DermTech: Bret Christensen, John Dobak

DermTech has appointed Bret Christensen as president, CEO, and a board member. He succeeds John Dobak who stepped down from the roles. Christensen had been the chief commercial officer of diabetes-focused medical device firm Insulet. Prior to that, he was general manager of preventive care at Myriad Genetics. He also held several executive positions at Hologic, including VP of sales and marketing for the firm's gynecologic surgical products.