Biography PhotoStuart L. Levenick, age 62, is a retired Group President of Caterpillar Inc., a manufacturer of construction and mining equipment, diesel and natural gas engines, and industrial gas turbines. Prior to assuming that position in 2004, Mr. Levenick served as Vice President, Caterpillar Inc., and Chairman of Shin Caterpillar Mitsubishi Ltd. from 2000 to 2004, and as Vice President, Asia Pacific Division, from 2001 to 2004. He is also a director of Entergy Corporation, where he chairs its finance committee and is a member of its audit committee. Mr. Levenick, an independent director, was first appointed a director of Grainger in 2005, and is the Lead Director, Chair of the Board Affairs and Nominating Committee and a member of the Compensation Committee.

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