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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 VZ2O/uOR06gfVr3TzM6P/+MGUX6+SGqsxtnxZKgY4U9878Xae3Mf/ag+dewldKXc
 0nk0rPq8uMPRYnsyA/rz4g==

<SEC-DOCUMENT>0000893750-05-000188.txt : 20050404
<SEC-HEADER>0000893750-05-000188.hdr.sgml : 20050404
<ACCEPTANCE-DATETIME>20050404145853
ACCESSION NUMBER:		0000893750-05-000188
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050331
FILED AS OF DATE:		20050404
DATE AS OF CHANGE:		20050404

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INSTINET GROUP INC
		CENTRAL INDEX KEY:			0001132327
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		IRS NUMBER:				134134098
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3 TIME SQUARE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2123109500

	MAIL ADDRESS:	
		STREET 1:		3 TIME SQUARE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSTINET GROUP LLC
		DATE OF NAME CHANGE:	20010207

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSTINCT GROUP LLC
		DATE OF NAME CHANGE:	20010110

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			REUTERS GROUP PLC   /ADR/
		CENTRAL INDEX KEY:			0001056084
		STANDARD INDUSTRIAL CLASSIFICATION:	PERIODICALS:  PUBLISHING OR PUBLISHING AND PRINTING [2721]

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-32717
		FILM NUMBER:		05729327

	BUSINESS ADDRESS:	
		STREET 1:		85 FLEET STREET
		STREET 2:		7TH FLOOR
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC4P 4AJ
		BUSINESS PHONE:		44 (0) 207 250 1122

	MAIL ADDRESS:	
		STREET 1:		85 FLEET STREET
		STREET 2:		7TH FLOOR
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC4P 4AJ
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-03-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001132327</issuerCik>
        <issuerName>INSTINET GROUP INC</issuerName>
        <issuerTradingSymbol>INGP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001056084</rptOwnerCik>
            <rptOwnerName>REUTERS GROUP PLC   /ADR/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>85 FLEET STREET</rptOwnerStreet1>
            <rptOwnerStreet2>7TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>EC4P 4AJ</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.01 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2005-03-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3751527</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>210651527</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Reuters C LLC</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The sale by Reuters C LLC to Instinet Group Incorporated of 100% of the outstanding capital stock of Bridge Trading Company,
a corporation organized under the laws of the State of Delaware, in consideration for Instinet Group Incorporated common
stock, $0.01 par value per share.</footnote>
        <footnote id="F2">1,000 shares of Bridge Trading Company common stock, par value $1.00 per share, representing $21.5 million.</footnote>
        <footnote id="F3">The shares of Instinet Group Incorporated beneficially owned by Reuters Group PLC are held in the name of Reuters C LLC.
Reuters C LLC is wholly-owned by Reuters America Holdings Inc., which is wholly-owned by Retuers International Holdings
S.a.r.l., which is wholly-owned by Reuters Overseas Holdings BV, which is 98.6% owned by Retuers Group Overseas Holdings
(UK) Limited, which is wholly-owned by Reuters Limited, which is wholly-owned by Retuers Holdings Limited, which is 96.5%
owned by Retuers Group PLC.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Nancy C. Gardner (Authorized Representative)</signatureName>
        <signatureDate>2005-04-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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