Cowen Adds to Equity Capital Markets Team

Eric Helenek Joins as Managing Director

NEW YORK–(BUSINESS WIRE)–May. 28, 2013–
Cowen Group, Inc. (NASDAQ: COWN) today announced that Eric Helenek has
joined Cowen and Company’s Equity Capital Markets group as Managing
Director. Based in New York, Mr. Helenek will report to Grant Miller,
Cowen’s Head of Equity Capital Markets.

“I am very pleased to welcome Eric to our team,” said Grant Miller.
“Eric has extensive experience in the origination and execution of
capital raising transactions in both equity and debt as well as sector
expertise in energy and technology. Our goal has been to deliver the
most appropriate financing advice and superior execution services to our
clients. His capabilities will be highly complementary to our team and
serve our clients well.”

Mr. Helenek joins Cowen from Lazard Frères LLC, where he was a Director
in the Alternative Capital Finance Group responsible for the origination
and execution of privately-executed financings for public companies in
the energy and technology sectors. Previously, he was a Vice President
at Piper Jaffray focused on privately-executed financings and SG Cowen,
where he began his career in 1998. Mr. Helenek holds a B.S. in Finance
from the University of Colorado.

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.

Source: Cowen Group, Inc.

Sard Verbinnen & Co
Dan Gagnier/Carissa Ramirez
212-687-8080

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