SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Stern Rachel Rebecca (Last) (First) (Middle) 601 MERRITT 7 (Street) NORWALK CT 06851 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/10/2013	3. Issuer Name and Ticker or Trading Symbol FACTSET RESEARCH SYSTEMS INC [ FDS ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Senior Vice President	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
FactSet Common Stock	1,203(3)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-Qualified Stock Option (right to buy)	04/20/2006(1)	04/20/2015	FactSet Common Stock	875	29	D
Non-Qualified Stock Option (right to buy)	08/14/2008(1)	08/14/2014	FactSet Common Stock	1,546	59.36	D
Non-Qualified Stock Option (right to buy)	08/14/2009(1)	08/14/2015	FactSet Common Stock	3,527	65.67	D
Non-Qualified Stock Option (right to buy)	10/24/2009(1)	10/24/2015	FactSet Common Stock	1,720	35.8	D
Non-Qualified Stock Option (right to buy)	10/23/2010(1)	10/23/2016	FactSet Common Stock	4,583	66.46	D
Non-Qualified Stock Option (right to buy)	11/01/2012(1)	11/01/2021	FactSet Common Stock	2,680	94.84	D
Non-Qualified Stock Option (right to buy)	11/01/2013(1)	11/01/2022	FactSet Common Stock	3,761	92.22	D
Non-Qualified Stock Option (right to buy)	11/01/2013(2)	11/01/2022	FactSet Common Stock	6,164	92.22	D

Explanation of Responses:

1. Twenty percent of this option grant is exercisable one year after the grant date, with the remainder vesting at a rate of 1.67% per month thereafter.

2. These options shall become exercisable based on the achievement by the issuer of certain financial performance criteria. Options that do not vest at the end of a two-year performance period will be forfeited. Options that become exercisable vest 40% after the two-year performance period with the remainder vesting at 1.67% per month thereafter.

3. Represents restricted stock awards which vest over 5 years at a rate of 60% after 3 years and the remaining 40% after 5 years, subject to continued employment.

	/s/ Rachel R. Stern	10/10/2013
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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