DGX 10-Q Quarter ended March 31, 2011

Mr. Lassiter has extensive executive experience in the U.S. healthcare system, including in governance, strategic planning, market expansion, mergers and acquisitions, performance improvement and corporate turnaround.

Ms. Gregg is a cofounder/partner of Guidon Partners LLC. She retired as Chief Executive Officer of Blue Cross Blue Shield of Tennessee in 2012. Prior to becoming Chief Executive Officer in 2003, Ms. Gregg served in a number of other leadership roles, including President and Chief Operating Officer. Before that, she held a series of senior roles at Humana Health Plans. Ms. Gregg served as a member of the U.S. National Institutes of Health Commission on Systemic Interoperability. She currently serves on the boards of Acadia Healthcare Company, Inc., Erlanger Health System and the Electric Power Board of Chattanooga, as well as the boards of several private companies, including MyEyeDr. Previously, Ms. Gregg served on several boards, including TeamHealth Holdings, Inc., then a public company, from 2013 to 2017 and First Horizon Corporation from 2011 to 2015. She has also served as Chair of America’s Health Insurance Plans, as a member of the BlueCross BlueShield Association, as Chair of the Board of the National Institute for Healthcare Management, and as a member of the Healthcare Leadership Council. Qualifications, Skills and Expertise Ms. Gregg has extensive executive and advisory experience, including in general management and strategic planning, with a range of health care organizations, and extensive experience with healthcare issues and the operation of the U.S. healthcare system, including as a practicing nurse.

Ms. Doi retired as Chief Financial Officer and Group Vice President of Toyota Motor North America, Inc. in 2022, after serving nearly twenty years as Chief Financial Officer. Ms. Doi joined Toyota in 2000 as Vice President, Corporate Controller and her responsibilities continued to expand upon her elevation to Chief Financial Officer in 2003. She currently serves on the board of Pentair plc and as an independent trustee of SunAmerica Series Trust and Season Series Trust. Ms. Doi served on the board of City National Bank, a Royal Bank of Canada Company, from 2016 to 2021, and on the Federal Reserve Bank of San Francisco Economic Advisory Council from 2009 to 2016. Qualifications, Skills and Expertise Ms. Doi has extensive executive experience, including in corporate finance, general management, strategic planning, operations, risk, enterprise systems, consumer focus, business analytics and transformation, with a multinational corporation operating in a complex industry. Ms. Doi also has experience with cybersecurity and technology matters.

Mr. Ring is our Lead Independent Director. He retired in 2017 as Chairman and Chief Executive Officer of C. R. Bard, Inc., positions in which he had served since 2003. Mr. Ring is a director of Becton, Dickinson and Company, and was director of C. R. Bard, Inc. from 2003 to 2017 and of CIT Group Inc. from 2005 to 2009. He is a co-founder of TeamFund, Inc., an impact fund and non-profit focused on delivering medical technology to Sub-Saharan Africa and India. Qualifications, Skills and Expertise Mr. Ring has extensive executive experience, including in corporate governance, strategic planning and international operations, with a multinational corporation operating in the healthcare industry. Mr. Ring also has experience with cybersecurity and technology matters.

Mr. Main has been the Non-Executive Chairman of WNS (Holdings) Limited since September 2021. From 2000 until 2013 he was the Chief Executive Officer, and from 2013 until 2021 the non-executive Chairman of the Board, of Jabil, Inc., an electronic product solutions company providing comprehensive electronics design, manufacturing and management services to global electronics and technology companies. As Chief Executive Officer, Mr. Main led Jabil’s growth strategy, increasing annual revenues nearly five-fold to reach $17 billion in 2012, and expanding in Asia and other emerging markets. Qualifications, Skills and Expertise Mr. Main has extensive executive experience, including in capital markets, technology, operations, corporate governance, strategic planning and general management in a complex global industry. Mr. Main also has experience with cybersecurity and technology matters.

Mr. Carter retired as Executive Vice President and Chief Information Officer at FedEx Corporation in 2024, where he worked for over 30 years and was responsible for setting the technology direction of the FedEx applications, infrastructure and networks that provide support for FedEx product offerings. Mr. Carter serves on the board of directors of New York Life and previously served on the boards of First Horizon Corporation, Pilot Corporation and Saks, Inc. He also serves on the Board of Trustees for the University of Memphis. Mr. Carter earned a bachelor’s degree in computer and information science from the University of Florida, and a master’s degree from the University of South Florida. Qualifications, Skills and Expertise Mr. Carter has extensive expertise in cybersecurity and information technology, including AI. He also has extensive executive experience in operations, as well as strong public and private company board experience.

