Neil Kumar, Ph.D., is a co-founder and has served as our Chief Executive Officer and a member of our board of directors since April 2015. Dr. Kumar has also served as the Chief Executive Officer of our subsidiary, Eidos Therapeutics, Inc. (Nasdaq: EIDX), a clinical stage biopharmaceutical company, and a member of Eidos Therapeutics’ board of directors since March 2016. Prior to that, he served as the interim vice president of business development at MyoKardia, Inc. (Nasdaq: MYOK), a clinical stage biopharmaceutical company, from 2012 to 2014. Prior to that, Dr. Kumar served as a principal at Third Rock Ventures, a venture capital firm, from 2011 to 2014. Before joining Third Rock Ventures, he served as an associate principal at McKinsey & Company, a worldwide management consulting firm, from 2007 to 2011. He received his B.S. and M.S. degrees in chemical engineering from Stanford University and received his Ph.D. in chemical engineering from the Massachusetts Institute of Technology.

We believe that Dr. Kumar is qualified to serve as a member of our board of directors based on his perspective and experience he brings as our founder and Chief Executive Officer and his extensive experience in the health care industry.

Charles Homcy, M.D. has served as a member of our board of directors since November 2018 and as our Chairman of Pharmaceuticals since February 2019. In 2010, Dr. Homcy joined Third Rock Ventures, a venture capital firm, where he is currently a partner. In 2003, he co-founded Portola Pharmaceuticals (Nasdaq: PTLA), a clinical biotechnology company, and he served as their president and chief executive officer until 2010. Prior to that, Dr. Homcy served as the president of research and development at Millennium Pharmaceuticals, Inc. (currently, Takeda Oncology), a biopharmaceutical company, following its acquisition of COR Therapeutics, Inc. in 2002. He joined COR Therapeutics, Inc., a biopharmaceutical company, in 1995 as executive vice president of research and development, and he served as a director of the company from 1988 to 2002. Dr. Homcy was a clinical professor of medicine at the University of California, San Francisco Medical School, and attending physician at the San Francisco Veterans Affairs Hospital from 1997 to 2011. He was previously president of the medical research division of American Cyanamid-Lederle Laboratories, a division of Wyeth-Ayest Laboratories. He currently serves on the board of directors of Portola Pharmaceuticals, Inc., a position he has held since 2004, and of Global Blood Therapeutics, Inc., a position he has held since 2012. Dr. Homcy holds a B.A. and an M.D. from Johns Hopkins University and currently serves on its board of trustees.

We believe that Dr. Homcy is qualified to serve as a member of our board of directors based on his significant experience building and leading successful biotechnology companies and his scientific expertise.

Richard H. Scheller, Ph.D. has served as a member of our board of directors since January 2018 and as our Chairman of Research & Development effective as of January 2019. Dr. Scheller has been Chief Science Officer and Head of Therapeutics at 23andMe, a personal genetics company, since 2015. Previously, Dr. Scheller was the Executive Vice President of Research and Early Development and a member of the Executive Committee at Genentech, Inc., a biotechnology corporation, from February 2001 to December 2014. From January 2009 to December 2014, Dr. Scheller was also a member of the Enlarged Executive Committee at Hoffmann-La Roche Ltd, a pharmaceutical company. Dr. Scheller currently serves as a member of the board of directors of Xenon Pharmaceuticals Inc., a clinical stage biopharmaceutical company, ORIC Pharmaceuticals, Inc., a biopharmaceutical company, Affinita Biotech, Inc., a preclinical stage biotech company and Alector, Inc., a clinical-stage biopharmaceutical company. Dr. Scheller holds a B.Sc. in Biochemistry from the University of Wisconsin-Madison and a Ph.D. in Chemistry from the California Institute of Technology. He completed his post-doctorate in Molecular Neurobiology at Columbia University and was also a post-doctorate fellow at California Institute of Technology.

We believe that Dr. Scheller is qualified to serve as a member of our board of directors based on his scientific background and his senior management experience in the pharmaceutical industry.

