Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
SEC ownership of AUTOMATIC DATA PROCESSING INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000008670.
Disclosed value leader
BlackRock, Inc.
Comparable rows
2/50
Latest evidence
30 Sep 2026
- Public ticker
- ADP on Nasdaq
- Parsed ownership sources
-
13D/G and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
2 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
-
30 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000008670
- Issuer location
- Roseland, NJ
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
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
2/50
Latest evidence
30 Sep 2026
13D/G
13F
Lead comparable stake: 7.5%
48 rows are not safely comparable across share classes.
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%.
2 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 2
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
STATE STREET CORP
4.9%
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%
Reported 13D/G
· 31 Mar 2026
|
$6,149,346,931
30,265,513 shares
|
$0 | 31 Mar 2026 |
| STATE STREET CORP |
13D/G
13F
STATE STREET CORPORATION · Company
|
4.9%
Reported 13D/G
· 30 Sep 2026
|
$5,368,169,086
19,605,453 shares
|
-$220,534,788 | 30 Sep 2026 |
| BlackRock, Inc. |
13F
Company
|
—
denominator unverified
|
$8,097,229,043
36,156,415 shares
|
— | 30 Jun 2026 |
| Invesco Ltd. |
13F
Company
|
—
denominator unverified
|
$3,037,339,270
13,562,578 shares
|
— | 30 Jun 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
Company
|
—
denominator unverified
|
$2,851,012,719
12,729,777 shares
|
— | 30 Jun 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
—
denominator unverified
|
$2,680,201,438
11,955,019 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$2,360,732,421
10,541,337 shares
|
— | 30 Jun 2026 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
—
denominator unverified
|
$2,246,045,835
10,029,229 shares
|
— | 30 Jun 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: -$22,998,533.
Buys
$745,695
Insiders: 1
Sells
$23,744,228
Insiders: 10
Net
-$22,998,533
Shares: -79,558
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 3,619
Shares: 83,177
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 74,056 | $0 | $21,517,357 | -$21,517,357 |
| 3-6 | 0 | 2,414 | $0 | $641,207 | -$641,207 |
| 6-9 | 3,619 | 2,477 | $745,695 | $514,711 | +$230,984 |
| 9-12 | 0 | 4,230 | $0 | $1,070,954 | -$1,070,954 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 44 reporting-owner rows connected to AUTOMATIC DATA PROCESSING INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
44
Largest Forms 3/4/5 holder
Michael A. Bonarti
Net 12M change
-$23M
Full value: -$22,998,533 · USD · 12-month changeLatest report
11 Nov 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael A. Bonarti | Corporate Vice President | $26,782,422 | -$4,357,820 | -14% | Mixed | 05 Nov 2026 |
| Maria Black | President & CEO | $22,640,710 | -$8,557,753 | -27% | Filing P/S | 01 Sep 2026 |
| John P. Jones III | Director | $18,228,193 | Mixed | 06 Nov 2024 | ||
| Sreenivasa Kutam | Corp VP | $11,130,139 | Mixed | 01 Sep 2026 | ||
| Carlos A. Rodriguez | Director | $8,558,895 | -$4,189,735 | -33% | Median | 11 Nov 2026 |
| Donald Weinstein | Corporate VP | $8,492,228 | Mixed | 11 Jan 2023 | ||
| Michael C. Eberhard | Corporate Vice President | $7,617,906 | Mixed | 01 Sep 2022 | ||
| Clark Richard T. | Director | $7,589,493 | Mixed | 10 Nov 2021 | ||
| John Ayala | Corp. VP | $6,821,761 | Mixed | 03 Jan 2025 | ||
| Dermot J. O'Brien | Corp. VP | $6,315,251 | Mixed | 09 Jun 2021 | ||
