TransMedics Group, Inc. Investor News: Rosen Law Firm Announces Investigation of Breaches of Fiduciary Duties by the Directors and Officers of TransMedics Group, Inc. – TMDX businesswire.com August 3, 2026 at 7:25 PM ET TMDX Rosen Law Firm is investigating potential breaches of fiduciary duties by the directors and officers of TransMedics Group, Inc. This indicates serious concerns and potential wrongdoing, which is negative for the company's stock.