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Mr. Schwartz has been our Chief Executive Officer since 2003 and our Chairman of the Board since 2012. He was our President from 2003 to 2024, our Vice President from 1989 to 2002, our Group Manager, Life Science, from 1997 to 2002 and our Group Manager, Clinical Diagnostics, from 1993 to 1997.

Jonathan P. DiVincenzo was appointed President and Chief Operating Officer in September 2024. Mr. DiVincenzo has more than 30 years of industry experience across strategic, operational, and commercial organizations in both life science and diagnostics. Prior to joining Bio-Rad, Mr. DiVincenzo was Executive Vice President and President, Central Laboratories & International at Labcorp Holdings Inc., a global provider of comprehensive laboratory services, from May 2023 to August 2024. Prior to that, at Labcorp, he was President, Clinical Trials Testing Solutions from October 2019 to May 2023, and Senior Vice President, GM, Covance, from August 2017 to October 2019. Prior to Labcorp, from 2013 to 2016, Mr. DiVincenzo was President of the Environmental Health Division at PerkinElmer, a global company focused on diagnostics, life science research, food quality, environmental health, and industrial testing. Mr. DiVincenzo's other previous global leadership roles have included CEO of Enzymatics, a privately held molecular biology reagents company, and senior positions with EMD Millipore, a subsidiary of Merck KGaA. Mr. DiVincenzo holds a Bachelor of Science degree in mechanical engineering from Northeastern University.

Roop K. Lakkaraju was appointed Executive Vice President, Chief Financial Officer in April 2024. Prior to joining Bio-Rad, Mr. Lakkaraju was Executive Vice President and Chief Financial Officer at Benchmark Electronics, a multi-national electronics manufacturing services company, from January 2018 to March 2024. Prior to that, he was Chief Financial Officer at Maana, Inc., an enterprise software company, from 2017 to 2018, and Chief Operating Officer and Chief Financial Officer at Support.com, a provider of cloud-based software and services, from 2013 to 2017. Prior to those roles, he held senior executive financial and operational roles at Quantros, Inc., 2Wire Inc. Solectron Corporation, and Safeguard Scientifics. Mr. Lakkaraju began his career as an auditor with Grant Thornton and PricewaterhouseCoopers, and holds a B.S. in Business Administration, Accounting, from San Jose State University. He also served on the board of directors and as audit committee chair at Infinera Corporation, a publicly traded global supplier of open optical networking solutions, until Infinera was acquired by Nokia Corporation as of February 28, 2025.

Rajat Mehta was appointed Executive Vice President, Global Commercial Operations in August 2025. Prior to joining Bio-Rad, Mr. Mehta was Senior Vice President at Labcorp Holdings Inc., a global provider of comprehensive laboratory services, from September 2019 to July 2025, where he oversaw global commercial operations for Labcorp's West Division. Prior to that, he was Vice President & General Manager of the Applied Technologies Business Unit at Thermo Fisher Scientific, a global life science and clinical research company, from 2016 to 2019. Prior to that, Mr. Mehta held senior global commercial roles of increasing responsibility at the Dow Chemical Company from 2007 to 2016, and he held sales roles with startup companies from 2000 to 2006. He holds an MBA from The Wharton School, University of Pennsylvania and a Bachelor of Science degree in Electrical Engineering from Kurukshetra University in India.

James Barry was appointed Executive Vice President, President, Life Science Group in May 2024. Previously Mr. Barry was Senior Vice President Global Manufacturing Operations from 2022 to 2024, Senior Vice President, Quality Controls Division from 2020 to 2022, and Vice President/General Manager, Quality Controls Division from 2017 to 2020. Prior to joining Bio-Rad in 2017, Mr. Barry held roles of increasing responsibility at Beckman Coulter, a Danaher Corporation company that is a global life sciences and diagnostics innovator, from 1999 to 2017. He holds a B.S. degree in Mechanical Engineering from Rose Hulman Institute of Technology and an MBA from Pepperdine University.

Ms. Litherland retired in 2015 as a Partner at Deloitte & Touche LLP, where she worked since 1981. She is a certified public accountant with 34 years of experience working with life science and technology companies in both audit and consulting capacities. Ms. Litherland currently serves on the Board of Directors and as Audit Committee chair of Rapid Micro Biosystems, Inc., a publicly traded life sciences technology company. Ms. Litherland is a member of the American Institute of CPAs (AICPA) and previously served for 12 years on the Board of Directors of Ronald McDonald House Charities Bay Area, including serving on the Finance Committee.

