Cowen Group, Inc. (“Cowen”) (NASDAQ: COWN) today announced that Timothy Arcuri has joined the firm’s Equity Research department as a Managing Director to cover Semiconductors and Semiconductor Capital Equipment companies. Mr. Arcuri, based in San Francisco, reports to Robert Fagin, Cowen’s Director of Research. "We are happy to welcome Tim back to Cowen," said Mr. Fagin. “His extensive experience will be a valuable asset to our technology equity research franchise as we strive to provide our clients with the highest quality analysis and industry intelligence.” Mr. Arcuri returns to Cowen after a previous career at the company from 1998-2000. He most recently served as a senior analyst at Citigroup, covering Semiconductor Capital Equipment, Alternative Energy and Biofuels since 2004. Prior to this, he was a senior analyst at Deutsche Bank for four years covering Semiconductor Capital Equipment. Mr. Arcuri has been a top ranked analyst on Institutional Investor’s All America Research Team over the past eight years. He holds an engineering degree from Villanova University. About Cowen Group, Inc. Cowen Group, Inc. is a diversified financial services firm and, together with its consolidated subsidiaries, provides alternative investment management, investment banking, research, and sales and trading services through its two business segments: Ramius and its affiliates make up the Company's alternative investment management segment, while Cowen and Company is its broker-dealer segment. Its alternative investment management products, solutions and services include hedge funds, replication products, managed futures funds, fund of funds, real estate, health care royalty funds and cash management services. 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.