. . . . "Gregory B. \"Greg\" Penner is an American Venture Capitalist. Penner was named the Chairman of Walmart on June 5, 2015. He is the son-in-law of S. Robson Walton and the grandson-in-law of Sam Walton, the founder of Walmart."@en . . . . . . . "Greg Penner"@en . . . . . .