X0306 4 2023-02-17 0001145197 INSULET CORP PODD 0001707443 Christensen Bret C/O INSULET CORPORATION 100 NAGOG PARK ACTON MA 01720 1 EVP and CCO Common Stock 2023-02-17 4 F 0 153 296.00 D 16199 D Common Stock 2023-02-17 4 A 0 3108 0 A 19307 D Common Stock 2023-02-17 4 F 0 1041 296.00 D 18266 D This transaction represents the withholding of shares upon the vesting of restricted stock units to cover the associated tax obligations. Represents shares issued upon the satisfaction of performance criteria related to Performance Share Units ("PSUs"). The PSUs were settled in shares of common stock on a one-for-one basis. This transaction represents the withholding of shares upon the vesting of performance share units to cover the associated tax obligations. /s/ Patricia K. Dolan, attorney-in-fact 2023-02-21