Mr. Edwards retired from Allergan, Inc., a multi-specialty health care company, in February 2015 after nearly 22 years at Allergan. From September 2005 to August 2014, he served as Executive Vice President, Finance and Business Development, Chief Financial Officer at Allergan. From 2003 to 2005 he served as Allergan's Corporate Vice President, Corporate Development and previously served as Senior Vice President, Treasury, Tax and Investor Relations. Prior to joining Allergan, Mr. Edwards was with Banque Paribas and Security Pacific National Bank, where he held various senior-level positions in the credit and business development functions. Mr. Edwards currently serves on the Board of Directors, on the Nominating and Governance Committee, and as Audit Committee chair of Kyntra Bio, Inc. (formerly known as FibroGen, Inc.), a publicly traded biopharmaceutical company; and on the Board of Directors, the Nominating and Corporate Governance Committee and the Audit Committee of Clearside Biomedical, Inc., a publicly traded development stage pharmaceutical company. Mr. Edwards previously served on the Board of Directors of Lifecore Biomedical, Inc., (NASDAQ: LFCR) from October 2020 until November 2024. Mr. Edwards has over 35 years of public company experience.

Sedat Evran was appointed Executive Vice President, Global Supply Chain in September 2023. Prior to joining Bio-Rad, Mr. Evran was Vice President, Global Operations and Supply Chain at Danaher Corporation, a global life sciences and diagnostics innovator, from 2020 to 2023, and Vice President, Operations and Supply Chain Seed from 2019 to 2020. Prior to that, he was Vice President, Diagnostics Global Operations at Perkin Elmer, a global analytical services and solutions provider, from 2015 to 2019. Mr. Evran held supply chain leadership roles at Hil-Rom from 2011 to 2015, and at GE Healthcare and General Electric Medical Systems from 2001 to 2011.

Ms. Schwartz is currently the Company's Vice President, Global Supply Chain Clinical Diagnostics Group Operations, a role to which she was appointed in November 2024. Prior to this assignment, Ms. Schwartz served as the Commercial Director at Bio-Rad Laboratories (Canada) Limited (a subsidiary of the Company) from January 2023 to November 2024. Prior to that, Ms. Schwartz served as the Marketing Director at Bio-Rad Laboratories (Canada) Limited from July 2021 to January 2023, and as the Commercial Services Director at the Company from 2016 until 2021, with accountabilities in these roles spanning global digital marketing, eCommerce, customer experience, and pricing. Since joining Bio-Rad in 2005, she has held positions in domestic and international brand development, product marketing and logistics management.

Courtney C. Enloe was appointed Executive Vice President, General Counsel and Secretary in April 2024. Prior to joining Bio-Rad, Ms. Enloe held several senior legal positions at 3M, a multinational conglomerate operating through its Safety & Industrial, Transportation & Electronics, Health Care, and Consumer business groups, from 2017 to 2024, including most recently Senior Vice President and Deputy General Counsel from January 2022 to April 2024, Senior Vice President and Global Head of Government Affairs (Interim) from August 2021 to February 2022, and Senior Vice President and Chief Litigation Counsel from April 2021 to December 2021. Prior to that, Ms. Enloe was Chief Counsel at McKesson, a global health care company, from 2016 to 2017 and Lead Counsel - Litigation from 2014 to 2016. Prior to that, Ms. Enloe held senior legal roles at Georgia-Pacific, LLC and EarthLink. She began her career at the law firms of Alston & Bird and Holland & Knight following a judicial clerkship. Ms. Enloe holds a JD from Washington and Lee University School of Law and a BA with Honors (magna cum laude) in English and political science from Samford University.

Eva Anette Engelhardt was appointed Executive Vice President, President, Clinical Diagnostics Group in June 2024. Prior to joining Bio-Rad, Ms. Engelhardt was at Cepheid, a wholly owned subsidiary of Danaher Corporation and a global molecular diagnostics company, as Senior Vice President Global R&D from November 2022 to May 2024 and Senior Vice President and General Manager Emerging & Growth Opportunities Business from March 2022 to November 2022. Prior to that, Ms. Engelhardt held several senior positions at bioMerieux Inc., a global in vitro diagnostics company, from 2010 to 2022, including Senior Vice President New Technologies Franchise from 2019 to 2022, and Senior Vice President Microbiology Business Area from 2014 to 2019. Ms. Engelhardt also was CEO of privately held AB BIODISK from 2007 to 2010. She holds a combined Master of Science and Bachelor of Science degree in Chemical Engineering and Polymer Technology from the Royal Institute of Technology in Stockholm, Sweden.