form4-mfd2.htm

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 4

Statement of Changes in Beneficial Ownership



Filed pursuant to section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Act of 1935 or Section 30(f) of the Investment Company Act of 1940

  1. Name and Address of Reporting Person:

           Thomas, Townsend
           FactSet Research Systems Inc.
           One Greenwich Plaza
           Greenwich, CT 06830

  2. Issuer Name and Ticker or Trading Symbol:

           FactSet Research Systems Inc. (FDS)

  3. IRS Number of Reporting Person, if an entity (voluntary)

            N/A

  4. Statement for Month/Year:

           October 2001

  5. If Amendment, Date of Original ( Month/Year):

            N/A

  6. Relationship of Reporting Person to Issuer:

           ( ) Director    (X) Officer (*give title below)   ( ) 10% Owner

           ( ) Other (specify below)

           * Senior Vice President and Chief Technology Officer

  7. Individual or Joint/Group Filing (Check Applicable Line)

           (X) Form filed by one reporting person

           ( ) Form filed by more then one reporting person








TABLE  I  -  NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED

      4. Securities Acquired (A)
3. Transaction Code
 or Disposed (D)
1. Title of Security 2. Transaction Date Code              V Amount (A) or (D) Price
FactSet Research Systems 09/01/01 A                366      A $25.35
Inc. 09/10/01 A                60,000      A $23.99
Common Stock 09/21/01 A                287      A $23.20


  1. Amount of Securities Beneficially Owned at End of Month

           347,321

  2. Ownership Form:   Direct (D) or Indirect (I)

           D

  3. Nature of Indirect Beneficial Ownership

           N/A


TABLE II    -   DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
(e.g., puts, calls, warrants, options, convertible securities)
1.  Title of 2.  Conversion or 3.  Transaction 4.  Transaction 5.  Number of Derivative
      Derivative       Exercise Price       Date       Code      Securities Acquired  (A)
      Security       of Derivative                     or Disposed  (D)
      Security       
      Code          V (A)              (D)
       Stock Options $00.90 09/10/01     M           N/A                         60,000
       Stock Options $26.35 10/23/01     A           N/A 15,000                        


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

           20% of option grant is exercisable on October 23, 2002.
           The remaining options vest 1.67% monthly thereafter for the next four years.

  2. Title and Amount of Underlying Securities

           FactSet Research Systems Inc. - 15,000 Common Shares

  3. Price of Derivative Security

           N/A



  4. Number of Derivative Securities Beneficially Owned at End of Month

           92,500

  5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)

           D

  6. Nature of Indirect Beneficial Ownership

           N/A



Explanation of Responses:







 
Signature of Reporting Person
       
Date: November 9, 2001 /s/  Townsend Thomas
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Townsend Thomas