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 * FRANKENFIELD MICHAEL D   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) 01/07/2008 (Street) NORWALK, CT  4. If Amendment, Date 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 (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 FactSet Common Stock 01/07/2008   M   7,987 A $ 22.0833 65,582 D   FactSet Common Stock 01/07/2008   M   5,512 A $ 22.0833 71,094 D   FactSet Common Stock 01/07/2008   M   27 A $ 22.8333 71,121 D   FactSet Common Stock 01/07/2008   M   5,717 A $ 22.8333 76,838 D   FactSet Common Stock 01/07/2008   M   2,007 A $ 17.5667 78,845 D   FactSet Common Stock 01/07/2008   M   3,750 A $ 14.9667 82,595 D

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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

$ 22.0833

01/07/2008

M

7,987

03/13/2001

03/13/2010

FactSet Common Stock

7,987

$ 53.37

215,502

D

FactSet Common Stock

$ 22.0833

01/07/2008

M

5,512

03/13/2001

03/13/2010

FactSet Common Stock

5,512

$ 53.37

209,990

D

FactSet Common Stock

$ 22.8333

01/07/2008

M

27

11/13/2001

11/13/2010

FactSet Common Stock

27

$ 53.35

209,963

D

FactSet Common Stock

$ 22.8333

01/07/2008

M

5,717

11/13/2001

11/13/2010

FactSet Common Stock

5,717

$ 53.35

204,246

D

FactSet Common Stock

$ 17.5667

01/07/2008

M

2,007

10/23/2002

10/23/2011

FactSet Common Stock

2,007

$ 53.35

202,239

D

FactSet Common Stock

$ 14.9667

01/07/2008

M

3,750

10/07/2003

10/07/2012

FactSet Common Stock

3,750

$ 53.36

198,489

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
FRANKENFIELD MICHAEL D 601 MERRITT 7 NORWALK, CT			Senior Vice President

Signatures

Michael D. Frankenfield		01/07/2008
**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).

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