Edward M. Basile - 04 Aug 2025 Form 4 Insider Report for TransMedics Group, Inc. (TMDX)

Role: Director
Signature: By: /s/ Gerardo Hernandez, Attorney-in-Fact
Issuer symbol: TMDX
Transactions as of: 04 Aug 2025
Net transactions value: -$517,088
Form type: 4
Filing time: 05 Aug 2025, 16:30:15 UTC
Previous filing: 29 May 2025
Next filing: 31 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Basile Edward M	Director	C/O TRANSMEDICS GROUP, INC., 200 MINUTEMAN ROAD, ANDOVER	By: /s/ Gerardo Hernandez, Attorney-in-Fact	05 Aug 2025	0001773661

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TMDX	Common Stock	Options Exercise	$2,900	+4,143	+145%	$0.7000	7,009	04 Aug 2025	Direct
transaction	TMDX	Common Stock	Sale	$519,988	-4,143	-59%	$125.51	2,866	04 Aug 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	TMDX	Stock Option (Right to Buy)	Options Exercise		-4,143	-50%		4,142	04 Aug 2025	Common Stock	4,143	$0.7000	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id	Content
F1	The option is fully vested.
F2	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.

Content

The option is fully vested.

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.