Mr. Pietzke has served as our Vice President, Finance and Chief Accounting Officer since March 2020. Prior to joining us, he served as Senior Vice President, Finance and Chief Accounting Officer at Tricida, Inc., a biotechnology company, from April 2018 to March 2020. From June 2015 to April 2018, Mr. Pietzke served as Vice President, Finance and Chief Accounting Officer at PDL BioPharma. From July 2013 to June 2015, he served as a Senior Manager with Ernst & Young LLP, a professional services firm. From September 2000 to June 2013, Mr. Pietzke was with PricewaterhouseCoopers LLP, a professional services firm, where he served most recently as a Senior Manager. He holds a Bachelor of Business Science in Accounting from the University of Applied Sciences in Offenburg, Germany and is a certified public accountant.