ADP (NASDAQ: ADP) EVP stock sale under 10b5-1 plan

Rhea-AI Filing Summary

AUTOMATIC DATA PROCESSING INC (ADP) reported that Executive VP Brian L. Michaud sold 120 shares of common stock on 2026-08-21 at a price of $279.70 per share in an open-market or private transaction. Following this sale, he directly holds 18,441.5155 shares of ADP common stock. The transaction was effected under a Rule 10b5-1 trading plan adopted by the reporting person.

Insider Trade Summary 10b5-1

Net Seller: 120 shares

Net Sell 1 txn

Insider Michaud Brian L.

Role Executive VP

Sold 120 shs ($34K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	120	$279.70	$34K

Holdings After Transaction: Common Stock — 18,441.5155 shares (Direct)

Footnotes (1)

1. F1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in September 2025.

Key Figures

Shares sold: 120 shares Sale price per share: $279.70 Shares owned after transaction: 18,441.5155 shares +1 more

4 metrics

Shares sold 120 shares Common Stock sale on 2026-08-21

Sale price per share $279.70 Price for 120 ADP common shares sold on 2026-08-21

Shares owned after transaction 18,441.5155 shares Direct ownership of Brian L. Michaud following the sale

Net shares sold 120 shares Net-sell direction from transaction summary

Key Terms

Rule 10b5-1 trading plan, open market or private transaction, Executive VP

3 terms

Rule 10b5-1 trading plan regulatory

"transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"

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 or private transaction market

"transaction_code_description: Sale in open market or private transaction"

Executive VP other

"reporting person is an officer with the title Executive VP"

FAQ

What insider transaction did ADP report for Brian L. Michaud?

ADP reported that Executive VP Brian L. Michaud sold 120 shares of ADP common stock on 2026-08-21 at $279.70 per share in a sale classified as an open-market or private transaction.

How many ADP (ADP) shares does Brian L. Michaud hold after this sale?

After the reported sale, Brian L. Michaud directly holds 18,441.5155 shares of ADP common stock. This figure represents his reported direct ownership position following the 120-share disposition.

Was the ADP insider sale by Brian L. Michaud under a Rule 10b5-1 plan?

Yes. The filing states the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by Brian L. Michaud in September 2025, indicating the trades were made under a pre-arranged trading plan.

What was the sale price for Brian L. Michaud’s ADP shares?

The 120 ADP common shares sold by Brian L. Michaud on 2026-08-21 were transacted at a price of $279.70 per share, as reported in the Form 4.

How many ADP shares did Brian L. Michaud sell in this Form 4 filing?

Brian L. Michaud sold 120 shares of ADP common stock. The filing’s transaction summary also shows total net sell activity of 120 shares for this reporting date.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/24/2026 - 04:14 PM Accepted by SEC EDGAR 08/24/2026 - 04:13 PM Learn about SEC filing dates

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^*

Michaud Brian L.

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/21/2026

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	08/21/2026		S		120(1)	D	$279.7	18,441.5155	D

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 September 2025.

	Michael A. Bonarti (POA on file)	08/24/2026
	** 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)