David Marx, Jr. is a partner in the law firm of McDermott Will & Emery LLP based in the Firm’s Chicago office, where he serves as head of the Firm's Chicago Antitrust & Competition Practice Group. His practice focuses on civil and criminal antitrust litigation and counseling, distribution issues and trade regulation matters. He also counsels corporate and health care industry clients, and individuals who are the subjects or targets of investigations or enforcement proceedings initiated by federal or state antitrust agencies, as well as parties in private civil litigation.