Automatic Data Processing ADP Insider Ownership

NASDAQ ADP

$303.54 +7.53 (+2.54%)

At close: Nov 4, 2026 · 4:00 PM EST

The most recent Automatic Data Processing (ADP) insider transaction: Carlos A Rodriguez (Director) sold 537 shares worth about $161.11K on Nov 2, 2026, reported on Form 4 on Nov 3, 2026. So far in the quarter ending Dec 31, 2026, insiders were net sellers of 21.72K shares.

Updated Nov 4, 2026 Automatic Data Processing (ADP) stock price and overview

Insider Holdings by Owner

757.57K Shares

Michael A Bonarti81.85K10.8%

Maria Black80.62K10.6%

John P Iii Jones65.10K8.6%

Sreenivasa Kutam49.70K6.6%

Donald Weinstein32.95K4.3%

Other insiders (34)447.34K59.0%

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

0.160%

▲+0.019% pp QoQ

Shares Held by Insiders

644.02K

filed for Sep 2026

▲+13.34% QoQ

Shares Outstanding

402.30Mn

402,300,000 shares

Direct Holdings

629.91K

Indirect: 14.11K

Net Open-Market Trades

-43.69K

net sold · -$12.26Mn in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Open-Market Insider Trades

Bought Sold

Latest quarter —

Net over range —

Net-buying quarters —

Insider Ownership Summary

Updated Nov 4, 2026

Over the trailing 12 months, ADP insiders bought $745,695 worth of shares (3.62K shares) and sold $20.34 million worth (72.11K shares) in open-market trades.

A count shows one insider buying ADP stock on the open market over the past 12 months and 9 insiders selling.
Among ADP insiders, Robert Holmes Swan (Director) bought the most stock on the open market in the past 12 months: $745,695 (3.62K shares), most recently on May 7, 2026.
On the selling side, Maria Black (President & CEO) was the top open-market seller of Automatic Data Processing over the past 12 months, with $8.56 million sold (30.52K shares) and the latest sale on September 2, 2026.
The latest open-market trade in ADP stock by an insider was a sale of 11.3K shares for $3.39 million by Carlos A. Rodriguez (Director) on November 2, 2026.
Away from the open market, ADP insiders received 199.94K shares in stock awards, acquired 3.24K shares through option exercises and conversions, gave up 84.85K shares to cover taxes or exercise prices and gave away 78 shares as gifts over the last 12 months.
Per Business Quant data, Automatic Data Processing insiders hold 622.3K shares in total based on their latest Form 4 filings, up 9.52% from 568.21K shares at the end of Q2 2026 and up 11.19% from 559.69K shares at the end of Q3 2025.
By type of ownership, ADP insiders hold 97.73% of their shares directly (608.19K shares) and 2.27% indirectly (14.11K shares).
Business Quant counts 29 insiders with holdings in Automatic Data Processing stock, among the officers, directors and 10% owners who have filed a Form 4 in the past two years.
ADP's largest insider holders by reported holdings are Michael A. Bonarti (Corporate Vice President, 81.85K shares), Maria Black (President & CEO, 80.62K shares) and John P. Jones III (Director, 65.1K shares).
Michael A. Bonarti holds 13.15% of the combined insider position in Automatic Data Processing.
Institutional holders reported 88.08% of Automatic Data Processing's outstanding shares for Q2 2026; insiders' latest Form 4 filings put their stake at about 0.15%, and other investors, including the public, hold the remaining 11.77%.
Over the trailing 12 months, 25 insiders reported transactions in ADP stock across 72 Form 4 filings.
These insider figures for Automatic Data Processing are based on Form 4 filings through November 3, 2026.

