SEC ownership of AUTOMATIC DATA PROCESSING INC

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000008670.

Comparable stake leader

VANGUARD CAPITAL MANAGEMENT LLC

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

09 Sep 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
VANGUARD CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
09 Sep 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000008670
Issuer location
Roseland, NJ

Ownership snapshot

Top shareholders of AUTOMATIC DATA PROCESSING INC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
09 Sep 2026
13D/G 13F 3/4/5 Lead comparable stake: 7.5% 13D/G row: VANGUARD CAPITAL MANAGEMENT LLC Showing 1-8 of 50 holder rows.

Quick read

VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.5%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership Top 5
VANGUARD CAPITAL MANAGEMENT LLC 7.5%
STATE STREET CORP 5.1%
Maria Black 0.02%
Sreenivasa Kutam 0.01%
Carlos A. Rodriguez 0.01%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
VANGUARD CAPITAL MANAGEMENT LLC
13D/G 13F
Vanguard Capital Management · Company
7.5%
$6,149,346,931
30,265,513 shares
$0 31 Mar 2026
STATE STREET CORP
13D/G 13F
STATE STREET CORPORATION · Company
5.1%
$5,124,152,177
20,410,883 shares
$0 30 Jun 2026
Maria Black
3/4/5
President & CEO
0.02%
$22,640,710
80,624 shares
-$8,557,753 01 Sep 2026
Sreenivasa Kutam
3/4/5
Corp VP
0.01%
$11,130,139
49,699 shares
— 01 Sep 2026
Carlos A. Rodriguez
3/4/5
Director
0.01%
$10,747,652
47,991 shares
— 01 Sep 2026
Peter Bisson
3/4/5
Director
0.01%
$6,682,701
22,769 shares
— 12 Nov 2025
Sandra S. Wijnberg
3/4/5
Director
0.01%
$6,018,217
20,505 shares
— 12 Nov 2025
Brian L. Michaud
3/4/5
Executive VP
0%
$4,219,909
18,843 shares
-$447,630 01 Sep 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$13,095,924.

Buys
$745,695
Insiders: 1
Sells
$13,841,619
Insiders: 6
Net
-$13,095,924
Shares: -46,774
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 3,619 Shares: 50,393
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 43,686 $0 $12,255,954 -$12,255,954
3-6 3,619 1,391 $745,695 $286,173 +$459,522
6-9 0 5,316 $0 $1,299,492 -$1,299,492
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 21-40 of 42 reporting-owner rows connected to AUTOMATIC DATA PROCESSING INC. Open a relationship link for the CIK-to-CIK filing trail.

Rows
42
Largest Forms 3/4/5 holder
Maria Black
Net 12M change
-$13,095,923
Latest report
09 Sep 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Brian L. Michaud Executive VP $4,219,909 -$447,630 -9.6% Median 01 Sep 2026
Virginia Magliulo Executive VP $4,160,769 Mixed 01 Sep 2026
David Foskett Corp. VP $4,003,446 -$495,749 -11% Filing P/S 01 Sep 2026
Peter J. Hadley Cfo $3,854,954 Median 01 Sep 2026
Francine S. Katsoudas Director $3,414,579 Mixed 12 Nov 2025
David Kwon Corp VP $3,223,332 -$1,312,075 -29% Mixed 01 Sep 2026
Nazzic S. Keene Director $2,851,939 Mixed 12 Nov 2025
Christopher D'Ambrosio Corp. VP $2,809,531 -$1,007,024 -26% Filing P/S 01 Sep 2026
Paul Boland Corp. VP $2,762,163 Median 01 Sep 2026
Sperduto James T. Corp VP $2,367,354 Mixed 02 Nov 2022
Linnie M. Haynesworth Director $2,022,508 Mixed 12 Nov 2025
David Goeckeler Director $1,955,297 Mixed 12 Nov 2025
Kareem Rogers Corp. VP $1,694,025 Mixed 01 Sep 2022
Samantha D. Orihuela Chief Marketing Officer $1,511,633 Median 01 Sep 2026
Brock Albinson Corp. VP $1,487,157 Mixed 01 Mar 2024
Laura G. Brown Corp. VP $1,414,589 Mixed 03 Oct 2022
Jonathan S. Lehberger Corp. VP $1,283,517 Median 01 Sep 2026
Augusto J. Blanchard Corp VP $1,161,465 Mixed 01 Sep 2022
Vishwas Sugla Chief Strategy Officer $1,097,355 Median 09 Sep 2026
Alexander Quevedo Corp VP $1,088,713 Mixed 01 Sep 2022

