Ownership Submission
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, 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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(Print or Type Responses)
1. Name and Address of Reporting Person *
  GEISSER ANDREA
2. Date of Event Requiring Statement (Month/Day/Year)
11/08/2005
3. Issuer Name and Ticker or Trading Symbol
IROBOT CORP [IRBT]
(Last)
(First)
(Middle)
C/O FENWAY PARTNERS, 152 WEST 57TH STREET
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10019
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 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)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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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 of Derivative Security: 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
Series D Preferred Stock   (1)   (1) Common Stock 1,069,090 $ (1) I See Footnote (2)
Series E Preferred Stock   (1)   (1) Common Stock 187,091 $ (1) I See Footnote (2)
Series F Preferred Stock   (1)   (1) Common Stock 83,739 $ (1) I See Footnote (2)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
GEISSER ANDREA
C/O FENWAY PARTNERS
152 WEST 57TH STREET
NEW YORK, NY 10019
  X      

Signatures

/s/ Glen D. Weinstein Attorney-in-fact 11/08/2005
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) The preferred stock is convertible at any time, at the holder's election, on a one-for-one basis and has no expiration date.
(2) Consists of shares held indirectly by Fenway Partners II, LLC and Fenway Partners, Inc., of which the reporting person is a managing director. The reporting person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest, if any, and this report shall not be deemed an admission that the reporting person is the beneficial owner of all of the reported shares for purposes of Section 16 or any other purpose.
 
Remarks:
Exhibit List Exhibit 24 - Power of Attorney

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