FACTSET RESEARCH SYSTEMS INC — Director's Dealing 2010

Oct 18, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FACTSET RESEARCH SYSTEMS INC (FDS)
CIK: 0001013237
Period of Report: 2010-10-13

Reporting Person: KENNEDY KIERAN M. (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-10-13	FactSet Common Stock	M	2306	$29	Acquired	14777	Direct
2010-10-13	FactSet Common Stock	M	10192	$43.39	Acquired	24969	Direct
2010-10-13	FactSet Common Stock	M	9210	$43.39	Acquired	34179	Direct
2010-10-13	FactSet Common Stock	M	7955	$59.36	Acquired	42134	Direct
2010-10-13	FactSet Common Stock	M	5544	$65.67	Acquired	47678	Direct
2010-10-13	FactSet Common Stock	M	2484	$35.80	Acquired	50162	Direct
2010-10-13	FactSet Common Stock	S	37691	$85.11	Disposed	12471	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-10-13	Non-Qualified Stock Option (right to buy)	$29	M	2306	Disposed	2015-04-20	FactSet Common Stock (2306)	Direct
2010-10-13	Non-Qualified Stock Option (right to buy)	$43.39	M	10192	Disposed	2013-08-14	FactSet Common Stock (10192)	Direct
2010-10-13	Non-Qualified Stock Option (right to buy)	$43.39	M	9210	Disposed	2013-08-14	FactSet Common Stock (9210)	Direct
2010-10-13	Non-Qualified Stock Option (right to buy)	$59.36	M	7955	Disposed	2014-08-14	FactSet Common Stock (7955)	Direct
2010-10-13	Non-Qualified Stock Option (right to buy)	$65.67	M	5544	Disposed	2015-08-14	FactSet Common Stock (5544)	Direct
2010-10-13	Non-Qualified Stock Option (right to buy)	$35.8	M	2484	Disposed	2015-10-24	FactSet Common Stock (2484)	Direct
2010-10-13	Non-Qualified Stock Option (right to buy)	$65.67	J	20844	Disposed		FactSet Common Stock (20844)	Direct

Footnotes

F1: Column 8 has been intentionally left blank because the transaction was an exercise of a derivative security.

F2: This performance-based employee stock option grant was forfeited as the issuer did not achieve certain financial performance criteria during the two-year performance period ending August 31, 2010.