Recent insider transactions for AUTOMATIC DATA PROCESSING INC

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Vishwas Sugla ADP Common Stock Award 4,900 4,900 09 Sep 2026 Direct
Joseph DeSilva ADP Common Stock Sale -3.24% $178,491 $282.87 -631 18,824 03 Sep 2026 Direct
David Foskett ADP Common Stock Sale -9.75% $432,707 $283.00 -1,529 14,146 02 Sep 2026 Direct
Joseph DeSilva ADP Common Stock Sale -25.1% $1,842,896 $283.00 -6,512 19,455 02 Sep 2026 Direct
Christopher D'Ambrosio ADP Common Stock Sale -15.9% $529,776 $283.00 -1,872 9,928 02 Sep 2026 Direct
Maria Black ADP Common Stock Sale -27% $8,373,873 $280.91 -29,810 80,624 02 Sep 2026 Direct
Carlos A. Rodriguez ADP Common Stock Tax liability -28.3% -13,472 34,178 01 Sep 2026 Direct
Samantha D. Orihuela ADP Common Stock Tax liability -34.2% -154 296 01 Sep 2026 By Spouse
Samantha D. Orihuela ADP Common Stock Award 22% 1,163 6,454 01 Sep 2026 Direct
Brian L. Michaud ADP Common Stock Tax liability -10.8% -2,281 18,843 01 Sep 2026 Direct
Brian L. Michaud ADP Common Stock Award 14.6% 2,683 21,125 01 Sep 2026 Direct
Virginia Magliulo ADP Common Stock Tax liability -13.2% -2,709 17,792 01 Sep 2026 Direct
Virginia Magliulo ADP Common Stock Award 16.2% 2,858 20,501 01 Sep 2026 Direct
Jonathan S. Lehberger ADP Common Stock Tax liability -6.62% -406 5,731 01 Sep 2026 Direct
Jonathan S. Lehberger ADP Common Stock Award 17.2% 903 6,138 01 Sep 2026 Direct
David Kwon ADP Common Stock Tax liability -13.2% -1,969 12,986 01 Sep 2026 Direct
David Kwon ADP Common Stock Award 13.4% 1,763 14,956 01 Sep 2026 Direct
Sreenivasa Kutam ADP Common Stock Tax liability -12.8% -7,329 49,699 01 Sep 2026 Direct
Sreenivasa Kutam ADP Common Stock Award 10.2% 5,259 57,028 01 Sep 2026 Direct
Peter J. Hadley ADP Common Stock Tax liability -8.75% -1,651 17,213 01 Sep 2026 Direct
Peter J. Hadley ADP Common Stock Award 52.1% 6,464 18,864 01 Sep 2026 Direct
David Foskett ADP Common Stock Tax liability -11.2% -1,980 15,675 01 Sep 2026 Direct
David Foskett ADP Common Stock Award 29.4% 4,006 17,656 01 Sep 2026 Direct
Joseph DeSilva ADP Common Stock Tax liability -22.4% -7,482 25,967 01 Sep 2026 Direct
Joseph DeSilva ADP Common Stock Award 17.9% 5,089 33,449 01 Sep 2026 Direct
Christopher D'Ambrosio ADP Common Stock Tax liability -12.8% -1,736 11,800 01 Sep 2026 Direct
Christopher D'Ambrosio ADP Common Stock Award 23.4% 2,565 13,535 01 Sep 2026 Direct
Michael A. Bonarti ADP Common Stock Tax liability -7.96% -7,727 89,336 01 Sep 2026 Direct
Michael A. Bonarti ADP Common Stock Award 5.52% 5,076 97,063 01 Sep 2026 Direct
Paul Boland ADP Common Stock Tax liability -20.3% -3,134 12,334 01 Sep 2026 Direct
Paul Boland ADP Common Stock Award 30.7% 3,634 15,467 01 Sep 2026 Direct
Maria Black ADP Common Stock Tax liability -22% -31,215 110,434 01 Sep 2026 Direct
Maria Black ADP Common Stock Award 18.1% 21,689 141,650 01 Sep 2026 Direct
Brian L. Michaud ADP Common Stock Sale -0.65% $33,564 $279.70 -120 18,442 21 Aug 2026 Direct
David Kwon ADP Common Stock Sale -5.7% $223,440 $280.00 -798 13,193 20 Aug 2026 Direct
David Kwon ADP Common Stock Options Exercise 7.42% 967 13,991 20 Aug 2026 Direct
David Kwon ADP Stock Option (Right to Buy) Options Exercise -100% -967 0 20 Aug 2026 Direct
Carlos A. Rodriguez ADP Common Stock Award 109.6% 24,922 47,650 05 Aug 2026 Direct
Brian L. Michaud ADP Common Stock Award 27.9% 4,050 18,562 05 Aug 2026 Direct
Virginia Magliulo ADP Common Stock Award 29.8% 4,050 17,643 05 Aug 2026 Direct
Jonathan S. Lehberger ADP Common Stock Award 16.6% 747 5,235 05 Aug 2026 Direct
David Kwon ADP Common Stock Award 31.4% 3,114 13,024 05 Aug 2026 Direct
Sreenivasa Kutam ADP Common Stock Award 27.2% 11,083 51,769 05 Aug 2026 Direct
Peter J. Hadley ADP Common Stock Award 13.5% 1,479 12,400 05 Aug 2026 Direct
David Foskett ADP Common Stock Award 24.1% 2,647 13,650 05 Aug 2026 Direct
Joseph DeSilva ADP Common Stock Award 62.4% 10,903 28,360 05 Aug 2026 Direct
Christopher D'Ambrosio ADP Common Stock Award 31.1% 2,601 10,970 05 Aug 2026 Direct
Michael A. Bonarti ADP Common Stock Award 14.4% 11,573 91,987 05 Aug 2026 Direct
Paul Boland ADP Common Stock Award 65.2% 4,672 11,833 05 Aug 2026 Direct
Maria Black ADP Common Stock Award 59.7% 44,859 119,961 05 Aug 2026 Direct
* marks a reported price that did not pass the local price check.
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