X0303 4 2011-04-01 0 0001159167 IROBOT CORP IRBT 0001341213 Weinstein Glen Daniel C/O IROBOT CORPORATION 8 CROSBY DRIVE BEDFORD MA 01730 0 1 0 0 SVP and General Counsel Common Stock 2011-04-01 4 M 0 2000 4.96 A 30399 D Common Stock 2011-04-01 4 S 0 2000 33.1252 D 28399 D Common Stock 2011-04-01 4 A 0 5750 0.00 A 34149 D Employee Stock Option (Right to Buy) 4.96 2011-04-01 4 M 0 2000 0.00 D 2006-02-23 2015-02-23 Common Stock 2000 44000 D Employee Stock Option (Right to Buy) 33.48 2011-04-01 4 A 0 11375 0.00 A 2018-04-01 Common Stock 11375 11375 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 15, 2010. The range of prices for the transaction reported on this line was $33.00 to $33.20. The average weighted price was $33.1252. 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. Consists of a restricted stock unit award made pursuant to the iRobot Corporation 2005 Stock Option and Incentive Plan. The restricted stock units vest over a four-year period, at a rate of twenty-five percent (25%) on each anniversary of the grant. Vested shares will be delivered to the reporting person as soon as practicable following each vesting date, but in no event later than 30 days after each such vesting date. This option is currently exercisable. This option vests over a four-year period, at a rate of twenty-five percent (25%) on the first anniversary of the grant, and quarterly thereafter. /s/ Glen D. Weinstein 2011-04-04