Rob Walton is an American businessman and the eldest son of Sam Walton, the founder of Walmart. Born on October 28, 1944, he served as the chairman of the board of Walmart from 1992 until 2015. Under his leadership, Walmart expanded significantly, becoming one of the largest retail chains in the world. In addition to his role at Walmart, Rob Walton is known for his involvement in various philanthropic efforts, particularly in education and community development. He has also served on the boards of several organizations, contributing to initiatives that promote sustainability and social responsibility.