[Form 4] Automatic Data Processing Insider Trading Activity

Rhea-AI Filing Summary

Joseph DeSilva, Executive Vice President of Automatic Data Processing Inc. (ADP), reported a sale of 4,614 shares of ADP common stock at a price of $296.57 per share. The Form 4 indicates the sale was coded as a sale (S) and was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in September 2024. After the reported transaction, the reporting person beneficially owned 17,535.614 shares, held directly.

The form shows the transaction date as 09/03/2025 and identifies the sale as part of an established plan, which typically documents prearranged instructions for trading by insiders.

Insights

Corporate Governance Expert

TL;DR: Insider sale executed under a 10b5-1 plan reduces holdings but follows a pre-established trading program, lowering signaling risk.

The reported disposition of 4,614 shares at $296.57 was effected under a Rule 10b5-1 plan adopted in September 2024, which provides an affirmative defense to allegations of trading on material nonpublic information when properly adopted and executed. The report lists direct beneficial ownership of 17,535.614 shares after the sale, indicating continued ownership interest. From a governance standpoint, use of a documented plan is a standard compliance practice that tends to mitigate concerns about opportunistic insider timing.

Securities Analyst

TL;DR: A routine insider sale under a pre-arranged plan; transaction size is disclosed but not large enough on its face to indicate a material shift in ownership.

The Form 4 discloses a single non-derivative sale (code S) of 4,614 shares at $296.57 and reports 17,535.614 shares beneficially owned thereafter. The filing confirms the sale was made pursuant to a 10b5-1 plan adopted in September 2024, and it was reported on the standard Form 4. There are no derivative transactions or other material events disclosed that would change the firm’s capital structure or signal a financing or major corporate action.

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^*

DeSilva Joseph

(Last) (First) (Middle)

ONE ADP BOULEVARD

(Street)

ROSELAND NJ 07068

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2025

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

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

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

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	09/03/2025		S		4,614(1)	D	$296.57	17,535.614	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 2024.

	David Kwon (POA on File)	09/05/2025
	** 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.

FAQ

What transaction did ADP insider Joseph DeSilva report on Form 4?

He reported a sale of 4,614 shares of ADP common stock coded as a sale (S).

At what price were the ADP shares sold by Joseph DeSilva?

The shares were sold at $296.57 per share according to the Form 4.

How many ADP shares does Joseph DeSilva beneficially own after the sale?

He beneficially owns 17,535.614 shares following the reported transaction.

Was the sale by the ADP executive part of a prearranged trading plan?

Yes, the Form 4 states the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted in September 2024.

What is the transaction date reported on the Form 4 for this ADP sale?

The transaction date is 09/03/2025 as shown on the Form 4.