X0206 3 2019-05-01 0 0001756262 TransMedics Group, Inc. TMDX 0001773663 Provost Miriam C/O TRANSMEDICS GROUP, INC. 200 MINUTEMAN ROAD ANDOVER MA 01810 0 1 0 0 VP of US Regulatory & FDA Rel. Stock Option (Right to Buy) 3.22 2028-04-05 Common Stock 28571 D The option vested 25% on the first anniversary of the vesting commencement date, February 20, 2018, and at a rate of 2.0833% each month thereafter until the option is fully vested on the fourth anniversary of the vesting date. As of the date of this Form 3, the Stock Option reported herein is an option 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. Exhibits List: Exhibit 24 - Power of Attorney /s/ Stephen Gordon, Attorney-in-Fact 2019-05-01