Automatic Data Processing Inc.

ADP·NASDAQ·$218.35Share Price as of 11/2·$87BMarket Cap as of 11/2

Financials

10-QQ1 ended 09/30/2610/30/26 10-KFY 202608/05/26 10-QQ3 ended 03/31/2604/30/26 10-QQ2 ended 12/31/2501/29/26 10-QQ1 ended 09/30/2510/31/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report07/29/26 8-KCurrent report06/26/26 8-KCurrent report05/07/26 8-KCurrent report04/29/26

Prospectuses and Registrations

424B2Prospectus for primary offering05/05/26 424B2Prospectus for primary offering05/04/26 FWPFree writing prospectus05/04/26 424B2Prospectus for primary offering05/07/25 424B2Prospectus for primary offering05/05/25

Proxies

DEF 14ADefinitive proxy09/24/26 DEFA14AAdditional proxy materials09/24/26 DEF 14ADefinitive proxy09/25/25 DEFA14AAdditional proxy materials09/25/25 DEF 14ADefinitive proxy09/19/24

Ownership

144Proposed sale of securities10/30/26 Form 3Initial insider ownership09/10/26 Form 4Insider transaction09/10/26 Form 4Insider transaction09/04/26 144Proposed sale of securities09/03/26

Other

ARSAnnual report to shareholders09/24/26 ARSAnnual report to shareholders09/25/25 ARSAnnual report to shareholders09/19/24 ARSAnnual report to shareholders09/21/23 UPLOADLetter from the SEC03/25/20