Cowen Group, Inc. (“Cowen”) (NASDAQ: COWN) today announced that Paul Silverstein has joined the firm’s Equity Research department as a Managing Director to cover Data Networking and Wireline Equipment. Mr. Silverstein, based in New York, reports to Robert Fagin, Cowen’s Director of Research. “With over 17 years of equity research experience, Paul is recognized as an expert within the networking and communications infrastructure sector,” said Mr. Fagin. “As we continue to strategically expand our equity research team in ways that will add the most value to our firm's client base, I’m confident that Paul will prove to be a tremendous contributor to the platform’s future growth.” With a team of a dozen distinguished analysts specializing in technology, media and telecommunications, Cowen and Company is a leader in providing insight, expertise, research and strategy to its clients in this space. Given the industry’s rapid expansion and critical impact on the global economy, Cowen is committed to continue making TMT a strong focus area and core component of the firm’s coverage. Most recently, Mr. Silverstein was a Director at Credit Suisse's equity research department, covering the communications infrastructure industry since May 2004. Prior to joining Credit Suisse, he was a senior analyst in equity research at Robertson Stephens from 1996 to 2002 and at Needham & Co. from 2003 to 2004. Prior to becoming a securities analyst, Mr. Silverstein practiced corporate and securities law as an associate at Weil Gotshal & Manges from 1989 to 1992 and at Pryor Cashman Sherman & Flynn from 1992 to 1994. He holds an M.B.A. from Columbia Business School, a J.D. from Cornell Law School and a B.A. from the University of Pennsylvania. About Cowen Group, Inc. Cowen Group, Inc. is a diversified financial services firm and, together with its consolidated subsidiaries, provides alternative investment, investment banking, research, and sales and trading services through its two business segments: Ramius and its affiliates makes up the Company’s alternative investment segment, while Cowen and Company is its broker-dealer segment. Its alternative investment products, solutions and services include hedge funds, replication products, managed futures funds, fund of funds, real estate and health care royalty funds. Cowen and Company offers industry focused investment banking for growth-oriented companies, domain knowledge-driven research and a sales and trading platform for institutional investors. Founded in 1918, the firm is headquartered in New York and has offices located in major financial centers around the world.