Management Team
Scott Mendel
President and Chief Executive Officer
Mr. Mendel was named President and Chief Executive Officer in May 2020. He was promoted to Chief Operating Officer in February 2019 after serving as the Chief Financial Officer since joining GenMark in May 2014. Mr. Mendel has over 25 years of financial and operational leadership experience and has held various leadership positions with The Active Network and GE Healthcare. Mr. Mendel earned a B.S. in finance from Indiana University and an M.B.A. from Northwestern University’s Kellogg School of Management.
Johnny Ek
Chief Financial Officer
Mr. Ek has served as Chief Financial Officer since February 2019. Previously, Mr. Ek served as GenMark’s VP of Finance & Accounting and Controller from November 2013 until his appointment as Chief Financial Officer. Prior to joining GenMark, Mr. Ek served as Vice President and International Controller at Affymetrix and Corporate Controller at eBioscience, Inc. Mr. Ek also worked at Ernst & Young LLP, most recently as Senior Manager. Mr. Ek obtained his Certified Public Accounting license (currently inactive) after earning a B.S. in finance from Brigham Young University and a master’s degree in accountancy from the University of Notre Dame’s Mendoza College of Business.
Michael Gleeson
Senior Vice President, Corporate Accounts
Mr. Gleeson serves as Senior Vice President, Corporate Accounts. He was previously the Senior Vice President of North American Commercial Operations and has held various commercial sales roles within the company since joining in November 2009. Mr. Gleeson has over 15 years of sales leadership experience and has held roles with SYBASE, GuardianEdge, BEA Systems, and Cap Gemini Ernst & Young. Mr. Gleeson holds a B.S. degree in Entrepreneurial Studies from Babson College in Massachusetts.
Eric Stier
Senior Vice President, General Counsel and Secretary
Mr. Stier serves as Senior Vice President, General Counsel and Secretary of the company and has held various legal affairs roles with the company since joining in November 2012. Mr. Stier has almost 20 years of legal management experience and has held roles with Hologic, Gen-Probe, and Latham & Watkins LLP. Mr. Stier received a B.A. in Behavioral Science and Law from the University of Wisconsin-Madison and a J.D. with honors from the University of Wisconsin Law School.
Scott O’Brien
Senior Vice President, Global Marketing and International Sales
Mr. O’Brien has served as Senior Vice President, Global Marketing and International Sales of the Company since March 2020. Mr. O’Brien joined the Company in April 2012 and, prior to being appointed to his current position, Mr. O’Brien held roles of increasing responsibility within the Company’s commercial organization, including most recently serving as Vice President, Global Marketing from October 2016 through February 2020. Prior to joining the Company, Mr. O’Brien held product marketing roles for Illumina, Inc., Agilent Technologies, and Stratagene Corporation. Mr. O’Brien received a B.S. in Microbiology from the University of Wisconsin-Madison.
Tyler Jensen
Senior Vice President, Engineering and Product Technical Support
Mr. Jensen has served as Senior Vice President, Engineering and Product Technical Support since May 2019. Mr. Jensen joined the Company in June 2013 and, prior to being appointed to his current position, served as Vice President, Platform Development. Mr. Jensen has over 25 years of R&D and Engineering leadership experience and has held roles of increasing responsibility for Digirad, VOCEL Inc., Hughes Network Systems, and Motorola. Mr. Jensen earned a B.S. in Design Engineering Technology from Brigham Young University and a M.E. in Mechanical Engineering from Florida Atlantic University.
Abe Chohan
Senior Vice President, Operations
Mr. Chohan serves as Senior Vice President, Operations. He was previously Vice President of Operations at Inova Diagnostics. He has over 25 years of experience in leadership roles in various industries focused on continuous improvement, process automation and supply chain optimization. In the last 14 years, he led rapid operational expansion in the diagnostics sector. Mr. Chohan earned a B.Sc. in Chemical Engineering from the University of Rochester and an MBA in Applied Information Systems from the State University of New York at Buffalo. He is a Black Belt in Lean Six Sigma and serves on the UCSD Advisory Board for Process Improvement Programs.
Al Maderazo
Vice President, Quality, Regulatory, and Clinical Affairs
Dr. Maderazo serves as the Vice President, Quality, Regulatory, and Clinical Affairs and has held various roles with the company since joining in September 2013. Dr. Maderazo has over 20 years of quality, regulatory, and clinical experience in the medical device industry where he has championed organizational quality compliance and has established successful regulatory strategies for numerous novel molecular diagnostic products. Prior to GenMark, Dr. Maderazo held roles of increasing responsibility in Regulatory Affairs for Hologic and Abbott Vascular. Dr. Maderazo received his B.S in Molecular & Cellular Biology from the University of Connecticut and his Ph.D. in Molecular Genetics & Microbiology from the University of Massachusetts Medical Center.
Christine Shaw
Vice President, Assay Development
Dr. Shaw has served as the Vice President, Assay Development since July 2020, and has held various roles of increasing responsibility within research and development since joining the company in June 2015. Dr. Shaw has over 16 years of research and diagnostic product development experience and previously held roles with Baylor College of Medicine Medical Genetics Laboratories, Roche-NimbleGen, and Third Wave Technologies. Dr. Shaw received her B.S in Genetics from the University of Wisconsin-Madison and her Ph.D. in Molecular and Human Genetics from Baylor College of Medicine.
Hollis Winkler
Vice President, Human Resources
Ms. Hollis Winkler serves as Vice President – Human Resources of the Company. Ms. Winkler previously served as the founding member of Evolve | Strategic Talent Partners, a human resources consulting firm, from February 2018 to September 2018. Prior to founding Evolve, Ms. Winkler served in global human resources management from August 2013 to July 2017 for Thermo Fisher Scientific, most recently serving as Global Vice President, Human Resources, from April 2014 to July 2017. Prior to joining Thermo Fisher, Ms. Winkler served as Global Director, Human Resources for Royal Phillips Electronics, from November 2010 to August 2013 in Eindhoven, Netherlands and Hong Kong. Ms. Winker received a B.A. from Tulane University.
