<SEC-DOCUMENT>0001466538-15-000009-index.html : 20150330
<SEC-HEADER>0001466538-15-000009.hdr.sgml : 20150330
<ACCEPTANCE-DATETIME>20150330150931
ACCESSION NUMBER:		0001466538-15-000009
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20141231
FILED AS OF DATE:		20150330
DATE AS OF CHANGE:		20150330

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COWEN GROUP, INC.
		CENTRAL INDEX KEY:			0001466538
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34516
		FILM NUMBER:		15734120

	BUSINESS ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE, 20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-845-7900

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE, 20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LexingtonPark Parent Corp
		DATE OF NAME CHANGE:	20090617
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-K/A
<SEQUENCE>1
<FILENAME>a10k-a123114.htm
<DESCRIPTION>10-K/A
<TEXT>
Document 1 - file: a10k-a123114.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>cownex23110k-a2014.htm
<DESCRIPTION>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
<TEXT>
Document 2 - file: cownex23110k-a2014.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>3
<FILENAME>cownex31110k-a2014.htm
<DESCRIPTION>CERTIFICATION OF CEO PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT
<TEXT>
Document 3 - file: cownex31110k-a2014.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>4
<FILENAME>cownex31210k-a2014.htm
<DESCRIPTION>CERTIFICATION OF CFO PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT
<TEXT>
Document 4 - file: cownex31210k-a2014.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32
<SEQUENCE>5
<FILENAME>cownex3210k-a2014.htm
<DESCRIPTION>CERTIFICATION OF CEO AND CFO PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT
<TEXT>
Document 5 - file: cownex3210k-a2014.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>6
<FILENAME>cownex99110ka.htm
<DESCRIPTION>AUDITED FINANCIAL STATEMENTS OF STARBOARD VALUE A LP
<TEXT>
Document 6 - file: cownex99110ka.htm

</DOCUMENT>
</SEC-DOCUMENT>