FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * KENNEDY KIERAN M.   2. Issuer Name and Ticker or Trading Symbol FACTSET RESEARCH SYSTEMS INC [FDS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Senior Vice President (Last) (First) (Middle) 601 MERRITT 7 3. Date of Earliest Transaction (Month/Day/Year) 08/14/2008 (Street) NORWALK, CT 06851 4. If Amendment, Date Original Filed(Month/Day/Year) 08/21/2008 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

FactSet Common Stock

$ 65.67

08/14/2008

A

13,278

08/14/2009(1)

08/14/2015

FactSet Common Stock

13,278

$ 0

119,707

D

FactSet Common Stock

$ 65.67

08/14/2008

A

20,819

08/14/2010(2)

08/14/2015

FactSet Common Stock

20,819

$ 0

140,526

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KENNEDY KIERAN M. 601 MERRITT 7 NORWALK, CT 06851			Senior Vice President

Signatures

Kieran M. Kennedy		08/27/2008
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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).
(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)	This option 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 41.67% after the two-year performance period with the remainder vesting at 1.67% per month thereafter.
Remarks: This Form 4 amends the previously filed Form 4 on August 21, 2008. The reported number of stock options granted in the previously filed Form 4 was incorrect due to an inadvertent error. As such, this Form 4/A reports the corrected number of stock options granted.

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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