Ownership Submission
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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(Print or Type Responses)
1. Name and Address of Reporting Person *
TRIDENT CAPITAL MANAGEMENT V LLC
  2. Issuer Name and Ticker or Trading Symbol
IROBOT CORP [IRBT]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O TRIDENT CAPITAL, 505 HAMILTON AVENUE, SUITE 200
3. Date of Earliest Transaction (Month/Day/Year)
11/15/2005
(Street)

PALO ALTO, CA 94301
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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
Common Stock 11/15/2005   C   2,089,237 A $ 0 (1) 2,089,237 I See Footnote (2)
Common Stock 11/15/2005   C   1,871,615 A $ 0 (1) 1,871,615 I See Footnote (3)
Common Stock 11/15/2005   C   10,380 A $ 0 (1) 10,380 I See Footnote (4)
Common Stock 11/15/2005   C   10,878 A $ 0 (1) 10,878 I See Footnote (5)
Common Stock 11/15/2005   C   54,171 A $ 0 (1) 54,171 I See Footnote (6)
Common Stock 11/15/2005   C   142,193 A $ 0 (1) 142,193 I See Footnote (7)
Common Stock 11/15/2005   S   68,249 (8) D $ 24 2,020,988 I See Footnote (2)
Common Stock 11/15/2005   S   61,140 (8) D $ 24 1,810,475 I See Footnote (3)
Common Stock 11/15/2005   S   339 (8) D $ 24 10,041 I See Footnote (4)
Common Stock 11/15/2005   S   355 (8) D $ 24 10,523 I See Footnote (5)
Common Stock 11/15/2005   S   1,770 (8) D $ 24 52,401 I See Footnote (6)
Common Stock 11/15/2005   S   4,645 (8) D $ 24 137,548 I See Footnote (7)

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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
Series E Preferred Stock (1) 11/15/2005   C     1,933,184   (1)   (1) Common Stock 1,933,184 $ 0 0 I See Footnote (2)
Series F Preferred Stock (1) 11/15/2005   C     156,053   (1)   (1) Common Stock 156,053 $ 0 0 I See Footnote (2)
Series E Preferred Stock (1) 11/15/2005   C     1,731,817   (1)   (1) Common Stock 1,731,817 $ 0 0 I See Footnote (3)
SeriesF Preferred Stock (1) 11/15/2005   C     139,798   (1)   (1) Common Stock 139,798 $ 0 0 I See Footnote (3)
Series E Preferred Stock (1) 11/15/2005   C     9,605   (1)   (1) Common Stock 9,605 $ 0 0 I See Footnote (4)
Series F Preferred Stock (1) 11/15/2005   C     775   (1)   (1) Common Stock 775 $ 0 0 I See Footnote (4)
Series E Preferred Stock (1) 11/15/2005   C     10,065   (1)   (1) Common Stock 10,065 $ 0 0 I See Footnote (5)
Series F Preferred Stock (1) 11/15/2005   C     813   (1)   (1) Common Stock 813 $ 0 0 I See Footnote (5)
Series E Preferred Stock (1) 11/15/2005   C     50,125   (1)   (1) Common Stock 50,125 $ 0 0 I See Footnote (6)
Series F Preferred Stock (1) 11/15/2005   C     4,046   (1)   (1) Common Stock 4,046 $ 0 0 I See Footnote (6)
Series E Preferred Stock (1) 11/15/2005   C     131,572   (1)   (1) Common Stock 131,572 $ 0 0 I See Footnote (7)
Series F Preferred Stock (1) 11/15/2005   C     10,621   (1)   (1) Common Stock 10,621 $ 0 0 I See Footnote (7)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
TRIDENT CAPITAL MANAGEMENT V LLC
C/O TRIDENT CAPITAL
505 HAMILTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
TRIDENT CAPITAL FUND V AFFILIATES FUND LP
C/O TRIDENT CAPITAL
505 HAMILTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
TRIDENT CAPITAL FUND V PRINCIPALS FUND L P
C/O TRIDENT CAPITAL
505 HAMILTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
TRIDENT CAPITAL PARALLEL FUND V CV
C/O TRIDENT CAPITAL
505 HAMILTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
TRIDENT CAPITAL FUND V AFFILIATES FUND Q LP
C/O TRIDENT CAPITAL
505 HAMILTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
TRIDENT CAPITAL FUND V LP
C/O TRIDENT CAPITAL
505 HAMILTON AVENUE, SUITE 200
PALO ALTO, CA 34301
    X    

Signatures

 /s/ Bonnie N. Kennedy, Managing Director, Trident Capital Management V, L.L.C.   11/15/2005
**Signature of Reporting Person Date

 /s/ Bonnie N. Kennedy, Managing Director, Trident Capital Fund-V Affiliates Fund, L.P.   11/15/2005
**Signature of Reporting Person Date

 /s/ Bonnie N. Kennedy, Managing Director, Trident Capital Fund-V Principals Fund, L.P.   11/15/2005
**Signature of Reporting Person Date

 /s/ Bonnie N. Kennedy, Managing Director, Trident Capital Parallel Fund-V, C.V.   11/15/2005
**Signature of Reporting Person Date

 /s/ Bonnie N. Kennedy, Managing Director, Trident Capital Fund-V Affiliates Fund (Q), L.P.   11/15/2005
**Signature of Reporting Person Date

 /s/ Bonnie N. Kennedy, Managing Director, Trident Capital Fund-V, L.P.   11/15/2005
**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) The preferred stock automatically converted upon the consummation of the Issuer's initial public offering on a one-for-one basis.
(2) Consists of shares held indirectly by Trident Capital Management-V, L.L.C. as sole general partner of Trident Capital Fund-V, L.P., Trident Capital Fund-V Affiliates Fund, L.P., Trident Capital Fund-V Affiliates Fund (Q), L.P., and Trident Capital Fund-V Principals Fund, L.P. and the sole investment general partner of Trident Capital Parallel Fund-V, C.V. 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.
(3) Consists of shares owned by Trident Capital Fund-V, L.P.
(4) Consists of shares owned by Trident Capital Fund-V Affiliates Fund (Q), L.P.
(5) Consists of shares owned by Trident Capital Fund-V Affiliates Fund, L.P.
(6) Consists of shares owned by Trident Capital Fund-V Principals Fund, L.P.
(7) Consists of shares owned by Trident Capital Parallel Fund-V, C.V.
(8) Shares sold pursuant to the exercise of the over-allotment option in connection with the intial public offering of common stock of iRobot Corporation.

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