Eric Aguiar, M.D. has served as a member of our board of directors since March 2019. Dr. Aguiar has been a partner at Aisling Capital since January 2016 and prior to that was a partner at Thomas, McNerney and Partners, a healthcare venture capital and growth equity fund, since 2007. Prior to joining that firm, he was a Managing Director of HealthCare Ventures, a healthcare focused venture capital firm, from 2001 to 2007. Dr. Aguiar currently serves on the board of directors of Invitae Corporation (NYSE: NVTA) since September 2010, Biohaven Corporation (NYSE: BHVN) since October 2016 and Eidos Therapeutics (Nasdaq: EIDX) since March 2018. Dr. Aguiar is a member of the Board of Overseers of the Tufts School of Medicine and a member of the Council on Foreign Relations. Dr. Aguiar received his medical degree with honors from Harvard Medical School. He graduated with honors from Cornell University as a College Scholar. He was also a Luce Fellow and is a Chartered Financial Analyst.

We believe that Dr. Aguiar is qualified to serve as a member of our board of directors based on his medical and finance background and experience as an investor in life science companies.

James C. Momtazee has served as a member of our board of directors since March 2016. He is a member of KKR Management LLC, an affiliate of KKR & Co. Inc., and he has been employed by Kohlberg Kravis Roberts & Co. L.P., a private equity investment firm, since 1996. Mr. Momtazee currently serves on the board of directors of PRA Health Sciences, Inc. (Nasdaq: PRAH), a global contract research organization as well as several private companies. He previously served on the boards of directors of Jazz Pharmaceuticals plc (Nasdaq: JAZZ), a biopharmaceutical company, from 2004 to 2014, HCA Healthcare Inc. (formerly HCA Holdings Inc.; NYSE: HCA), a health care services company, from 2006 to 2014, and Entellus Medical, Inc., a medical technology company, from 2017 to 2018. He received an A.B. from Stanford University and an M.B.A. from the Stanford Graduate School of Business.

We believe that Mr. Momtazee is qualified to serve as a member of our board of directors based on his significant expertise in financing and financial matters, including expertise and experience in structuring complex financial transactions and a broad understanding of the market related to those transactions.

Ali J. Satvat has served as a member of our board of directors since March 2016. Mr. Satvat has also served on the board of our subsidiary, Eidos Therapeutics, Inc., a clinical stage biopharmaceutical company, since June 2018. Mr. Satvat joined Kohlberg Kravis Roberts & Co. L.P., a private equity investment firm in January 2012 and is a member of KKR on the Health Care industry team within KKR’s Americas Private Equity platform. Mr. Satvat leads KKR’s Health Care Strategic Growth investing efforts and sits on the Health Care Strategic Growth Investment Committee and the Health Care Strategic Growth Portfolio Management Committee. Mr. Satvat has served as a member of the board of directors of Coherus BioSciences, Inc. (Nasdaq: CHRS), a biotechnology company, since May 2014, as well as multiple privately held organizations. Mr. Satvat served as a member of the board of directors of PRA Health Sciences, Inc. (Nasdaq: PRAH), a global contract research organization, from September 2013 through April 2018. Prior to joining KKR, Mr. Satvat was a principal with Apax Partners LLP, a British private equity firm, where he invested in health care from 2006 to 2012. Previously, Mr. Satvat held various positions with Johnson & Johnson Development Corporation, a venture capital subsidiary of Johnson & Johnson, Audax Group, a private equity company, and The Blackstone Group, a multinational private equity, alternative asset management and financial services firm. Mr. Satvat holds an A.B. in History and Science from Harvard College and an M.B.A. in Health Care Management and Entrepreneurial Management from the Wharton School of the University of Pennsylvania. Mr. Satvat currently serves on the board of directors of the Healthcare Private Equity Association.

We believe that Mr. Satvat is qualified to serve as a member of our board of directors based on his expertise in financing and financial matters, as well as his extensive investment experience in the health care industry.