Dick Allen 
Chairman of the Board 
Dick P. Allen has served on Tandem's board of directors since July 2007, and previously served as the Company's Chairman from August 2007 to January 2013. Mr. Allen is also engaged directly in the diabetes community through his personal involvement with JDRF and the Mary & Dick Allen Diabetes Center at Hoag Hospital. Mr. Allen is the immediate past chairman of the international board of directors of JDRF, and served as a member of the JDRF Board of Directors from July 2008 to June 2014. Mr. Allen has more than 45 years of experience in the health care industry and was previously the President of DIMA Ventures, Inc., a private investment firm providing seed capital and board-level support for start-up companies in the healthcare field. He was a co-founder and Vice President of Caremark, Inc., a home infusion therapy company that was later acquired by Baxter International. He was also a co-founder and director of Pyxis Corporation that was later acquired by Cardinal Health, Inc. Mr. Allen received a B.S. (cum laude) from Yale University and an M.B.A. from Stanford University Graduate School of Business where he served on the faculty as a Lecturer in Strategic Management for thirteen years.

Kim Blickenstaff
President and Chief Executive Officer
Kim D. Blickenstaff has served as our President and Chief Executive Officer and as one of our directors since September 2007. Prior to joining our company, Mr. Blickenstaff served as Chairman and Chief Executive Officer of Biosite Incorporated, a provider of medical diagnostic products, from 1988 until its acquisition by Inverness Medical Innovations, Inc. in June 2007. Mr. Blickenstaff currently serves as Chairman of Medivation, Inc. (NASDAQ: MDVN), and is a member of its audit committee and compensation committee. He previously served as a director of DexCom, Inc. (NASDAQ: DXCM), a provider of glucose monitoring systems, from June 2001 to September 2007. Mr. Blickenstaff was formerly a certified public accountant and has more than 20 years of experience overseeing the preparation of financial statements. He received a B.A. in Political Science from Loyola University, Chicago, and an M.B.A. from the Graduate School of Business, Loyola University, Chicago. 

Edward Cahill
Edward L. Cahill has served on our board of directors since May 2009. Mr. Cahill has served as Managing Partner of HLM Venture Partners, a venture capital firm that invests primarily in emerging companies focused on healthcare information technology, healthcare services and medical technology, since May 2000. He served as a director of Animas Corporation, a developer of external insulin pumps, from March 2001 until its acquisition by Johnson & Johnson in February 2006, during which time Animas Corporation conducted an initial public offering and became a publicly-traded company. From June 1995 to May 2000, Mr. Cahill served as a founding partner of Cahill, Warnock Company (now Camden Partners), a Baltimore venture capital firm. Previously, Mr. Cahill was a Managing Director of Alex.Brown & Sons, an investment services brokerage, where he headed the firm's healthcare group from January 1986 through March 1995. Mr. Cahill also serves as a director of Masimo Corporation (NASDAQ: MASI), a medical technology company. He is also a director of several private healthcare companies and serves as a trustee of Johns Hopkins Medicine, Johns Hopkins Health System and Mercy Health Services. Mr. Cahill holds an A.B. in American Civilization from Williams College and a Masters of Public and Private Management from Yale University.

Howard (Ted) Greene, Jr.
Howard E. Greene, Jr. has served on our board of directors since January 2008. Mr. Greene is an entrepreneur who has participated in the founding and management of 11 medical technology companies over 25 years, including three companies for which he served as chief executive officer. He was the co-founder of Amylin Pharmaceuticals, Inc., a public pharmaceutical company that was acquired by Bristol Myers Squibb in August 2012, serving as the Chief Executive Officer of that company from 1987 to 1996. He also served as a director of Amylin Pharmaceuticals from 1987 to April 2009. Mr. Greene also served on the board of directors of Biosite from June 1989 until its acquisition by Inverness Medical Innovations, Inc. in 2007. From 1986 until 1993, Mr. Greene was a founding general partner of Biovest Partners, a seed venture capital firm. He was Chief Executive Officer of Hybritech Incorporated from March 1979 until its acquisition by Eli Lilly & Co. in March 1986, and he was co-inventor of Hybritech’s patented monoclonal antibody assay technology. Prior to joining Hybritech, he was an executive with the medical diagnostics division of Baxter Healthcare Corporation and a consultant with McKinsey & Company. Mr. Greene holds a B.A. in Physics from Amherst College and an M.B.A. from Harvard Business School.

