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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001119249-10-000007.txt : 20100820
<SEC-HEADER>0001119249-10-000007.hdr.sgml : 20100820
<ACCEPTANCE-DATETIME>20100820061919
ACCESSION NUMBER:		0001119249-10-000007
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100819
FILED AS OF DATE:		20100820
DATE AS OF CHANGE:		20100820

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TAY WILLIAM
		CENTRAL INDEX KEY:			0001119249

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-53689
		FILM NUMBER:		101028857

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 42198
		STREET 2:		*
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19101

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Greenrock Ventures, Inc.
		CENTRAL INDEX KEY:			0001432274
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		C/O ROMAN ZHERDYTSKYI
		STREET 2:		DMITRIVSKA STR 71/7
		CITY:			KIEV
		STATE:			2H
		ZIP:			01135
		BUSINESS PHONE:		80974045651

	MAIL ADDRESS:	
		STREET 1:		C/O ROMAN ZHERDYTSKYI
		STREET 2:		DMITRIVSKA STR 71/7
		CITY:			KIEV
		STATE:			2H
		ZIP:			01135
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-08-19</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001432274</issuerCik>
        <issuerName>Greenrock Ventures, Inc.</issuerName>
        <issuerTradingSymbol>none</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001119249</rptOwnerCik>
            <rptOwnerName>TAY WILLIAM</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 42198</rptOwnerStreet1>
            <rptOwnerStreet2>*</rptOwnerStreet2>
            <rptOwnerCity>PHILADELPHIA</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19101</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Former Officer and Director</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.0001 per share(the &quot;Common Stock&quot;)</value>
            </securityTitle>
            <transactionDate>
                <value>2010-08-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>31026600</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.0019</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>313400</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <remarks>NOTE: On August 19, 2010, William Tay completed the sale of 31,026,600 of his shares in the Issuer to Pure Wind Energy Investments Limited, Colierna Investments LTD and Carat Consulting &amp; Trading Limited.  As part of the transaction, Mr. Tay resigned as an officer and director of the Issuer effective on August 19, 2010.

Former President, Secretary, Treasurer, Director, and 10% Owner.</remarks>

    <ownerSignature>
        <signatureName>/s/ William Tay</signatureName>
        <signatureDate>2010-08-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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