Mr. Dehnert is a former financial executive with 30 years of experience in investment banking, securities and investment management. He formerly served as Managing Director of Goldman Sachs Execution & Clearing, L.P, overseeing the Prime Services Risk team globally for Prime Services in the Securities Division. Prior to that, he was head of the Quantitative Trading and Specialists business. Mark was named managing director in 2000, following Goldman Sachs' acquisition of the Hull Group, and partner in 2002.