Stock Trading History of Malcolm David M.

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Malcolm David M. since year 2005. The trader's CIK number is 1428930. At the time of this reporting, Malcolm David M. is the CEO and President of Cowen Group, Inc. . (stock ticker symbol COWN). See this page for all insider trading activities at Cowen Group, Inc. .

Stock purchases, sales, and option exercises reported by insider *Malcolm David M.* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-05-30	COWN	Cowen Group, Inc.	Purchase	14,100	7.86	110,885
2008-05-29	COWN	Cowen Group, Inc.	Purchase	5,900	7.96	46,959
2008-05-12	COWN	Cowen Group, Inc.	Purchase	3,000	6.95	20,851
2008-05-09	COWN	Cowen Group, Inc.	Purchase	5,000	6.95	34,735
2008-03-06	COWN	Cowen Group, Inc.	Purchase	10,000	7.04	70,449
2008-03-05	COWN	Cowen Group, Inc.	Purchase	20,000	7.00	139,904

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Malcolm David M. (CEO and President of Cowen Group, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.