Daniel Mahoney Form 3

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Washington, D.C. 20549



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

1. Name and Address of Reporting
2. Date of Event Requiring Statement
3. I.R.S. Identification Number of Reporting
Person, if an entity
  Mahoney, Daniel
(Last) (First) (Middle)
  c/o Forrester Research 400 Technology Square

4. Issuer Name and Ticker or Trading Symbol 5. Relationship of Reporting Person(s)
to Issuer
(Check All Applicable)
    Forrester Research, Inc. (FORR)
  o  Director o  10% Owner
      x  Officer (give title below)
    6. If Amendment, Date of Original
  o  Other (specify below)
  Cambridge, MA 02139
(City)         (State)         (Zip)

  Vice President, Giga Research
      7. Individual or Joint/Group Filing
(Check Applicable Line)
        x Form Filed by One Reporting Person
                o Form Filed by More than One Reporting Person

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).


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)











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Table II — Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative

(Instr. 4)
2. Date Exercisable and
Expiration Date

3. Title and Amount of Securities
Underlying Derivative Security

(Instr. 4)
4. Conversion or
Exercise Price
of Derivative
5. Ownership Form of
Derivative Security:
Direct (D) or Indirect (I)

(Instr. 5)
6. Nature of

(Instr. 5)

of Shares

  Incentive Stock Option (right to buy)   (1) 03/30/13   Common Stock 15,000 $14.7300   D  










Explanation of Responses:

(1) The Options become exercisable in four equal installments on the first, second, third, and fourth anniversaries of the grant date.


**Signature of Reporting Person
By:  Kimberly Maxwell
For: Daniel Mahoney

**   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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      I hereby constitute and appoint each of Timothy Moynihan, Kimberly Maxwell and Brittany Roberts signing singly, my true and lawful attorney-in-fact to:

  (1)  execute for and on my behalf, in my capacity as an officer and/or director of Forrester Research, Inc. (the “Company”), Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;
  (2)  do and perform any and all acts for and on my behalf that may be necessary or desirable to complete and execute any such Form 3, 4 or 5 and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and
  (3)  take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be to my benefit, in my best interest, or that I am legally required to do, it being understood that the documents executed by such attorney-in-fact on my behalf pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.

      I hereby grant to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as I might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. I acknowledge that the attorneys-in-fact, in serving in such capacity at my request, are not assuming, nor is the Company assuming, any of my responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

      This Power of Attorney shall remain in full force and effect until I am no longer required to file Forms 3, 4 and 5 with respect to my holdings of and transactions in Company securities, unless I earlier revoke it in a signed writing delivered to the attorneys-in-fact.

      IN WITNESS WHEREOF, I have caused this Power of Attorney to be executed as of this 1 day of April, 2003.

  /s/ Daniel Mahoney
  Daniel Mahoney
  Print Name

Drafter’s Note: In filing a Section 16(a) report on behalf of a reporting person, an attorney-in-fact should indicate after the signature line on the form that he or she is signing as such. The Power of Attorney should be attached to and filed with the report, if it has not previously been filed with the Commission. If it is not practicable to file the Power of Attorney at the time of filing of the original report, it should be filed as soon as practicable as an amendment to the original filing. The Power of Attorney need not be filed with subsequent reports.