Automatic Data Processing (ADP) director adds shares under 10b5-1 plan

Rhea-AI Filing Summary

Automatic Data Processing director Robert Holmes Swan reported an open-market purchase of 3,619 shares of Common Stock at $206.05 per share. The transaction occurred on May 7, 2026 and was executed under a pre-arranged Rule 10b5-1 trading plan adopted in January 2026.

Following this purchase, Swan directly holds 5,072 ADP shares. In addition, 115 shares are held indirectly by a trust. Rule 10b5-1 plans allow insiders to schedule trades in advance, so the timing of this buy reflects a pre-set plan rather than a spontaneous market decision.

Insider Trade Summary 10b5-1

Net Buyer: 3,619 shares ($745,695)

Net Buy 2 txns

Insider SWAN ROBERT HOLMES

Role null

Bought 3,619 shs ($746K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	3,619	$206.05	$746K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 5,072 shares (Direct, null); Common Stock — 115 shares (Indirect, By Trust)

Footnotes (1)

1. [object Object]

Key Figures

Shares purchased: 3,619 shares Purchase price: $206.05 per share Direct holdings after transaction: 5,072 shares +2 more

5 metrics

Shares purchased 3,619 shares Open-market purchase on May 7, 2026

Purchase price $206.05 per share Open-market transaction

Direct holdings after transaction 5,072 shares Common Stock held directly by director

Indirect holdings after transaction 115 shares Common Stock held by trust

Net buy shares 3,619 shares Net-buy direction in transaction summary

Key Terms

Rule 10b5-1 trading plan, open-market purchase, Common Stock, indirect ownership

4 terms

Rule 10b5-1 trading plan regulatory

"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in January 2026."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

open-market purchase financial

"transaction_action": "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

indirect ownership financial

"ownership_type": "indirect""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SWAN ROBERT HOLMES

(Last) (First) (Middle)

ONE ADP BOULEVARD

(Street)

ROSELAND NEW JERSEY 07068

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AUTOMATIC DATA PROCESSING INC [ ADP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/07/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/07/2026		P		3,619(1)	A	$206.05	5,072	D
Common Stock								115	I	By Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in January 2026.

	David Kwon (POA on File)	05/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did ADP director Robert Holmes Swan report?

Robert Holmes Swan reported buying 3,619 shares of ADP Common Stock in an open-market transaction. The purchase took place on May 7, 2026 at a price of $206.05 per share, according to the Form 4 filing.

At what price did the ADP director purchase the 3,619 shares?

The 3,619 ADP shares were purchased at $206.05 per share. This price reflects the open-market transaction reported for May 7, 2026 and is explicitly disclosed as the transaction price in the Form 4 data.

How many ADP shares does Robert Holmes Swan own after this transaction?

After the transaction, Robert Holmes Swan directly owns 5,072 ADP shares. The filing also shows an additional 115 shares held indirectly by a trust, giving insight into both his direct and indirect positions in the company.

Was the ADP director’s share purchase made under a Rule 10b5-1 plan?

Yes. The filing footnote states the transactions were effected under a Rule 10b5-1 trading plan adopted in January 2026. Such pre-arranged plans schedule trades in advance, reducing the significance of trade timing as a discretionary decision.

Does the Form 4 show any ADP share sales by Robert Holmes Swan?

No sales are reported in this Form 4. The transaction summary shows one open-market purchase of 3,619 shares and zero sales, resulting in a net-buy position for the reported period in the filing.