| Deborah L. Dyson | Corp. VP | $6,269,316 | Mixed | 05 Apr 2022 | ||
| Peter Bisson | Director | $6,208,407 | Median | 11 Nov 2026 | ||
| Don McGuire | Corp VP | $6,014,708 | Mixed | 03 Sep 2025 | ||
| Stuart Sackman | Corp. VP | $5,637,623 | Mixed | 03 Jan 2022 | ||
| Sandra S. Wijnberg | Director | $5,628,288 | Median | 11 Nov 2026 | ||
| William J. Ready | Director | $5,549,880 | Mixed | 06 Nov 2024 | ||
| Joseph DeSilva | Executive VP | $5,324,798 | -$2,021,387 | -28% | Filing P/S | 03 Sep 2026 |
| Thomas J. Lynch | Director | $4,867,785 | Median | 11 Nov 2026 | ||
| Virginia Magliulo | Executive VP | $4,784,490 | -$1,123,785 | -19% | Mixed | 05 Nov 2026 |
| Kathleen A. Winters | Corp. VP | $4,531,787 | Mixed | 01 Sep 2021 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Robert Holmes Swan | ADP | Common Stock | Award | 24.1% | 1,224 | 6,296 | 11 Nov 2026 | Direct | ||
| Nancy McKinstry | ADP | Common Stock | Award | 1,224 | 1,224 | 11 Nov 2026 | Direct | |||
| David W. Kenny | ADP | Common Stock | Award | 1,224 | 1,224 | 11 Nov 2026 | Direct | |||
| Sandra S. Wijnberg | ADP | Common Stock | Award | 6.36% | 1,305 | 21,810 | 11 Nov 2026 | Direct | ||
| Carlos A. Rodriguez | ADP | Common Stock | Award | 6.75% | 1,224 | 19,353 | 11 Nov 2026 | Direct | ||
| Scott F. Powers | ADP | Common Stock | Award | 8.9% | 1,297 | 15,869 | 11 Nov 2026 | Direct | ||
| Thomas J. Lynch | ADP | Common Stock | Award | 11% | 1,876 | 18,863 | 11 Nov 2026 | Direct | ||
| Karen S. Lynch | ADP | Common Stock | Award | 79.7% | 1,224 | 2,759 | 11 Nov 2026 | Direct | ||
| Nazzic S. Keene | ADP | Common Stock | Award | 8.06% | 783 | 10,500 | 11 Nov 2026 | Direct | ||
| Francine S. Katsoudas | ADP | Common Stock | Award | 10.5% | 1,224 | 12,858 | 11 Nov 2026 | Direct | ||
| Linnie M. Haynesworth | ADP | Common Stock | Award | 11.4% | 783 | 7,674 | 11 Nov 2026 | Direct | ||
| Peter Bisson | ADP | Common Stock | Award | 5.66% | 1,289 | 24,058 | 11 Nov 2026 | Direct | ||
| Carlos A. Rodriguez | ADP | Common Stock | Gift | -10.4% | -2,113 | 18,129 | 06 Nov 2026 | Direct | ||
| Michael A. Bonarti | ADP | Common Stock | Sale | -7.68% | -$2,111,720 | $310.00 | -6,812 | 81,849 | 05 Nov 2026 | Direct |
| Michael A. Bonarti | ADP | Common Stock | Options Exercise | 8.32% | 6,812 | 88,661 | 05 Nov 2026 | Direct | ||
| Michael A. Bonarti | ADP | Stock Option (Right to Buy) | Options Exercise | -100% | -6,812 | 0 | 05 Nov 2026 | Direct | ||
| Virginia Magliulo | ADP | Common Stock | Sale | -5.42% | -$264,125 | $310.01 | -852 | 14,865 | 05 Nov 2026 | Direct |
| Virginia Magliulo | ADP | Common Stock | Options Exercise | 5.73% | 852 | 15,717 | 05 Nov 2026 | Direct | ||
| Virginia Magliulo | ADP | Stock Option (Right to Buy) | Options Exercise | -100% | -852 | 0 | 05 Nov 2026 | Direct | ||
| Carlos A. Rodriguez | ADP | Common Stock | Sale | -11.5% | -$797,634 | $303.17 | -2,631 | 20,242 | 04 Nov 2026 | Direct |
| Jonathan S. Lehberger | ADP | Common Stock | Sale | -13.4% | -$231,270 | $300.35 | -770 | 4,961 | 04 Nov 2026 | Direct |
| Michael A. Bonarti | ADP | Common Stock | Sale | -8.38% | -$2,246,100 | $300.00 | -7,487 | 81,849 | 02 Nov 2026 | Direct |
| Carlos A. Rodriguez | ADP | Common Stock | Sale | -33.1% | -$3,392,101 | $300.05 | -11,305 | 22,873 | 02 Nov 2026 | Direct |
| Virginia Magliulo | ADP | Common Stock | Sale | -16.4% | -$859,660 | $293.70 | -2,927 | 14,865 | 30 Oct 2026 | Direct |
| 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 |
* marks a reported price that did not pass the local price check.