X0306 4 2019-05-06 0 0001756262 TransMedics Group, Inc. TMDX 0001773661 Basile Edward M C/O TRANSMEDICS GROUP, INC. 200 MINUTEMAN ROAD ANDOVER MA 01810 1 0 0 0 Common Stock 2019-05-06 4 C 0 14314 A 14314 D Common Stock 2019-05-06 4 P 0 8500 16.00 A 22814 D Series F Convertible Preferred Stock 2019-05-06 4 C 0 50100 D Common Stock 14314 0 D Stock Option (Right to Buy) 0.20 2019-05-06 4 J 0 67500 D 2026-02-16 Common Stock 19285 0 D Stock Option (Right to Buy) 0.70 2019-05-06 4 J 0 19285 A 2026-02-16 Common Stock 19285 19285 D The Preferred Stock reported herein is preferred 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 as of April 15, 2019 (the "Merger Agreement"), such preferred stock of TransMedics, Inc. was converted into shares of common stock of the Issuer based on (i) the one-for-one ratio on which such shares of preferred stock of TransMedics Inc. were convertible into shares of common stock of TransMedics Inc. according to their terms and (ii) the 3.5-for-one ratio on which shares of common stock of TransMedics, Inc. were converted into shares of common stock of the Issuer (the "Conversion"). The Preferred Stock has no expiration date. The Stock Option reported herein as being disposed of 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 Merger Agreement, each outstanding option to purchase shares of common stock of TransMedics, Inc. was 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 option is fully vested. /s/ Stephen Gordon, Attorney-in-Fact 2019-05-06