P Iii Jones (Director, 65.10K shares).

Form 4 Holdings

Insiders Holding ADP

Insiders 39
Shares held 806.66K
Of outstanding 0.199%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Michael A Bonarti Corporate Vice President 89,336 0 89,336 11.1% 03 Sep, 2026
2 Maria Black President Ceo 80,624 0 80,624 10.0% 03 Sep, 2026
3 John P Iii Jones Director 65,101 0 65,101 8.1% 07 Nov, 2024
4 Sreenivasa Kutam Corp Vp 49,699 0 49,699 6.2% 03 Sep, 2026
5 Carlos A Rodriguez Executive Chair 34,178 0 34,178 4.2% 03 Sep, 2026
6 Donald Weinstein Corporate Vp 32,950 0 32,950 4.1% 13 Jan, 2023
7 Michael C Eberhard Corporate Vice President 32,399 0 32,399 4.0% 06 Sep, 2022
8 Richard T Clark Director 32,278 0 32,278 4.0% 11 Nov, 2021
9 Deborah L Dyson Corp. Vp 26,663 0 26,663 3.3% 06 Apr, 2022
10 Peter Bisson Director 22,769 0 22,769 2.8% 14 Nov, 2025
11 Stuart Sackman Corp. Vp 22,645 0 22,645 2.8% 05 Jan, 2022
12 Sandra S Wijnberg Director 20,505 0 20,505 2.5% 14 Nov, 2025
13 William J Ready Director 19,821 0 19,821 2.5% 07 Nov, 2024
14 Brian L. Michaud Executive Vp 18,843 0 18,843 2.3% 03 Sep, 2026
15 Joseph Desilva Executive Vp 18,824 0 18,824 2.3% 04 Sep, 2026
16 John Ayala Corp. Vp 17,971 0 17,971 2.2% 06 Jan, 2025
17 Virginia Magliulo Executive Vp 17,792 0 17,792 2.2% 03 Sep, 2026
18 Don Mcguire Corp Vp 17,684 0 17,684 2.2% 05 Sep, 2025
19 Peter J Hadley Cfo 17,213 0 17,213 2.1% 03 Sep, 2026
20 Thomas J Lynch Director 16,987 0 16,987 2.1% 14 Nov, 2025
21 Scott F Powers Director 14,572 0 14,572 1.8% 14 Nov, 2025
22 David Foskett Corp. Vp 14,146 0 14,146 1.8% 03 Sep, 2026
23 David Kwon Corp Vp 12,986 0 12,986 1.6% 03 Sep, 2026
24 Paul Boland Corp. Vp 12,334 0 12,334 1.5% 03 Sep, 2026
25 Francine S Katsoudas Director 11,634 0 11,634 1.4% 14 Nov, 2025
26 Christopher D'Ambrosio Corp. Vp 9,928 0 9,928 1.2% 03 Sep, 2026
27 Nazzic S Keene Director 9,717 0 9,717 1.2% 14 Nov, 2025
28 James T Sperduto Corp Vp 8,375 0 8,375 1.0% 03 Nov, 2022
29 Kareem Rogers Corp. Vp 7,205 0 7,205 0.9% 06 Sep, 2022
30 Linnie M Haynesworth Director 6,891 0 6,891 0.9% 14 Nov, 2025
31 Samantha D Orihuela Chief Marketing Officer 6,454 296 6,750 0.8% 03 Sep, 2026
32 David Goeckeler Director 6,662 0 6,662 0.8% 14 Nov, 2025
33 Laura G Brown Corp. Vp 6,016 0 6,016 0.7% 04 Oct, 2022
34 Jonathan S Lehberger Corp. Vp 5,731 0 5,731 0.7% 03 Sep, 2026
35 Robert Holmes Swan Director 5,072 0 5,072 0.6% 11 May, 2026
36 Augusto J Blanchard Corp Vp 4,940 0 4,940 0.6% 06 Sep, 2022
37 Brock Albinson Corp. Vp 4,025 0 4,025 0.5% 05 Mar, 2024
38 Alexander Quevedo Corp Vp 3,860 0 3,860 0.5% 06 Sep, 2022
39 Karen S Lynch Director 1,535 0 1,535 0.2% 14 Nov, 2025

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

11,714 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
03 Sep, 2026 Joseph Desilva Executive Vp Disposed S 631 $282.87 $178.49K 18,824 Direct
21 Aug, 2026 Brian L. Michaud Executive Vp Disposed S 120 $279.70 $33.56K 18,442 Direct
20 Aug, 2026 David Kwon Corp Vp Acquired M 967 $169.84 $164.24K 13,991 Direct
20 Aug, 2026 David Kwon Corp Vp Disposed S 798 $280.00 $223.44K 13,193 Direct
20 Aug, 2026 David Kwon Corp Vp Disposed M 967 $169.84 $164.24K 0 Direct
05 Aug, 2026 Brian L. Michaud Executive Vp Acquired A 4,050 $0.00 $0 18,562 Direct
05 Aug, 2026 Jonathan S Lehberger Corp. Vp Acquired A 747 $0.00 $0 5,235 Direct
05 Aug, 2026 Christopher D'Ambrosio Corp. Vp Acquired A 2,601 $0.00 $0 10,970 Direct
05 Aug, 2026 Sreenivasa Kutam Corp Vp Acquired A 11,083 $0.00 $0 51,769 Direct
05 Aug, 2026 Carlos A Rodriguez Director Acquired A 24,922 $0.00 $0 47,650 Direct
05 Aug, 2026 David Kwon Corp Vp Acquired A 3,114 $0.00 $0 13,024 Direct
05 Aug, 2026 Joseph Desilva Executive Vp Acquired A 10,903 $0.00 $0 28,360 Direct
05 Aug, 2026 Michael A Bonarti Corporate Vice President Acquired A 11,573 $0.00 $0 91,987 Direct
05 Aug, 2026 Maria Black President Ceo Acquired A 44,859 $0.00 $0 119,961 Direct
05 Aug, 2026 Virginia Magliulo Executive Vp Acquired A 4,050 $0.00 $0 17,643 Direct
05 Aug, 2026 David Foskett Corp. Vp Acquired A 2,647 $0.00 $0 13,650 Direct
05 Aug, 2026 Peter J Hadley Cfo Acquired A 1,479 $0.00 $0 12,400 Direct
05 Aug, 2026 Paul Boland Corp. Vp Acquired A 4,672 $0.00 $0 11,833 Direct
31 Jul, 2026 David Kwon Corp Vp Acquired M 250 $138.53 $34.63K 9,910 Direct
31 Jul, 2026 David Kwon Corp Vp Disposed M 250 $138.53 $34.63K 1,137 Direct