Form 4 Holdings

Insiders Holding ADP

Insiders 39

Shares held 757.57K

Of outstanding 0.188%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Michael A Bonarti	Corporate Vice President	81,849	0	81,849	10.8%	03 Nov, 2026
2	Maria Black	President Ceo	80,624	0	80,624	10.6%	03 Sep, 2026
3	John P Iii Jones	Director	65,101	0	65,101	8.6%	07 Nov, 2024
4	Sreenivasa Kutam	Corp Vp	49,699	0	49,699	6.6%	03 Sep, 2026
5	Donald Weinstein	Corporate Vp	32,950	0	32,950	4.3%	13 Jan, 2023
6	Michael C Eberhard	Corporate Vice President	32,399	0	32,399	4.3%	06 Sep, 2022
7	Deborah L Dyson	Corp. Vp	26,663	0	26,663	3.5%	06 Apr, 2022
8	Carlos A Rodriguez	Executive Chair	22,873	0	22,873	3.0%	03 Nov, 2026
9	Peter Bisson	Director	22,769	0	22,769	3.0%	14 Nov, 2025
10	Stuart Sackman	Corp. Vp	22,645	0	22,645	3.0%	05 Jan, 2022
11	Sandra S Wijnberg	Director	20,505	0	20,505	2.7%	14 Nov, 2025
12	William J Ready	Director	19,821	0	19,821	2.6%	07 Nov, 2024
13	Brian L. Michaud	Executive Vp	18,843	0	18,843	2.5%	03 Sep, 2026
14	Joseph Desilva	Executive Vp	18,824	0	18,824	2.5%	04 Sep, 2026
15	John Ayala	Corp. Vp	17,971	0	17,971	2.4%	06 Jan, 2025
16	Don Mcguire	Corp Vp	17,684	0	17,684	2.3%	05 Sep, 2025
17	Peter J Hadley	Cfo	17,213	0	17,213	2.3%	03 Sep, 2026
18	Thomas J Lynch	Director	16,987	0	16,987	2.2%	14 Nov, 2025
19	Virginia Magliulo	Executive Vp	14,865	0	14,865	2.0%	02 Nov, 2026
20	Scott F Powers	Director	14,572	0	14,572	1.9%	14 Nov, 2025
21	David Foskett	Corp. Vp	14,146	0	14,146	1.9%	03 Sep, 2026
22	David Kwon	Corp Vp	12,986	0	12,986	1.7%	03 Sep, 2026
23	Paul Boland	Corp. Vp	12,334	0	12,334	1.6%	03 Sep, 2026
24	Francine S Katsoudas	Director	11,634	0	11,634	1.5%	14 Nov, 2025
25	Christopher D'Ambrosio	Corp. Vp	9,928	0	9,928	1.3%	03 Sep, 2026
26	Nazzic S Keene	Director	9,717	0	9,717	1.3%	14 Nov, 2025
27	James T Sperduto	Corp Vp	8,375	0	8,375	1.1%	03 Nov, 2022
28	Kareem Rogers	Corp. Vp	7,205	0	7,205	1.0%	06 Sep, 2022
29	Linnie M Haynesworth	Director	6,891	0	6,891	0.9%	14 Nov, 2025
30	Samantha D Orihuela	Chief Marketing Officer	6,454	296	6,750	0.9%	03 Sep, 2026
31	David Goeckeler	Director	6,662	0	6,662	0.9%	14 Nov, 2025
32	Laura G Brown	Corp. Vp	6,016	0	6,016	0.8%	04 Oct, 2022
33	Jonathan S Lehberger	Corp. Vp	5,731	0	5,731	0.8%	03 Sep, 2026
34	Robert Holmes Swan	Director	5,072	0	5,072	0.7%	11 May, 2026
35	Augusto J Blanchard	Corp Vp	4,940	0	4,940	0.7%	06 Sep, 2022
36	Vishwas Sugla	Chief Strategy Officer	4,900	0	4,900	0.6%	10 Sep, 2026
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

4,230 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
02 Nov, 2026	Carlos A Rodriguez	Director	Disposed S	537	$300.02	$161.11K	33,641	Direct
02 Nov, 2026	Michael A Bonarti	Corporate Vice President	Disposed S	7,487	$300.00	$2.25Mn	81,849	Direct
02 Nov, 2026	Carlos A Rodriguez	Director	Disposed S	539	$300.03	$161.71K	33,102	Direct
02 Nov, 2026	Carlos A Rodriguez	Director	Disposed S	3,345	$300.04	$1.00Mn	29,757	Direct
02 Nov, 2026	Carlos A Rodriguez	Director	Disposed S	3,426	$300.06	$1.03Mn	26,331	Direct
02 Nov, 2026	Carlos A Rodriguez	Director	Disposed S	3,458	$300.06	$1.04Mn	22,873	Direct
30 Oct, 2026	Virginia Magliulo	Executive Vp	Disposed S	2,927	$293.70	$859.66K	14,865	Direct
09 Sep, 2026	Vishwas Sugla	Chief Strategy Officer	Acquired A	2,827	$0.00	$0	2,827	Direct
09 Sep, 2026	Vishwas Sugla	Chief Strategy Officer	Acquired A	2,073	$0.00	$0	4,900	Direct
03 Sep, 2026	Joseph Desilva	Executive Vp	Disposed S	631	$282.87	$178.49K	18,824	Direct
01 Sep, 2026	Carlos A Rodriguez	Director	Disposed F	13,472	$283.49	$3.82Mn	34,178	Direct
01 Sep, 2026	Jonathan S Lehberger	Corp. Vp	Acquired A	903	$0.00	$0	6,138	Direct
01 Sep, 2026	David Foskett	Corp. Vp	Acquired A	4,006	$0.00	$0	17,656	Direct
01 Sep, 2026	Samantha D Orihuela	Chief Marketing Officer	Acquired A	1,163	$0.00	$0	6,454	Direct
01 Sep, 2026	Paul Boland	Corp. Vp	Acquired A	3,634	$0.00	$0	15,467	Direct
01 Sep, 2026	Christopher D'Ambrosio	Corp. Vp	Acquired A	2,565	$0.00	$0	13,535	Direct
01 Sep, 2026	David Kwon	Corp Vp	Acquired A	1,763	$0.00	$0	14,956	Direct
01 Sep, 2026	Brian L. Michaud	Executive Vp	Acquired A	2,683	$0.00	$0	21,125	Direct
01 Sep, 2026	Joseph Desilva	Executive Vp	Acquired A	5,089	$0.00	$0	33,449	Direct
01 Sep, 2026	Sreenivasa Kutam	Corp Vp	Acquired A	5,259	$0.00	$0	57,028	Direct

Showing 1 to 20 of 4,230 transactions