William D. McClellan Jr.

Since May 2014, Mr. McClellan has served as a member of our Board. Since January 2018, Mr. McClellan has served as the Chief Financial Officer of Aerin Medical Inc. Since April 2016, Mr. McClellan has served as a financial management consultant to healthcare and life sciences companies, serving as the managing member of Goodwater Consulting, LLC. From June 2004 until June 2016, Mr. McClellan was the Chief Financial Officer and Executive Vice President, Finance at On-X Life Technologies Holdings, Inc., a medical device manufacturer. He currently serves on the Board of Directors of Reata Pharmaceuticals, Inc., a publicly-traded pharmaceutical company, and chairs its audit committee. Mr. McClellan received a B.B.A. in accounting from Abilene Christian University and is a Certified Public Accountant. We believe that Mr. McClellan is qualified to serve on our Board due to his extensive finance and accounting expertise in the medical device industry and as a certified public accountant.