Martin D. Madaus, Ph.D. has served as a member of our Board of Directors on behalf of the holders of our Series B-2 Preferred Stock since April 2022. Dr. Madaus has served as senior healthcare operating executive of The Carlyle Group, a multinational private equity, alternative asset management and financial services corporation, since February 2019. From June 2014 to February 2019, Dr. Madaus served as chairman and chief executive officer at Ortho-Clinical Diagnostics, Inc., a diagnostics company that makes products and diagnostic equipment for blood testing. Dr. Madaus previously served as chief executive officer of Quanterix Corporation, a life sciences company, from October 2011 to July 2012 and its President from June 2011 to July 2012. . Previously, Dr. Madaus was the chairman, president and chief executive officer of Millipore Corporation (MIL), a life sciences company serving the bioscience research and biopharmaceutical manufacturing industry, from January 2005 to July 2010, when Millipore was acquired by Merck KGaA. From July 2009 to May 2015, Dr. Madaus served as a member of the board of directors of Mettler Toledo International, a manufacturer of scales and analytical instruments. Dr. Madaus currently serves as a member of the boards of directors of Quanterix Corporation (Nasdaq: QTRX), Candela Corporation, Ultivue Inc., Emulate, Inc. and Unchained Labs. Dr. Madaus received a Doctor of Veterinary Medicine from the University of Munich in Germany and a Ph.D. in Veterinary Medicine from the Veterinary School of Hanover in Germany.