John W. Hanna is CareDx’s President and Chief Executive Officer (CEO). John brings to CareDx over two decades of executive leadership at the intersection of new technology development and revenue growth in the molecular diagnostics and life sciences tools industries. John previously served as Chief Executive Officer of Apton Biosystems, Inc., where he led the development of a high throughput next-generation sequencing (NGS) platform for liquid biopsy and other clinical applications. Apton Biosystems, Inc. was acquired by Pacific Biosciences of California, Inc. in August 2023, where he served as Vice President of Corporate Development. John previously spent ten years at Veracyte, Inc., from September 2011 to March 2021, an oncology diagnostics company in the fields of thyroid, lung, breast, and prostate cancer, where he held numerous roles including Chief Commercial Officer and Vice President of Marketing. Prior to Veracyte, John held leadership roles at Humana and IBM. John received a B.S. in Political Science from Hampden Sydney College in 2001 and an MBA from the University of Miami in 2008.