Automatic Data Processing · Insider Trading

Last 365 days · Open-market buys and sells by officers and directors · Same-day, same-person, same-direction trades combined · Amounts in USD millions← ADP

Buy

1 · $0.75M

Sell

10 · $12.5M

Net

−$11.8M

By Insider

Name	Title	Buy	Sell	Latest Trade
Black Maria	President & CEO	—	29,810 shares · $8.4M	2026-09-02
DeSilva Joseph	Executive VP	—	7,143 shares · $2.0M	2026-09-03
Kwon David	Corp VP	—	3,212 shares · $0.86M	2026-08-20
SWAN ROBERT HOLMES	—	3,619 shares · $0.75M	—	2026-05-07
D'Ambrosio Christopher	Corp. VP	—	2,415 shares · $0.64M	2026-09-02
Foskett David	Corp. VP	—	1,529 shares · $0.43M	2026-09-02
Michaud Brian L.	Executive VP	—	968 shares · $0.21M	2026-08-21

All Trades

Date	Name	Title	Side	Shares	Trades	Avg Price	Value
2026-09-03	DeSilva Joseph	Executive VP	Sell	631	1	282.87	$0.18M
2026-09-02	Black Maria	President & CEO	Sell	29,810	14	280.91	$8.4M
2026-09-02	D'Ambrosio Christopher	Corp. VP	Sell	1,872	1	283.00	$0.53M
2026-09-02	DeSilva Joseph	Executive VP	Sell	6,512	1	283.00	$1.8M
2026-09-02	Foskett David	Corp. VP	Sell	1,529	1	283.00	$0.43M
2026-08-21	Michaud Brian L.	Executive VP	Sell	120	1	279.70	$0.03M
2026-08-20	Kwon David	Corp VP	Sell	798	1	280.00	$0.22M
2026-07-30	Kwon David	Corp VP	Sell	2,414	3	265.62	$0.64M
2026-05-08	Michaud Brian L.	Executive VP	Sell	848	1	212.13	$0.18M
2026-05-07	SWAN ROBERT HOLMES	Director	Buy	3,619	1	206.05	$0.75M
2026-04-14	D'Ambrosio Christopher	Corp. VP	Sell	543	1	195.74	$0.11M

Data comes from insiders' SEC ownership filings (Form 4). Only open-market purchases (P) and sales (S) are counted; option exercises, grants, tax withholding and other non-trading changes are excluded.