Douglas Roeder
Douglas A. Roeder has served on our board of directors since May 2009. Mr. Roeder joined Delphi Ventures as an Associate in 1998, and has been a Partner since 2000, focusing on medical devices, diagnostics and biotechnology. Prior to joining Delphi Ventures, Mr. Roeder was an Associate with Alex.Brown’s Healthcare Investment Banking Group in San Francisco, where he focused on the medical device, life sciences and healthcare services industries. He also previously worked with Putnam Associates, a strategy consulting firm focused on the pharmaceutical and biotechnology industries. Mr. Roeder holds an A.B. in Biochemistry from Dartmouth College.

Christopher Twomey
Christopher J. Twomey has served on our board of directors since July 2013. From March 1990 until his retirement in 2007, Mr. Twomey held various positions with Biosite, most recently serving as Senior Vice President, Finance and Chief Financial Officer. From 1981 to 1990, Mr. Twomey worked for Ernst & Young LLP, where he served as an Audit Manager. Mr. Twomey served as a director and audit committee chair of Cadence Pharmaceuticals, Inc., a biopharmaceutical company, from July 2006 until its acquisition by Mallinckrodt in 2014. Mr. Twomey has also served as a member of the board of directors of Senomyx since March 2006 and is chair of that company's audit committee. Mr. Twomey holds a B.A. in Business Economics from the University of California at Santa Barbara.

Kim Blickenstaff
President and Chief Executive Officer
Kim D. Blickenstaff has served as our President and Chief Executive Officer and as one of our directors since September 2007. Prior to joining our company, Mr. Blickenstaff served as Chairman and Chief Executive Officer of Biosite Incorporated, a provider of medical diagnostic products, from 1988 until its acquisition by Inverness Medical Innovations, Inc. in June 2007. Mr. Blickenstaff currently serves as Chairman of Medivation, Inc. (NASDAQ: MDVN), and is a member of its audit committee and compensation committee. He previously served as a director of DexCom, Inc. (NASDAQ: DXCM), a provider of glucose monitoring systems, from June 2001 to September 2007. Mr. Blickenstaff was formerly a certified public accountant and has more than 20 years of experience overseeing the preparation of financial statements. He received a B.A. in Political Science from Loyola University, Chicago, and an M.B.A. from the Graduate School of Business, Loyola University, Chicago. 

David Berger
Executive Vice President and General Counsel
David Berger joined Tandem in August 2013. Prior to joining the company, he served as Senior Vice President, General Counsel and Corporate Secretary at Senomyx, Inc., which he joined in 2008. His prior experience includes serving as Vice President, Legal Affairs at Biosite Incorporated, where he was the managing attorney responsible for all commercial aspects of legal affairs, and serving as an attorney with Cooley Godward LLP. Mr. Berger received his J.D. at Stanford Law School and a B.A. in Economics from the University of California, Berkeley.

Tom Fox
Vice President, Human Resources
Tom Fox was appointed Vice President, Human Resources in August 2017. He previously served as Senior Director of our Human Resources Department. Mr. Fox has more than 20 years of experience in Human Resources management.  Prior to joining Tandem, Mr. Fox served as Director of Human Resources for the Oncology-Genoptix Division of Novartis Pharmaceuticals.  Before that, he held various HR leadership positions including Director of Human Resources for the West Division of BDO, USA LLP; Director of HR Client Services for Option One Mortgage Company (a subsidiary of H&R Block Corp.) and Director of Labor and Employee Relations at The Walt Disney Company, Disneyland Resort. Mr. Fox began his career at Chevron Corporation and holds a B.S. in Business Administration from California State University, Fresno and a M.S. in Labor Relations and Human Resources Management from Michigan State University.

Brian Hansen
Executive Vice President and Chief Commercial Officer
Brian Hansen joined us as our Executive Vice President & Chief Commercial Officer in February 2016 with more than 20 years of sales and leadership experience in the clinical diagnostics industry. Prior to joining Tandem, Mr. Hansen was Chief Commercial Officer at Adaptive Biotechnologies Corporation. Before that, he held executive and senior-level positions at Genoptix (a Novartis-owned company), Gen-Probe (acquired by Hologic in 2012) and Fischer Scientific. Mr. Hansen received an MBA from the School of Business at San Diego State University and a B.S. in Business Administration from the University of Missouri – Columbia. 

Julia Kensick
Vice President, Quality
Julia Kensick was appointed Vice President, Quality in August 2017. She previously served as Senior Director of Quality and has overseen the department since September of 2013. Ms. Kensick has more than 25 years of experience in quality, regulatory and customer affairs.  Prior to joining Tandem, Ms. Kensick served as Director of Quality for the Infusion Business Unit of CareFusion. Before that, she held positions including Executive Director of Regulatory and Customer Affairs for Ophthonix and Quality Assurance Director at American Medical Systems (Formerly CryoGen Inc.). Ms. Kensick began her career in the Vascular Intervention Group at Guidant and holds a Bachelor of Science in Mechanical Engineering from San Diego State University.