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 *
Cerda Christian
   2. Issuer Name and Ticker or Trading Symbol
IROBOT CORP [IRBT] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Operating Officer
(Last)
(First)
(Middle)
C/O IROBOT CORPORATION, 8 CROSBY DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
03/12/2019
(Street)

BEDFORD, MA 01730		 4. If Amendment, Date Original Filed(Month/Day/Year)
03/12/2019		 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
Common Stock 03/12/2019   M   639 A $ 34.3 54,729 D  
Common Stock 03/12/2019   M   642 A $ 32.38 55,371 D  
Common Stock 03/12/2019   M   708 A $ 33.14 56,079 D  
Common Stock 03/12/2019   M   914 A $ 37.62 56,993 D  
Common Stock 03/12/2019   M   298 A $ 39.09 57,291 D  
Common Stock 03/12/2019   S(1)   2,396 D $ 121.4805 (2) 54,895 D  
Common Stock 03/12/2019   S(1)   5,403 D $ 122.1718 (3) 49,492 D  
Common Stock 03/12/2019   S(1)   2,434 D $ 123.6492 (4) 47,058 D  
Common Stock 03/12/2019   S(1)   3,944 D $ 124.221 (5) 43,114 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Employee Stock Option (Right to buy) $ 34.3 03/12/2019   M     639   (6) 03/06/2022 Common Stock 639 $ 0 0 D  
Employee Stock Option (Right to buy) $ 32.38 03/12/2019   M     642 06/05/2015(7) 06/05/2022 Common Stock 642 $ 0 642 D  
Employee Stock Option (Right to buy) $ 33.14 03/12/2019   M     708 03/11/2016(7) 03/11/2023 Common Stock 708 $ 0 2,834 D  
Employee Stock Option (Right to buy) $ 37.62 03/12/2019   M     914 06/10/2016(7) 06/10/2023 Common Stock 914 $ 0 4,570 D  
Employee Stock Option (Right to buy) $ 39.09 03/12/2019   M     298 09/09/2016(7) 09/09/2023 Common Stock 298 $ 0 1,790 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Cerda Christian
C/O IROBOT CORPORATION
8 CROSBY DRIVE
BEDFORD, MA 01730		       Chief Operating Officer  

Signatures

 /s/ Glen D. Weinstein, Attorney-in-Fact   03/14/2019
**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 sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 7, 2018, and amended February 14, 2019 and March 1, 2019.
(2) The range of prices for the transaction reported on this line was $120.73 to $121.72. The average weighted price was $121.4805. The reporting person will provide, upon request by the SEC, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(3) The range of prices for the transaction reported on this line was $121.76 to $122.67. The average weighted price was $122.1718. The reporting person will provide, upon request by the SEC, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(4) The range of prices for the transaction reported on this line was $122.89 to $123.87. The average weighted price was $123.6492. The reporting person will provide, upon request by the SEC, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(5) The range of prices for the transaction reported on this line was $123.90 to $124.88. The average weighted price was $124.221. The reporting person will provide, upon request by the SEC, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
(6) This option is currently exercisable.
(7) This option vests over a four-year period, at a rate of twenty-five percent (25%) on the first anniversary of the date listed in the table, and quarterly thereafter.
 
Remarks:
This Form 4/A is being filed to add transaction lines in Tables I and II to reflect the exercise of stock options prior to the same-day sales of shares previously reported in the original Form 4, filed on March 12, 2019 (the "Original Form 4"). Each of the same-day sale transactions reported in this Form 4/A were also previously reported in the Original Form 4. This Form 4/A also corrects the footnotes associated with the same-day sales to reflect that the 10b5-1 plan pursuant to which the sales were made has been previously amended. No other amendments or changes have been made to the Original Form 4.

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