X0306 4 2021-11-29 0 0001756262 TransMedics Group, Inc. TMDX 0001255927 KANIA EDWIN M JR C/O TRANSMEDICS GROUP, INC. 200 MINUTEMAN ROAD ANDOVER MA 01810 1 0 0 0 Common Stock 2021-11-29 4 P 0 25938 22.14 A 228831 D Common Stock 2021-11-29 4 P 0 74062 22.71 A 302893 D The price reported is a weighted average price. These shares were purchased in multiple transactions ranging from $21.65 to $22.64, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range. The price reported is a weighted average price. These shares were purchased in multiple transactions ranging from $22.65 to $22.75, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range. By: /s/ Stephen Gordon, as Attorney-in-Fact 2021-11-30