Board of Directors

Eric Lefkofsky is our Founder and has served as our Chief Executive Officer and a member of our board of directors since our inception. Before founding Tempus, Mr. Lefkofsky co-founded Groupon, Inc. in 2008, where he held various roles, including Executive Chairman (through August 2013), Chief Executive Officer (August 2013 to November 2015), and Chairman of the board of directors (November 2015 to June 2020). Mr. Lefkofsky also co-founded Lightbank LLC in 2008, a private venture capital firm specializing in investments in technology companies, and has served as its managing member since inception. Mr. Lefkofsky also co-founded InnerWorkings, Inc., Mediaocean, LLC, Echo Global Logistics, Inc., and Pathos AI, Inc., and served on each company’s board of directors or board of managers. Mr. Lefkofsky holds a bachelor’s degree from the University of Michigan and a J.D. from the University of Michigan Law School.

Peter J. Barris has served as a member of our board of directors since September 2017. Mr. Barris has also served on the boards of directors of Berkshire Grey, Inc. since April 2016, Sprout Social, Inc. since February 2011 and Groupon since January 2008. Mr. Barris joined New Enterprise Associates, Inc., or NEA, a global venture capital fund investing in technology and healthcare, where he specialized in information technology investing, in 1992 and retired at the end of 2019. Prior to his retirement, Mr. Barris held several roles at NEA, including Managing General Partner from 1999 to 2017. After retiring in 2019, Mr. Barris now serves as Chairman of NEA. Mr. Barris holds a B.S. from Northwestern University and an M.B.A. from the Tuck School of Business at Dartmouth University.

Eric D. Belcher has served as a member of our board of directors since January 2019. Mr. Belcher has served as the Chief Executive Officer of Market Track, LLC (d/b/a Numerator), a data and technology company in the market research industry, since June 2019. Mr. Belcher has also held various positions at InnerWorkings, Inc. since May 2005, including most recently serving as its Chief Executive Officer and President from January 2009 to April 2018. Mr. Belcher served as a member of the board of directors of InnerWorkings, Inc. from January 2009 to December 2018, including as the Chairman of its board of directors from April 2018 to September 2018. Mr. Belcher holds a bachelor’s degree from Bucknell University and an M.B.A. from the University of Chicago Booth School of Business.

Jennifer A. Doudna, Ph.D. has served as a member of our board of directors since April 2021. Dr. Doudna has also served on the board of directors of Johnson & Johnson since April 2018. Since July 2002, Dr. Doudna has served as a Professor of Biochemistry & Molecular Biology at the University of California, Berkeley, where she directs the Innovative Genomics Institute, a joint UC Berkeley-UC San Francisco center, holds the Li Ka Shing Chancellor’s Professorship in Biomedical and Health, and is the Chair of the Chancellor’s Advisory Committee on Biology. Since 2002, Dr. Doudna has served as Principal Investigator at the Doudna Lab at UC Berkeley. Dr. Doudna has founded and served on the Scientific Advisory Boards of Caribou Biosciences, Inc. and Intellia Therapeutics, Inc., each of which are leading CRISPR genome engineering companies, since 2010. She has also been an Investigator with the Howard Hughes Medical Institute since 1997. Dr. Doudna is the recipient of numerous scientific awards in biochemistry and genetics, including the Nobel Prize in Chemistry in 2020. Dr. Doudna holds a bachelor’s degree from Pomona College and a Ph.D. from Harvard Medical School.

David R. Epstein has served as a member of our board of directors since February 2024. Mr. Epstein also serves as a board member at Valo Health, LLC. He is a Director at the non-profit Three Opinions Foundation Inc and at South Florida’s Pelican Harbor Seabird Station. Mr. Epstein previously served as the Chief Executive Officer and a member of the board of directors of Seagen Inc. from November 2022 until Seagen’s acquisition by Pfizer Inc. in December 2023. From October 2021 to December 2023, Mr. Epstein served on the board of directors of OPY Acquisition Corp. I. From June 2022 to June 2023, Mr. Epstein served as a member of the board of directors of Senti Biosciences, Inc. and was previously a member of the board of Senti’s predecessor, Dynamics Special Purpose Corp. since March 2021. From March 2017 to February 2023, he served as a director at Evelo Biosciences, Inc., including as the Chair of its board of directors from September 2019 to June 2022. From 2017 until October 2022, Mr. Epstein was a consultant and executive partner at Flagship Pioneering. From May 2019 to October 2022, Mr. Epstein served on the board of directors and as Chairman of Axcella Health Inc. (formerly Axcella Therapeutics) and, from January 2017 to October 2022, Mr. Epstein served on the board of directors of Rubius Therapeutics, Inc., he served on the board of directors of Seer, Inc. From 2010 to mid-2016, he served as the Chief Executive Officer of Novartis Pharmaceuticals, a division of Novartis AG. Previously, he started and led Novartis’ Oncology and Molecular Diagnostic units. Under his leadership, Norvartis’ oncology business grew to the second largest in the world. Early in his career, he was an associate in the strategy practice of consulting firm Booz, Allen and Hamilton. Mr. Epstein holds a B.S. in pharmacy from Rutgers University College of Pharmacy and an M.B.A. in finance and marketing from Columbia University Graduate School of Business.

