Ms. McKenzie joined our board in 2020. Ms. McKenzie was the Chief Information Officer of Workday, Inc., a cloud-based financial and human capital management software company, from February 2016 until April 2019. From 2004 through February 2016, she held roles of increasing responsibility at Amgen Inc., a biotechnology company, most recently serving as Senior Vice President and Chief Information Officer. Ms. McKenzie served for 17 years at Eli Lilly and Company, a pharmaceutical company, in various leadership roles, focused on drug development, reducing time to market and improving technology and security standards. She currently serves as a member on the board of directors of agilon health, inc., MetLife, Inc., and Paradox AI, and as a Special Advisor to Brighton Park Capital. Ms. McKenzie also served as a member on the board of directors of Change Healthcare, Inc., a publicly traded healthcare technology company from August 2019 until it was acquired by United Health Group in October 2022. Ms. McKenzie holds a Bachelor of Science degree in computer information systems from Purdue University and completed the Information Technology Management Program at University of California, Los Angeles, and the CERT Certification for Cybersecurity Oversight from Carnegie Mellon’s Software Engineering Institute.

Mr. Sachs joined our board in 1998 and is the board's lead independent director. Mr. Sachs is a General Partner at Charles River Ventures, a venture capital firm he joined in 1999. From 1998 to 1999, he served as Executive Vice President and General Manager of Ascend Communications, Inc. From 1997 until 1998, Mr. Sachs served as President and Chief Executive Officer of Stratus Computer, Inc. From 1995 to 1997, he served as Executive Vice President and General Manager of the Internet Telecom Business Group at Bay Networks, Inc. From 1993 to 1995, he served as President and Chief Executive Officer of Xylogics, Inc. Mr. Sachs holds a B.S.E.E. in electrical engineering from Bucknell University, an M.E.E. in electrical engineering from Cornell University and an M.B.A. from Northeastern University.

Dr. Garber joined our board in 2017. He is currently the Provost of Harvard University, the Mallinckrodt Professor of Health Care Policy at Harvard Medical School, a Professor of Economics in the Faculty of Arts and Sciences, Professor of Public Policy in the Harvard Kennedy School of Government, and a Professor in the Department of Health Policy and Management in the Harvard T.H. Chan School of Public Health. From 1998 until he joined Harvard in 2011, he was the Henry J. Kaiser Jr. Professor, a Professor of Medicine, and a Professor (by courtesy) of Economics, Health Research and Policy, and of Economics in the Graduate School of Business at Stanford University. Dr. Garber is a member of the National Academy of Medicine, the American Society of Clinical Investigation, the Association of American Physicians and the American Academy for Arts and Sciences. He is a Fellow of the American Association for the Advancement of Science, the American College of Physicians and the Royal College of Physicians. Dr. Garber is also a Research Associate with the National Bureau of Economic Research and served as founding Director of its Health Care Program for 19 years. He also has served as a member of the National Advisory Council on Aging at the National Institutes of Health, as a member of the Board of Health Advisers of the Congressional Budget Office and as Chair of the Medicare Evidence Development and Coverage Advisory Committee at the Centers for Medicare and Medicaid Services. Dr. Garber has been a member of the board of directors of Exelixis, Inc., a biopharmaceutical company, since 2005. Dr. Garber holds an A.B. summa cum laude, an A.M. and a Ph.D., all in economics, from Harvard University, and an M.D. with research honors from Stanford University.

Mr. Carney joined our board in 2019. Mr. Carney was the Chief Acquisition Officer of Carney Technology Acquisition Corp. II, a special purpose acquisition corporation, from October 2020 until February 2023. Mr. Carney was the Chief Executive Officer of ChaSerg Technology Acquisition Corp., a technology acquisition company, from September 2018 until March 2020. He was the Chief Executive Officer of Brocade Communications Systems Inc., a global supplier of networking hardware and software, from January 2013 until November 2017, when it was acquired by Broadcom. Prior to Brocade, Mr. Carney served as Chief Executive Officer of Xsigo Systems, a cloud-based infrastructure solutions provider, until its acquisition by Oracle in 2012. He has also served as the Chief Executive Officer and Chairman of Micromuse Inc., a software solutions provider for business and service assurance, until its acquisition by IBM. Earlier in his career he had held senior leadership roles at Juniper Networks, Inc., Nortel Networks Inc. and Bay Networks, Inc. Mr. Carney serves as a member on the board of directors of Visa Inc. and Grid Dynamics Holdings, Inc. Mr. Carney was a member of the Board of Directors of Nuance Communications Inc., a publicly traded AI-enabled communication company, until it was acquired by Microsoft Corp in March 2022. He holds a Bachelor of Science degree in electrical engineering technology from Wentworth Institute of Technology, a Master of Science degree in applied business management from Lesley College, and an Honorary Doctorate degree in engineering from Wentworth Institute of Technology.