Dr. Diaz has been the head of the division of solid tumor oncology at the Memorial Sloan Kettering Cancer Center since December 2016. Previously, he was a faculty member and physician at the Johns Hopkins University School of Medicine. He has founded several biotechnology companies, including Epitope, Inostics, PapGene (Thrive) and Personal Genome Diagnostics, Inc. Dr. Diaz’s early work provided the first definitive evidence for using circulating tumor DNA as cancer biomarker for screening, monitoring, and detection of occult disease. He discovered the therapeutic link between immunotherapy and cancer genetics in patients with mismatch repair deficient tumors, which led to the first tumor agnostic FDA approval for tumors with this genetic lesion and the first cancer study, published in 2022, that resulted in a 100% complete remission rate. Dr. Diaz served on the board of Jounce Therapeutics, Inc. from 2017 until it was acquired in 2023. He is the recipient of numerous awards and honors. Dr. Diaz was elected to the National Academy of Medicine in 2023 and in 2021 he was appointed by President Biden to the National Cancer Advisory Board of the National Institutes of Health. Qualifications, Skills and Expertise Dr. Diaz has extensive experience in healthcare, medical and science and strong management and strategic planning experience with enterprises engaged in healthcare, medical and science.

Mr. Davis became Chairman of the Board on April 1, 2023 and Chief Executive Officer and President of the Company on November 1, 2022, having served as CEO-Elect since February 3, 2022. Mr. Davis joined Quest Diagnostics in April 2013 as Senior Vice President, Diagnostics Solutions. He initially managed a portfolio of businesses and was instrumental in refocusing the Company on diagnostic information services. Mr. Davis was given positions of increasing responsibility and was named Executive Vice President, General Diagnostics in January 2017. Prior to joining Quest Diagnostics, Mr. Davis served as Lead Director, and then as Chief Executive Officer, of InSightec, Inc., a medical device company that designs and develops ultrasound ablation devices that are guided by magnetic resonance imaging systems. Previously, he held a number of senior positions in General Electric’s healthcare business, held leadership positions in General Electric’s aviation business and led the development of strategic and operational improvement initiatives for clients of McKinsey & Company, Inc. Qualifications, Skills and Expertise Mr. Davis has extensive executive experience, including in operations, general management, science, strategic planning and international operations, with large, complex corporations operating in the healthcare industry.

Mr. Pfeiffer retired in 2006 as the Senior Vice President and Chief Financial Officer of E.I. du Pont de Nemours and Company. He joined DuPont in 1974, where he held positions of increasing responsibility in finance and international operations, as well as in various DuPont divisions. Mr. Pfeiffer served as Secretary of Finance for the state of Delaware from January through June 2009. Mr. Pfeiffer served as a director of Internap Corporation from 2007 to 2020, TerraVia Holdings, Inc. from 2014 to 2017 and Talbots, Inc. from 2005 to 2012. He served as the non-executive Chair of the Board of Directors of Christiana Care Health System, a regional hospital system located in Delaware, from 2012 to 2016. Qualifications, Skills and Expertise Mr. Pfeiffer has extensive executive experience, including in capital markets, corporate finance, accounting, international operations, general management, and strategic planning, with a multinational corporation operating in complex industries. Mr. Pfeiffer also has experience with cybersecurity and technology matters.

Ms. Morrison is the founder of Denise Morrison & Associates, LLC, a consulting firm. She retired in 2018 as the President and Chief Executive Officer of Campbell Soup Company. Ms. Morrison joined Campbell in 2003, where she held positions of increasing responsibility. Prior to joining Campbell, she held executive management positions at Kraft Foods, Inc. from 2001 to 2003. Ms. Morrison is a director of MetLife, Inc. and Visa, Inc. and served as a director of Campbell Soup Company from 2010 to 2018 and a director of The Goodyear Tire & Rubber Company from 2005 to 2010. She is a member of the Board of Trustees for Boston College, Enterprise Executive Sponsorship Council for Bank of America and the Advisory Council for Just Capital. Ms. Morrison previously served on the Advisory Board for Tufts Friedman School of Nutrition Science and Policy; the New Jersey Restart and Recovery Commission; President Trump’s Manufacturing Jobs Initiative; and President Obama’s Export Council. Qualifications, Skills and Expertise Ms. Morrison has extensive executive experience, including in consumer focus, corporate governance, general management and strategic planning, operations and marketing, with multinational corporations operating in consumer-focused, regulated industries. Ms. Morrison also has experience with cybersecurity and technology matters.