X0306 4 2014-06-30 0001145197 INSULET CORP PODD 0001163760 SOBIESKI STEVEN C/O INSULET CORPORATION 9 OAK PARK DRIVE BEDFORD MA 01730 1 Common Stock 2014-06-30 4 S 0 8000 40.00 D 12000 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 12, 2014. Includes 1,000 restricted stock units granted on June 1, 2012 which vest on April 30, 2015; 2,000 restricted stock units granted on June 3, 2013 which vest 50% of the total units on April 30, 2015 and 50% of the total units on April 30, 2016; and 4,000 restricted stock units granted on June 2, 2014 which vest 50% of the total units on April 30, 2015, 25% of the total units on April 30, 2016 and 25% of the total units on April 30, 2017, subject to continued service as a director or consultant. Vested shares will be delivered to the reporting person as soon as practicable following a vesting date. /s/ R. Anthony Diehl, attorney in fact 2014-06-30