X0303 4 2010-05-10 0 0001113784 CARDIONET INC BEAT 0001493799 Gropper Charles 227 WASHINGTON STREET, #300 CONSHOHOCKEN PA 19428 0 1 0 0 Senior Vice President Common Stock 2010-05-10 4 A 0 2744 0 A 24484 D Stock Option (right to buy) 8.79 2010-05-10 4 A 0 3811 0 A 2020-05-10 Common Stock 3811 3811 D Represents shares of the Issuer's common stock underlying restricted stock units (RSUs) awarded to the Reporting Person. The RSUs will vest in full on the third anniversary of the grant date, subject to accelerated vesting upon certain terminations of employment following certain corporate transactions involving the Issuer. The shares of common stock underlying the RSUs will be issued when the RSUs vest. Includes 2,744 shares of the Issuer's common stock subject to the reported RSU award. Twenty-five percent (25%) of the shares subject to the option shall vest in four equal annual installments commencing on the first anniversary of the Vesting Commencement Date, December 31, 2010. /s/ Catherine A. Petko, by power of attorney 2010-06-16