# EDGAR Filing Document

**Accession Number:** 0000008670
**File Stem:** 0001225208-25-009128
**Filing Date:** 2025-11
**Character Count:** 5874
**Document Hash:** cfc8ad13bd1de1b14d80976c97aa50b1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001225208-25-009128.hdr.sgml**: 20251113

**ACCESSION NUMBER**: 0001225208-25-009128

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251112

**FILED AS OF DATE**: 20251113

**DATE AS OF CHANGE**: 20251113

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Lynch Karen S
- **CENTRAL INDEX KEY:** 0001333760

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-05397
- **FILM NUMBER:** 251478564

**MAIL ADDRESS:**
- **STREET 1:** 151 FARMINGTON AVENUE
- **STREET 2:** RW61
- **CITY:** HARTFORD
- **STATE:** CT
- **ZIP:** 06156

**FORMER NAME:**
- **FORMER CONFORMED NAME:** Rohan Karen
- **DATE OF NAME CHANGE:** 20050721
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AUTOMATIC DATA PROCESSING INC
- **CENTRAL INDEX KEY:** 0000008670
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 221467904
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0630

**BUSINESS ADDRESS:**
- **STREET 1:** ONE ADP BOULVARD
- **CITY:** ROSELAND
- **STATE:** NJ
- **ZIP:** 07068
- **BUSINESS PHONE:** 9739745000

**MAIL ADDRESS:**
- **STREET 1:** ONE ADP BOULEVARD
- **CITY:** ROSELAND
- **STATE:** NJ
- **ZIP:** 07068

## Ex-24

```

                                                                   EXHIBIT 24

                         AUTOMATIC DATA PROCESSING, INC.

                          Authorization and Designation
                                to Sign and File
                           Section 16 Reporting Forms

     The undersigned, KAREN S. LYNCH, a director of Automatic Data
Processing, Inc., a Delaware corporation (the Company), does hereby
authorize and designate DOROTHY WISNIOWSKI and MARY B. WOODS to
(i) obtain Electronic Data Gathering and Retrieval (EDGAR) filing
codes, (ii) enroll the undersigned in EDGAR Next, (iii) prepare,
execute and submit to the U.S. Securities and Exchange Commission
a Form ID, amendments thereto and such other documents and
information as may be necessary or appropriate to obtain EDGAR codes,
and (iv) serve as EDGAR account administrators.  The undersigned does
further hereby authorize and designate DAVID KWON, DOROTHY WISNIOWSKI
and MICHAEL A. BONARTI to sign and file on my behalf any and all
Forms 3, 4, 5 and 144 relating to equity securities of the Company
pursuant to the requirements of Section 16 of the Securities Exchange
Act of 1934 (Section 16).  This authorization, unless earlier revoked
by the undersigned in writing, shall be valid until the undersigned's
reporting obligations under Section 16 with respect to equity securities
of the Company shall cease.

                                    /s/ Karen S. Lynch
                                    ---------------------------
                                     KAREN S. LYNCH

Date signed:  October 24, 2025

```

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Lynch Karen S<br><sub>(Last) (First) (Middle)</sub><br>ONE ADP BOULEVARD<br><sub>(Street)</sub><br>ROSELAND, NJ 07068<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>AUTOMATIC DATA PROCESSING INC [ ADP ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-11-12 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock | 82.0000 | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

**Remarks:**
poa-klynch.txt

**Signature:** David Kwon (POA on File)  
**Date:** 2025-11-12

### Remarks:

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.**