X0206 3 2019-05-01 0 0001756262 TransMedics Group, Inc. TMDX 0001774272 Carey John F C/O TRANSMEDICS GROUP, INC. 200 MINUTEMAN ROAD ANDOVER MA 01810 0 1 0 0 VP of Operations Stock Option (Right to Buy) 57.75 2020-12-16 Common Stock 262 D Stock Option (Right to Buy) 0.39 2021-09-27 Common Stock 14894 D Stock Option (Right to Buy) 0.28 2023-03-27 Common Stock 10000 D Stock Option (Right to Buy) 0.28 2023-05-29 Common Stock 28146 D Stock Option (Right to Buy) 2.21 2027-06-22 Common Stock 24437 D As of the date of this Form 3, the Stock Options reported herein are options to purchase common stock of TransMedics, Inc. Immediately prior to the closing of the Issuer's initial public offering, pursuant to the terms of the Agreement and Plan of Merger and Reorganization by and among the Issuer, TransMedics, Inc. and TMDX, Inc., dated April 15, 2019 (the "Merger Agreement"), each outstanding option to purchase shares of common stock of TransMedics, Inc. will be converted into an outstanding option to purchase shares of common stock of the Issuer adjusted on a 3.5-for-one basis, with a corresponding adjustment to the exercise price. The number of shares in Column 3 reflects the Reporting Person's holdings following such conversion and the exercise price in Column 4 reflects the exercise price following such conversion. The option is fully vested. The option vests as a rate of 2.0833% of the total number of shares each month until the option is fully vested on the fourth anniversary of the vesting commencement date, June 22, 2017. Exhibit List: Exhibit 24 - Power of Attorney /s/ Stephen Gordon, Attorney-in-Fact 2019-05-01