$ADP

$301.21 -$2.95 (0.97%) Live

$ADP Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 397.3M shares outstanding

Who owns ADP?

By type of holder

Institutions 89.0% Insiders 0.2% Everyone else 10.8%

Concentration Top 10 holders own 39.8%

BlackRock, Inc. 9.1% · Vanguard Capital Management LLC 6.6%

Institutional ownership

89.0%

+1.0 pts vs last qtr

Institutional holders

2,282

-4 vs last qtr

Net shares bought

+4.1M

by institutions in Q2 2026

New / sold out

198 / 202

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Norges Bank NEW +2.9M
First Eagle Investment Management, LLC +2.3M

Biggest sellers in Q2 2026

Barclays PLC −1.5M
Fundsmith LLP −1.3M

Who is planning to sell?

Notices of proposed sale, last 12 months

$17.9M

19 notices from 7 people

Shares covered

66.5K

0.02% of the company

Arranged in advance

78%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Black Maria Officer 10b5-1 $8.62M
Jones John P III Director $4.01M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2017–FY2026

−10.4%

−1.22% a year

Each share's claim on the business

+11.7%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$13.3B vs $1.96B

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years89% 3–5 years2% 1–3 years4% Under 1 year6%

Quarterly turnover

7.3%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting ADP on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	36.2M	9.10%	+657.4K (+1.9%)	≤2021	0.1%
Shares held by quarter Peak holding36.5M (Q4'25) Change over 8 quarters+224.6K Share of the company9.100% BlackRock, Inc.'s full portfolio →
VC Vanguard Capital Management LLC	26.1M	6.57%	−54.9K (−0.2%)	≤2021	0.1%
Shares held by quarter Peak holding26.2M (Q1'26) Change over 8 quarters+26.1M Share of the company6.570% Vanguard Capital Management LLC's full portfolio →

BlackRock, Inc.

36.2M

% of company

9.10%

Change vs last qtr

+657.4K (+1.9%)

Held since

≤2021

Vanguard Capital Management LLC

26.1M

% of company

6.57%

Change vs last qtr

−54.9K (−0.2%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Automatic Data Processing Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ADP on Form N-PORT; together they hold 35.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$2.84B	12.7M	3.19%	0.12%	June 30, 2026
V5 Vanguard 500 Index Fund Vanguard Index Funds	$2.32B	10.4M	2.61%	0.14%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$2.84B

% of company

3.19%

% of the fund

0.12%

As of

June 30, 2026

Vanguard 500 Index Fund

Vanguard Index Funds

Position value

$2.32B

% of company

2.61%

% of the fund

0.14%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Automatic Data Processing Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
BM Bonarti Michael A Insider	89.3K	0.02%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.020% Bonarti Michael A's insider activity →
BM Black Maria Insider	80.6K	0.02%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.020% Black Maria's insider activity →

Bonarti Michael A

Insider

89.3K

% of company

0.02%

Change vs last qtr

—

Held since

—

Black Maria

Insider

80.6K

% of company

0.02%

Change vs last qtr

—

Held since

—

27 more holders behind a free account

See every insider and 5%+ holder of Automatic Data Processing Inc.

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