Patrick Sullivan is an experienced executive with an outstanding track record in managing early stage medical device and diagnostics ventures through all phases of growth.  He is currently Managing Partner of ATON Partners, LLC and is President & Chief Executive Officer of Insulet Corporation (PODD).  Prior to these roles Mr. Sullivan served as Chairman & CEO of Constitutional Medical Investors from 2008 until its sale to Roche Diagnostics Hematology in July 2013.  From 1991 through 2007 Mr. Sullivan served in a variety of senior executive positions with Cytyc Corporation including Chairman, President and Chief Executive Officer until the acquisition of Cytyc Corporation by Hologic Corporation in October of 2007.  Prior to joining Cytyc, Mr. Sullivan was employed in several senior marketing positions by Abbott Laboratories, a diversified healthcare company, and was a consultant with McKinsey & Company, an international management-consulting firm.  Mr. Sullivan holds a Bachelor of Science degree, with Distinction, from the United States Naval Academy and a Master of Business Administration degree, with Distinction, from Harvard Business School.  Mr. Sullivan is a Director of CereVasc, Perkin-Elmer Corporation and Theragenics Corporation.