Wayne A.I. Frederick, M.D. has served as a member of our board of directors since October 2020. Dr. Frederick has served on the boards of directors of several other public companies, including serving as a member of the board of directors of Insulet Corp since October 2020, Forma Therapeutics Holdings, Inc. since July 2020, and Humana Inc. since February 2020. He also serves on the boards of directors of privately held companies and charitable organizations. Dr. Frederick is the President of Howard University, having held this position since July 2014, and also serves as the Charles R. Drew Endowed Chair of Surgery at Howard University’s College of Medicine. Dr. Frederick holds a B.S./M.D. dual degree, and an M.B.A. from Howard University.

Scott Gottlieb, M.D. has served as a member of our board of directors since October 2019. Dr. Gottlieb has also served on the boards of directors of Illumina, Inc. since February 2020 and Pfizer Inc. since June 2019. Dr. Gottlieb has served as a Special Partner on NEA’s healthcare investment team since April 2019, and a Resident Fellow at American Enterprise Institute since April 2021. Prior to that, he served as the 23rd Commissioner of the U.S. Food and Drug Administration from May 2017 to April 2019. Prior to serving as Commissioner, Dr. Gottlieb held several roles in the public and private sectors, including serving as a Venture Partner at NEA from January 2007 to May 2017, and a senior advisor to the Administrator of the Centers for Medicare and Medicaid Services in 2004. He is presently a contributor to CNBC and the CBS News program Face the Nation. Dr. Gottlieb holds a B.A. from Wesleyan University and an M.D. from Mount Sinai School of Medicine.

Theodore J. Leonsis has served as a member of our board of directors since January 2019. In November 2011, Mr. Leonsis co-founded Revolution Growth, a private investment firm, and has served as a General Partner thereof since that time. Since 1999, Mr. Leonsis has served as the Founder, Chairman, Majority Owner, and Chief Executive Officer of Monumental Sports & Entertainment, LLC, a sports, entertainment, media, and technology company that owns the NBA’s Washington Wizards, the NHL’s Washington Capitals, the WNBA’s Washington Mystics, the Capital City Go-Go, Wizards District Gaming, Caps Gaming, and the Capital One Arena in Washington, D.C. Mr. Leonsis has served as a director of American Express Co. since July 2010. Mr. Leonsis has also served on the board of directors of Groupon, Inc. since June 2009, including as Chairman of the board of directors from August 2013 to November 2015 and, again, since June 2020. Mr. Leonsis also serves on the boards of directors of several private internet and technology companies, as well as charitable organizations. Mr. Leonsis holds a bachelor’s degree from Georgetown University.

Nadja West, M.D. has served as a member of our board of directors since April 2021. Dr. West has also served on the boards of directors of several other public companies, including serving as a member of the board of directors of Johnson & Johnson since December 2020, Tenet Healthcare Corp since October 2019, and Nucor Corporation since September 2019. From December 2015 to October 2019, Dr. West served as the 44th Surgeon General of the U.S. Army, and the Commanding General of the U.S. Army Medical Command. Dr. West currently serves as Trustee of both the National Recreation Foundation and Mount St. Mary’s University, and board member of Americares and The Woodruff Foundation. She was recently appointed an independent member of the NCAA Board of Governors. Dr. West holds a B.S. from the United States Military Academy at 185 West Point, an M.D. from the George Washington University School of Medicine, and an M.S. from National War College.

Director Name	Audit Committee	Compensation Committee	Nominating and Corporate Governance Committee
Peter J. Barris	Member of the Audit Committee	Chairperson of the Compensation Committee
Eric D. Belcher	Chairperson of the Audit Committee
Jennifer A. Doudna, Ph.D.			Member of the Nominating and Corporate Governance Committee
David Epstein
Wayne A.I. Frederick, M.D.	Member of the Audit Committee
Scott Gottlieb, M.D.			Member of the Nominating and Corporate Governance Committee
Theodore J. Leonsis			Chairperson of the Nominating and Corporate Governance Committee
Nadja West, M.D.		Member of the Compensation Committee

= Chairperson = Member

Board of Directors

Committee Composition

Investor Contact

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