Mr. Macpherson has served as Chief Executive Officer of W.W. Grainger, Inc., a leading broad-line distributor of MRO products and services with operations primarily in North America and Japan, since 2016, and as Chairman since 2017. Previously, he served as Grainger's Chief Operating Officer, as well as Senior Vice President and Group President, Global Supply Chain and International.
Prior to joining Grainger in 2008, he was a Partner and Managing Director at Boston Consulting Group and began his career as a test engineer with the U.S. Air Force. He was appointed to the DuPont Board effective immediately on January 20, 2026 and was determined to be an "independent director" under the New York Stock Exchange listing standards, the SEC's rules and regulations and the Company's Corporate Governance Guidelines. He holds a bachelor's degree from Stanford University and an MBA from Northwestern's Kellogg School of Management, and serves on the Nomination and Governance Committee.