Kivanç Kirgiz, Vice President
Kivanç Kirgiz. has more than fifteen years of experience applying economic and financial analysis to issues arising in business litigation. Dr. Kirgiz has worked on many large-scale antitrust matters involving allegations of collusion, price fixing, bid rigging, monopolization, and exclusionary conduct. He has worked with counsel to develop case strategy and has managed case teams that have analyzed class certification, liability, and damages issues for testifying experts. Dr. Kirgiz has experience in a variety of industries, including healthcare, auto parts, insurance, energy, chemicals, synthetic rubber, transportation, retail, and pharmaceuticals. In addition to antitrust litigation, Dr. Kirgiz has consulted on multiple matters involving false advertising claims under the Lanham Act. In these cases, he has analyzed issues involving causation, demand dynamics, sales databases, and damages.
Dr. Kirgiz’s experience in litigation related to the Employee Retirement Income Security Act (ERISA) includes company stock drop, excessive fee, and institutional investing cases. He has prepared expert reports; consulted with attorneys during all phases of litigation, including deposition and trial; and conducted analysis and presented findings to the Department of Labor on damages issues. Dr. Kirgiz’s current research involves trends and statistics in ERISA stock drop lawsuit settlements.
Dr. Kirgiz has published articles on bundling, the effect of supply conditions on gasoline prices, and antitrust issues in distribution. Prior to joining Cornerstone Research, he taught courses in microeconomics and the economics of organization and management at Duke University.
Sophia Vandergrift, Special Counsel
Sullivan & Cromwell LLP
Sophia Vandergrift is a Special Counsel in Sullivan & Cromwell’s Litigation Group. Her practice focuses on antitrust counseling, merger investigations, and antitrust litigation, particularly in the healthcare, consumer and retail, and distribution industries. Before joining Sullivan & Cromwell in 2019, Ms. Vandergrift served in the Mergers IV Division of the Federal Trade Commission’s Bureau of Competition. While in that position, she played key roles on notable investigations and litigations such as Sysco/US Foods, Wilhelmsen/Drew Marine, Advocate Health Care/North Shore University HealthSystem, RDNC/Breakthru Beverage Group, and US Foods/SGA. During her time in government, Ms. Vandergrift also served as a Special Assistant United States Attorney.