Item 4. MINE SAFETY DISCLOSURES

Not applicable.

INFORMATION ABOUT OUR EXECUTIVE OFFICERS

The executive officers of the Company are set forth in this table. Generally, executive officers are elected by the Board of Directors annually at the regular meeting of the Board of Directors following the Annual Meeting of Shareholders. Additionally, executive officers may be elected upon hire or due to a promotion.


Name	Age	Position
Shane A. Campbell	45	Chief Proprietary Segment Officer since May 2025. Prior to joining West, he served as the Chief Commercial Officer of the Construction Materials business at Carlisle Companies Inc., a supplier of construction products. Prior to Carlisle, Mr. Campbell spent 20 years at DuPont, a global chemical company, and served in a number of senior global leadership roles.

Annette F. Favorite	61	Senior Vice President and Chief Human Resources Officer since October 2015. Prior to joining West, she spent more than 25 years at IBM Corporation, an information technology services company, in a number of strategic and global human resources roles, including Vice President, Global Talent Management, Vice President of Human Resources for Worldwide Software Sales, and Human Resources Leader for the company’s Southwest European Region, based out of Spain.

Norman D. Finch Jr.	61	Senior Vice President, General Counsel and Corporate Secretary since December 2025. Prior to joining West, he served as a legal, compliance, investment and HR advisor to start-up healthcare technology companies. Previously, he served as the SVP, General Counsel and Secretary for Illinois Tool Works Inc., overseeing the global legal function and serving as the primary legal advisor to the chief executive officer, the organization’s senior management team, and the Board of Directors. In addition, Mr. Finch held senior legal roles at Sealed Air Corporation as VP, General Counsel, Secretary and Human Resources and Zimmer Holdings, Inc. (now Zimmer Biomet) as VP, Associate General Counsel and Chief Compliance Officer. He began his law career at Fulbright & Jaworski (now Norton Rose Fulbright), serving in the pharmaceutical and medical device practice group.

Eric M. Green	56	Chair of the Board since May 2022. Chief Executive Officer since April 2015 and President since December 2015. Prior to joining West, he was Executive Vice President and President of the Research Markets business unit at Sigma-Aldrich Corporation from 2013 to 2015. From 2009 to 2013, he served as Vice President and Managing Director, International, where he was responsible for Asia Pacific and Latin America, and prior thereto, held various commercial and operational roles. He has also served as an Independent Director at Ecolab, Inc. since 2022.

Robert W. McMahon	56	Senior Vice President & Chief Financial Officer since August 2025. Prior to joining West, he served as the Chief Financial Officer of Agilent Technologies Inc, a provider in application focused solutions that include instruments, software, services and consumables for the entire laboratory workflow. At Agilent, he was responsible for finance, audit, treasury, tax, investor relations, IT and procurement. From 2014 to 2018, Mr. McMahon served as Chief Financial Officer at Hologic, Inc, a developer, manufacturer and supplier of diagnostics products, medical imaging systems, and surgical products. Prior to Hologic, Mr. McMahon spent 20 years with Johnson & Johnson, a biotechnology, medical technology, and pharmaceutical manufacturer, in various executive financial roles of increasing responsibility. He has also served as an Independent Director at OraSure Technologies, Inc. since 2023.

Rudy J. Poussot	48	Senior Vice President, Strategy and Corporate Development since November 2023. Prior to joining West, Mr. Poussot served as the Director of Health Strategy, Business Operations at Google, a technology company, for the last three years. Prior to Google, Mr. Poussot has served for over 20 years in positions of increasing responsibility at a variety of companies including Illumina, Inc., Cardinal Health and McKinsey & Company.

Chad R. Winters	47	Vice President, Finance & Chief Accounting Officer since February 2024. Vice President, Chief Accounting Officer and Corporate Controller from May 2020 to February 2024. Vice President and Corporate Controller from October 2019 to May 2020. Prior to joining West, he served as Senior Vice President of Finance & Accounting and Controller of Amneal Pharmaceuticals, Inc., a specialty pharmaceutical company. Prior to Amneal, he held roles of increasing responsibility at the Chemours Company, UGI Corporation, and PricewaterhouseCoopers LLP.

PART II

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