Other Information
−Removed: (c) During the fiscal quarter ended December 31, 2025, none of the Company’s directors or executive officers adopted or terminated any contract, instruction or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement”.
+Added: (a) On April 26, 2026, the Board of Directors (the "Board") of the Company amended and restated the Company's By-Laws to make a change to incorporate an applicable SEC rule requirement under Section 2.04 of the By-Laws.
+Added: The full text of the amended and restated By-Laws is attached hereto as Exhibit 3.1 and is incorporated herein by reference.
+Added: (c) During the fiscal quarter ended March 31, 2026, the following director adopted a trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c).
+Added: Name & Title Date of Adoption Duration of Trading Arrangement Aggregate number of securities to be purchased pursuant to the trading arrangement
+Added: January 30, 2026
+Added: May 7, 2026 – May 15, 2026
+Added: (1) Trading arrangement with a target purchase amount of up to approximately $750,000 in shares of the Company's common stock.
Exhibit Number Exhibit
+Added: Amended and Restated By-laws of Automatic Data Processing, Inc., dated April 26, 2026
Certification by Maria Black pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934
13 unchanged sentences
AUTOMATIC DATA PROCESSING, INC.
−Removed: January 29, 2026 /s/ Peter Hadley
+Added: April 30, 2026 /s/ Peter Hadley
Chief Financial Officer
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.