Effective September 7, 2022, CareDx Inc. appointed Abraham Ronai, age 49, as the Company's Chief Administrative & Legal Officer and Secretary. There are no reportable family relationships or related party transactions (as defined in Item 404(a) of Regulation S-K) involving the Company and Mr. Ronai. Mr. Ronai has served as the Company's General Counsel since September 2021.

Prior to joining the Company, Mr. Ronai spent 11 years at Getinge AB, a global medical technology company, holding various leadership roles, including Global General Counsel. Prior to Getinge, Mr. Ronai worked at two well-respected law firms in Manhattan and at Datascope Corp., a Nasdaq-listed medical device company. Mr. Ronai also served as a professor for patent litigation at Concord Law School.

He earned his Bachelor of Science in Mechanical Engineering from Cornell University and his Juris Doctor from the Benjamin N. Cardozo School of Law at Yeshiva University. Mr. Ronai is Registered In-House Counsel in California, and admitted to practice law in New York and New Jersey. Effective September 7, 2022, Alexander L. Johnson transitioned from his role as Chief Business Officer and Head of Testing Services to the role of President of Patient and Testing Services.

Mr. Johnson will remain an executive officer of the Company and an officer for purposes of Section 16 of the Securities Exchange Act of 1934, as amended.