Sellick, Stephen E

Stephen E. Sellick is an experienced consultant specializing in the management of complex quantitative analysis in litigation matters, particularly projects in environmental, mass tort and product liability claims.

Mr. Sellick founded Gnarus in 2007 and was its Managing Director from 2007 until Gnarus was acquired by Nathan Associates in 2017.  At Nathan, Mr. Sellick served as Senior Vice President and member of the Board of Directors; Mr. Sellick worked to combine team of experts from Gnarus and Nathan’s Litigation practice and was the senior executive for Nathan’s Litigation business. Mr. Sellick joined the re-launched Gnarus in February 2022 as its Board Chairman.

As Gnarus’ Board Chairman, Mr. Sellick works with Gnarus executives and its Board to determine the overall direction and strategy of the company consistent with our team’s vision and values. For clients, Mr. Sellick evaluates claims in insurance allocation, internal management, cost allocation, cost recovery and litigation risk analysis. He also participates in studies involving regulatory economics, cost accounting and financial analysis of the electric utility industry. He works with clients in insurance, consumer manufacturing, electronics, aerospace, natural gas, pharmaceuticals, electric utility, and agricultural products industries.

Mr. Sellick holds an M.A. in Public Policy Studies from the University of Chicago and a B.S. in Economics from the Wharton School at the University of Pennsylvania.

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