Cowen Group, Inc. (“Cowen”) (NASDAQ:COWN) today announced the expansion of Cowen and Company’s institutional equity sales team with the appointment of Erica Yoon. Ms. Yoon joins as Managing Director with a focus on technology, media and telecom (TMT) sales. She will be based in New York and report to Philip Cushman, Cowen’s Head of Equity Sales. “We are delighted to welcome Erica to our team,” said Mr. Cushman. “Erica has extensive experience in TMT sales and deep relationships within the mutual fund and hedge fund community. Cowen has been a leading voice in the sector for half a century and currently covers more than 130 TMT stocks. Erica will bring our clients agenda-setting research, such as our award winning Ahead of the Curve TM series, access to our annual TrendSpotting and TMT Conferences, plus the nuanced and tenured perspective that only comes with years of TMT experience. We are confident that Erica will be an important contributor to Cowen’s overall franchise.” Ms. Yoon joins Cowen from Pacific Crest Securities, where she was a Managing Director and drove coverage for large New York institutional clients. Previously, she was a Managing Director at UBS, focused on TMT sales. For 15 years prior to that, Ms. Yoon held senior TMT sales roles at Jefferies and Merrill Lynch. Ms. Yoon holds a BA in Economics from Wellesley College and an MBA in finance from The University of Chicago, Booth School of Business. About Cowen Group, Inc. Cowen Group, Inc. is a diversified financial services firm and, together with its consolidated subsidiaries, provides alternative asset 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 segment, while Cowen and Company and its affiliates make up the Company’s broker-dealer segment. Ramius provides alternative asset management solutions to a global client base and manages a significant portion of Cowen’s proprietary capital. Cowen and Company and its affiliates offer 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.