X0306 4 2019-02-26 0001145197 INSULET CORP PODD 0001707443 Christensen Bret C/O INSULET CORPORATION 100 NAGOG PARK ACTON MA 01720 1 EVP and CCO Common Stock 2019-02-26 4 A 0 3665 0 A 14496 D Employee Stock Option (Right to Buy) 92.11 2019-02-26 4 A 0 9532 0 A 2029-02-26 Common Stock 9532 9532 D The 3,665 restricted stock units vest one-third of the total units on February 26, 2020, one-third of the total units on February 26, 2021, and one-third of the total units on February 26, 2022, subject to continued employment. Vested shares will be delivered to the reporting person as soon as practicable following a vesting date. Includes 4,671 restricted stock units granted on May 26, 2017, which vest one-half of the total units on May 26, 2019 and one-half of the total units on May 26, 2020; and 3,132 restricted stock units granted on February 14, 2018, which vest one-half of the total units on February 14, 2020 and one-half of the total units on February 14, 2021, subject to continued employment. Vested shares will be delivered to the reporting person as soon as practicable following a vesting date. This option is subject to a four-year vesting period with 25% of the total award vesting on each of the first, second, third and fourth anniversaries of the grant date , subject to continued employment. /s/ David Colleran, attorney-in-fact 2019-02-28