-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 xpdVKsPzsD0d0/9fKZzeZg==

<SEC-DOCUMENT>0001193805-10-001262.txt : 20100504
<SEC-HEADER>0001193805-10-001262.hdr.sgml : 20100504
<ACCEPTANCE-DATETIME>20100504212217
ACCESSION NUMBER:		0001193805-10-001262
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100501
FILED AS OF DATE:		20100504
DATE AS OF CHANGE:		20100504

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TOLLGRADE COMMUNICATIONS INC \PA\
		CENTRAL INDEX KEY:			0001002531
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-TELEPHONE INTERCONNECT SYSTEMS [7385]
		IRS NUMBER:				251537134
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		493 NIXON RD
		CITY:			CHESWICK
		STATE:			PA
		ZIP:			15024
		BUSINESS PHONE:		4122742156

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			COHEN PETER A
		CENTRAL INDEX KEY:			0001042589

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10799133

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		STREET 2:		20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STRAUSS THOMAS W
		CENTRAL INDEX KEY:			0001043935

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10799131

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		STREET 2:		20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SOLOMON JEFFREY M
		CENTRAL INDEX KEY:			0001275922

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10799130

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RCG HOLDINGS LLC
		CENTRAL INDEX KEY:			0001050154
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10799128

	BUSINESS ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		STREET 2:		20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2122014823

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		STREET 2:		20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	RAMIUS LLC
		DATE OF NAME CHANGE:	20080617

	FORMER NAME:	
		FORMER CONFORMED NAME:	RAMIUS CAPITAL GROUP LLC
		DATE OF NAME CHANGE:	20010212

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			C4S & CO LLC
		CENTRAL INDEX KEY:			0001267474
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10799134

	BUSINESS ADDRESS:	
		STREET 1:		RAMIUS LLC
		STREET 2:		599 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2122014823

	MAIL ADDRESS:	
		STREET 1:		RAMIUS LLC
		STREET 2:		599 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STARK MORGAN B
		CENTRAL INDEX KEY:			0001267535

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10799132

	MAIL ADDRESS:	
		STREET 1:		C/O RAMIUS LLC
		STREET 2:		599 LEXINGTON AVENUE 20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			COWEN GROUP, INC.
		CENTRAL INDEX KEY:			0001466538
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10799129

	BUSINESS ADDRESS:	
		STREET 1:		1221 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020
		BUSINESS PHONE:		(646) 562-1000

	MAIL ADDRESS:	
		STREET 1:		1221 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020

	FORMER NAME:	
		FORMER CONFORMED NAME:	LexingtonPark Parent Corp
		DATE OF NAME CHANGE:	20090617

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Ramius LLC
		CENTRAL INDEX KEY:			0001475770
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10799135

