格瑞尔 GRAL

Robert Ragusa has served as our Chief Executive Officer since October 2021 and as a member of our Board since June 2024. Mr. Ragusa was previously Chief Operations Officer for Illumina from December 2013 until October 2021, where he was responsible for the company's operations serving clinical and research customers. Prior to joining Illumina, Mr. Ragusa was Executive Vice President of Engineering and Global Operations at Accuray Incorporated from April 2010 until December 2013, a radiation oncology company, where he and his team were responsible for the development, manufacturing and distribution of innovative precision treatment solutions. Mr. Ragusa also previously served as Senior Vice President of Global Operations for Applied Biosystems from 1997 until 2005. Mr. Ragusa currently serves on the Board of Directors for Twist Bioscience Corporation, a publicly-held synthetic biology company, since December 2016. Mr. Ragusa holds a B.S. in electrical engineering and an M.B.A. from the University of Connecticut as well as an M.S. in biomedical and electrical engineering from Carnegie Mellon University.

Joshua Ofman, M.D., MSHS, has served as our President since June 2021 and previously served as our Chief Medical Officer from November 2021 until June 2022, as our Chief Medical Officer and Head of External Affairs from June 2020 until August 2021, and as Chief of Corporate Strategy and External Affairs from June 2019 until January 2020. On March 10, 2026, Dr. Ofman was also appointed to serve as our Chief Executive Officer, effective June 1, 2026. Dr. Ofman has previously served on the Board of Directors of two privately-held biotechnology companies. Previously, Dr. Ofman spent more than 15 years at Amgen, where he most recently held the role of Senior Vice President, Global Value, Access and Policy. Prior to that, Dr. Ofman was a faculty member in the Department of Medicine and Health Services Research at University of California, Los Angeles (UCLA) School of Medicine, Division of Digestive Diseases at Cedars-Sinai Medical Center, as well as Senior Vice President of Zynx Health Inc. Dr. Ofman holds a B.A. in history and philosophy of science from the University of California, Berkeley, an M.D. from the University of California, Irvine, School of Medicine, and an MSHS from the UCLA School of Public Health.

Aaron Freidin has served as our Chief Financial Officer since November 2021 and previously served in various roles at GRAIL since 2016, including Senior Vice President of Finance from January 2021 until November 2021, Vice President of Finance from June 2018 until January 2021, and Corporate Controller from August 2016 until June 2018. Mr. Freidin previously served as VP, Corporate Controller at Counsyl, where he led the Accounting, Reporting, Facilities and Procurement functions. Before this, Mr. Freidin led the SEC Reporting and Revenue functions at Cepheid, and managed multinational and cross-functional client service teams at PricewaterhouseCoopers LLP. Mr. Freidin has over 24 years of finance and accounting experience. Mr. Freidin is a Certified Public Accountant (Inactive) and holds a B.A. in business management from the University of California, Santa Cruz.

Gregory Summe has served as Chair of our Board since June 2024. Mr. Summe is the Founder of investment fund Glen Capital Partners LLC and has served as the Managing Partner since June 2014. Mr. Summe previously served as Managing Director and Vice Chairman of Global Buyout at The Carlyle Group from October 2009 until June 2014. Prior to The Carlyle Group, Mr. Summe served for over a decade as Chairman, CEO, and President of PerkinElmer, Inc., a leading diagnostics and life sciences company. He also served as a Senior Advisor at Goldman Sachs Capital Partners and was the President of AlliedSignal, Inc.'s Automotive, Jet Engine, and General Avionics businesses. Previously, he was the General Manager of General Electric Commercial Motors and a Partner at McKinsey and Company. He currently serves on the boards of NXP Semiconductors N.V., a publicly-traded semiconductor company, since December 2015, Avantor, Inc., a publicly-traded Life Sciences company, since May 2020, Wheels Up Experience, Inc., a publicly traded aviation company since September 2024 and is a Senior Advisor at Star Mountain Capital, LLC. Mr. Summe previously served on the board of the State Street Corporation, a publicly-traded financial services company from 2001 until 2025, Virgin Orbit Holdings, Inc., a publicly-traded space launch services company, from January 2022 until August 2023, and on the boards of NextGen Acquisition Corp I & II from July 2020 until December 2021. Mr. Summe holds a B.S. from the University of Kentucky, an M.S. from the University of Cincinnati, and an M.B.A. from the Wharton School of the University of Pennsylvania.

William Chase has served as a member of our Board since June 2024. Mr. Chase most recently served for 7 years in roles as Executive Vice President, Finance and Administration and Executive Vice President and Chief Financial Officer at AbbVie Inc. (AbbVie) from October 2018 until July 2019, where he oversaw all financial, investor, and IT activities and played a critical role in the development of the company's strategy and licensing and acquisition actions. Prior to AbbVie, Mr. Chase served nearly 25 years in positions of increasing responsibility at Abbott Laboratories, including roles as Corporate Vice President, Licensing & Acquisitions, Corporate Vice President and Treasurer, and Controller, Abbott International. He currently serves as a director and as chair of the audit committee on the boards of each of Intellia Therapeutics, Inc., a publicly-traded biotechnology company, since April 2023, and Parexel International, a privately-held biopharmaceutical services company, since November 2021. Mr. Chase holds a B.S. from the University of Illinois and an M.B.A. from the University of Chicago Booth School of Business.

Steven Mizell has served as a member of our Board since June 2024. Mr. Mizell is the former Executive Vice President and Chief Human Resources Officer at Merck & Co., Inc., where he was employed from October 2018 until his retirement on July 1, 2024. He was responsible for talent acquisition and development, employee health and wellness, total rewards, and human capital management for over 68,000 employees across the world. Mr. Mizell previously served as Executive Vice President & Chief Human Resources Officer at Monsanto Company from 2004 until 2018, where he created an industry-leading workplace for more than 20,000 employees globally. Before that, Mr. Mizell served as Senior Vice President and Chief Corporate Resources Officer for AdvancePCS Inc. and previous to that held several key human resources management roles at companies across the energy, defense, manufacturing, communications and technology sectors. He currently serves on the boards of Allegion Plc., a publicly-traded security products company, since February 2020, and Group 1 Automotive, Inc., a publicly-traded automotive retailer since March 2021, and has earned a Directorship Certification from the National Association of Corporate Directors. Mr. Mizell holds a B.S. from Georgia Institute of Technology and an M.S. from Carnegie Mellon University.

Sarah Krevans has served as a member of our Board since October 21, 2024. Ms. Krevans is the former President and CEO of Sutter Health, a Northern California based not-for-profit, where she served as CEO from 2016 until 2022. She was responsible for Sutter Health's integrated network of 14,000 clinicians, 24 hospitals, outpatient services, research facilities, and home health and hospice care. Previously, Ms. Krevans served as chief operating officer and president of the Sutter Health Sacramento Sierra Region. She also held executive roles at Kaiser Permanente and served as deputy director of Maine's Bureau of Medical Services and acting director of Medicaid, health planning and licensure programs. Ms. Krevans has served as a Board Member for The Acacium Group since 2021 and is the Chair for CaringBridge, where she has served as a director since 2022. She has also served on Boards of many not-for-profit organizations and served as Chair of the California Hospital Association in 2022 and as a director from 2016 until 2022. Ms. Krevans earned master's degrees in business administration and in public health from the University of California, Berkeley, and a bachelor's degree from Boston University.