Cowen Inc. announced that William Prager has joined the Company as Managing Director and Head of ETF Trading. In this role he will oversee the continued growth of Cowen’s ETF trading capabilities and platform. Mr. Prager will be based in New York and report to Kyle Solomon, Managing Director and U.S. Head of Alternative Equity Strategies and Drew Forman, Managing Director and Head of Derivatives. Prior to joining Cowen, Mr. Prager spent 13 years at Barclays Capital where he was Managing Director and Head of ETF Trading.