	BUSINESS ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212 845 7900

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	Park Exchange LLC
		DATE OF NAME CHANGE:	20091030
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>e606911_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-05-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001002531</issuerCik>
        <issuerName>TOLLGRADE COMMUNICATIONS INC \PA\</issuerName>
        <issuerTradingSymbol>TLGD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001475770</rptOwnerCik>
            <rptOwnerName>Ramius LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>599 LEXINGTON AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001267474</rptOwnerCik>
            <rptOwnerName>C4S &amp; CO LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>599 LEXINGTON AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001042589</rptOwnerCik>
            <rptOwnerName>COHEN PETER A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVE., 20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Explanation of Responses</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001267535</rptOwnerCik>
            <rptOwnerName>STARK MORGAN B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVE., 20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Explanation of Responses</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001043935</rptOwnerCik>
            <rptOwnerName>STRAUSS THOMAS W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVE., 20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Explanation of Responses</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001275922</rptOwnerCik>
            <rptOwnerName>SOLOMON JEFFREY M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVE., 20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Explanation of Responses</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001466538</rptOwnerCik>
            <rptOwnerName>COWEN GROUP, INC.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001050154</rptOwnerCik>
            <rptOwnerName>RCG HOLDINGS LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.20 per share</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>335244</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Ramius Navigation Master Fund Ltd</value>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.20 per share</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>794514</value>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By RCG PB, Ltd</value>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.20 per share</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>965199</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Ramius Value &amp; Opportunity Master</value>
                    <footnoteId id="F8"/>
                    <footnoteId id="F9"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the second of two identical reports relating to the same transaction being filed with the Securities and Exchange Commission.</footnote>
        <footnote id="F2">Each Reporting Person (other than Ramius Value and Opportunity Master Fund Ltd, Ramius Navigation Master Fund Ltd and RCG PB, Ltd) disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F3">Ramius Enterprise Master Fund Ltd (Enterprise Master Fund) transferred shares of Common Stock held by it to Ramius Navigation Master Fund Ltd (Navigation Master Fund) in a transaction exempt from Section 16 of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16a-13 or otherwise.</footnote>
        <footnote id="F4">Shares of Common Stock beneficially owned by Navigation Master Fund.  As the sole member of Ramius Advisors, LLC (Ramius Advisors), the investment advisor of Navigation Master Fund, Ramius LLC (Ramius) may be deemed to beneficially own the shares of Common Stock beneficially owned by Navigation Master Fund.  As the sole member of Ramius, Cowen Group, Inc. (Cowen) may be deemed to beneficially own the shares of Common Stock beneficially owned by Navigation Master Fund.  As a significant shareholder of Cowen, RCG Holdings LLC (RCG Holdings) may be deemed to beneficially own the shares of Common Stock beneficially owned by Navigation Master Fund.  As the managing member of RCG Holdings, C4S &amp; Co., L.L.C. (C4S) may be deemed to beneficially own the shares of Common Stock beneficially owned by Navigation Master Fund.</footnote>
        <footnote id="F5">(Continued from previous footnote). As the managing members of C4S, each of Messrs. Cohen, Stark, Solomon and Strauss may be deemed to beneficially own the shares of Common Stock beneficially owned by Navigation Master Fund.</footnote>
        <footnote id="F6">Navigation Master Fund transferred shares of Common Stock held by it to RCG PB, Ltd (RCG PB) in a transaction exempt from Section 16 of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16a-13 or otherwise.</footnote>
        <footnote id="F7">Shares of Common Stock beneficially owned by RCG PB. As the sole member of Ramius Advisors, the investment advisor of RCG PB, Ramius may be deemed to beneficially own the shares of Common Stock beneficially owned by RCG PB.  As the sole member of Ramius, Cowen may be deemed to beneficially own the shares of Common Stock beneficially owned by RCG PB.  As the majority shareholder of Cowen, RCG Holdings may be deemed to beneficially own the shares of Common Stock beneficially owned by RCG PB.  As the managing member of RCG Holdings, C4S may be deemed to beneficially own the shares of Common Stock beneficially owned by RCG PB. As the managing members of C4S, each of Messrs. Cohen, Stark, Solomon and Strauss may be deemed to beneficially own the shares of Common Stock beneficially owned by RCG PB.</footnote>
        <footnote id="F8">Shares of Common Stock beneficially owned by Ramius Value and Opportunity Master Fund Ltd (Value and Opportunity Master Fund). As the sole member of RCG Starboard Advisors, LLC (RCG Starboard Advisors), the investment manager of Value and Opportunity Master Fund, Ramius may be deemed to beneficially own the shares of Common Stock beneficially owned by Value and Opportunity Master Fund.  As the sole member of Ramius, Cowen may be deemed to beneficially own the shares of Common Stock beneficially owned by Value and Opportunity Master Fund.  As a significant shareholder of Cowen, RCG Holdings may be deemed to beneficially own the shares of Common Stock beneficially owned by Value and Opportunity Master Fund.</footnote>
        <footnote id="F9">(Continued from previous footnote).  As the managing member of RCG Holdings, C4S may be deemed to beneficially own the shares of Common Stock beneficially owned by Value and Opportunity Master Fund. As the managing members of C4S, each of Messrs. Cohen, Stark, Solomon and Strauss may be deemed to beneficially own the shares of Common Stock beneficially owned by Value and Opportunity Master Fund.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Ramius LLC; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-05-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: C4S &amp; Co., L.L.C., By: /s/ Owen S. Littman, as Attorney in Fact for Jeffrey M. Solomon, as Managing Member</signatureName>
        <signatureDate>2010-05-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: /s/ Owen S. Littman, as Attorney in Fact for Peter A. Cohen</signatureName>
        <signatureDate>2010-05-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: /s/ Owen S. Littman, as Attorney in Fact for Morgan B. Stark</signatureName>
        <signatureDate>2010-05-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: /s/ Owen S. Littman, as Attorney in Fact for Thomas W. Strauss</signatureName>
        <signatureDate>2010-05-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: /s/ Owen S. Littman, as Attorney in Fact for Jeffrey M. Solomon</signatureName>
        <signatureDate>2010-05-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: Cowen Group, Inc.; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-05-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: RCG Holdings LLC; By /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-05-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
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