Maria Black - 01 Sep 2025 Form 4 Insider Report for AUTOMATIC DATA PROCESSING INC (ADP)

Reporting relationship: President & CEO
Issuer ticker: ADP
Reported as of: 01 Sep 2025
Net transaction value: -$9,831,555
SEC form: 4
Accepted by SEC: 03 Sep 2025, 16:06:06 UTC
Prior SEC filing: 07 Aug 2025
Next SEC filing: 05 Sep 2025
Source filing: View source filing
Reporting owner signature: David Kwon (POA on File)

Key filing fact

Maria Black filed Form 4 for AUTOMATIC DATA PROCESSING INC (ADP) on 03 Sep 2025.

Key facts

This page summarizes Maria Black's Form 4 filing for AUTOMATIC DATA PROCESSING INC (ADP).
8 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 03 Sep 2025, 16:06.

Change

Previous filing in this sequence was filed on 07 Aug 2025.
Current net transaction value: -$9,831,555.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001608466 Primary reporting owner

Black Maria

Relationship: President & CEO
Address: ONE ADP BOULEVARD, ROSELAND
Signature: David Kwon (POA on File)
Signature date: 03 Sep 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ADP transaction

Common Stock

Award

Transaction value: $0
Shares: +19,000
Change %: +18%
Price: $0.000000
Shares after: 124,485
Date: 01 Sep 2025
Ownership: Direct
Footnotes: F1

ADP transaction

Common Stock

Options Exercise

Transaction value: $1,597,166
Shares: +7,721
Change %: +6.2%
Price: $206.86
Shares after: 132,206
Date: 02 Sep 2025
Ownership: Direct
Footnotes: F2

ADP transaction

Common Stock

Sale

Transaction value: $192,686
Shares: -638
Change %: -0.48%
Price: $302.02
Shares after: 131,568
Date: 02 Sep 2025
Ownership: Direct
Footnotes: F2

ADP transaction

Common Stock

Sale

Transaction value: $505,565
Shares: -1,678
Change %: -1.3%
Price: $301.29
Shares after: 129,890
Date: 02 Sep 2025
Ownership: Direct
Footnotes: F2

ADP transaction

Common Stock

Sale

Transaction value: $667,470
Shares: -2,228
Change %: -1.7%
Price: $299.58
Shares after: 127,662
Date: 02 Sep 2025
Ownership: Direct
Footnotes: F2

ADP transaction

Common Stock

Sale

Transaction value: $950,056
Shares: -3,177
Change %: -2.5%
Price: $299.04
Shares after: 124,485
Date: 02 Sep 2025
Ownership: Direct
Footnotes: F2

ADP transaction

Common Stock

Tax liability

Transaction value: $7,515,777
Shares: -24,719
Change %: -20%
Price: $304.05
Shares after: 99,766
Date: 02 Sep 2025
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ADP transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value: $1,597,166
Shares: -7,721
Change %: -100%
Price: $206.86
Shares after: 0
Date: 02 Sep 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 7,721
Exercise price: $206.86

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

In the form of restricted stock units, which are convertible into common stock on a one-for-one basis and vest ratably over 3 years.

Footnote F2

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.