AUTOMATIC DATA PROCESSING INC — Director's Dealing 2011

Mar 9, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AUTOMATIC DATA PROCESSING INC (ADP)
CIK: 0000008670
Period of Report: 2011-03-08

Reporting Person: Siegmund Jan (Corporate Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-03-08	Common Stock	M	9877.0000	$44.9568	Acquired	50625.7900	Direct
2011-03-08	Common Stock	M	1978.0000	$39.6356	Acquired	52603.7900	Direct
2011-03-08	Common Stock	S	11100.0000	$50.8844	Disposed	41503.7900	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-03-08	Stock Option (Right to Buy)	$39.6356	M	1978.0000	Disposed	2011-09-20	Common Stock (1978.0000)	Direct
2011-03-08	Stock Option (Right to Buy)	$44.9568	M	9877.0000	Disposed	2011-10-21	Common Stock (9877.0000)	Direct