X0306 4 2021-03-19 0 0001159167 IROBOT CORP IRBT 0001341213 Weinstein Glen Daniel C/O IROBOT CORPORATION 8 CROSBY DRIVE BEDFORD MA 01730 0 1 0 0 EVP and Chief Legal Officer Common Stock 2021-03-19 4 M 0 8500 33.14 A 57233 D Common Stock 2021-03-19 4 M 0 7325 37.62 A 64558 D Common Stock 2021-03-19 4 S 0 3820 117.586 D 60738 D Common Stock 2021-03-19 4 S 0 7798 118.4782 D 52940 D Common Stock 2021-03-19 4 S 0 3209 119.3523 D 49731 D Common Stock 2021-03-19 4 S 0 3072 120.1015 D 46659 D Common Stock 2021-03-23 4 S 0 1373 125.00 D 45286 D Employee Stock Option (Right to buy) 33.14 2021-03-19 4 M 0 8500 0.00 D 2023-03-11 Common Stock 8500 0 D Employee Stock Option (Right to buy) 37.62 2021-03-19 4 M 0 7325 0.00 D 2023-06-10 Common Stock 7325 0 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 17, 2021. The range of prices for the transaction reported on this line was $116.93 to $117.91. The average weighted price was $117.5860. The reporting person will provide, upon request by the Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price. The range of prices for the transaction reported on this line was $117.98 to $118.95. The average weighted price was $118.4782. The reporting person will provide, upon request by the Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price. The range of prices for the transaction reported on this line was $118.98 to $119.96. The average weighted price was $119.3523. The reporting person will provide, upon request by the Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price. The range of prices for the transaction reported on this line was $120.00 to $120.40. The average weighted price was $120.1015. The reporting person will provide, upon request by the Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price. This option is currently exercisable. /s/ Glen D. Weinstein 2021-03-23