Thomas Hill, Chairman & CEO at Vulcan Materials (NYSE:VMC), executed a substantial insider sell on August 13, according to an SEC filing. What Happened: Hill’s recent move involves selling 35,592 shares of Vulcan Materials. This information is documented in a Form 4 filing with the U.S. Securities and Exchange Commission on Tuesday. The total value is $8,699,714. As of Wednesday morning, Vulcan Materials shares are down by 0.0%, currently priced at $243.84. About Vulcan MaterialsVulcan Materials is the United States’ largest producer of construction aggregates (crushed stone, sand, and gravel)…