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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>0001181431-05-028288.txt : 20050516
<SEC-HEADER>0001181431-05-028288.hdr.sgml : 20050516
<ACCEPTANCE-DATETIME>20050516214206
ACCESSION NUMBER:		0001181431-05-028288
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050512
FILED AS OF DATE:		20050516
DATE AS OF CHANGE:		20050516

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WOLF TIMOTHY V
		CENTRAL INDEX KEY:			0001189245

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14829
		FILM NUMBER:		05836955

	BUSINESS ADDRESS:	
		STREET 1:		C/O ADOLPH COORS CO
		STREET 2:		311 10TH STREET NH311 P O BOX 4030
		CITY:			GOLDEN
		STATE:			CO
		ZIP:			80401-0030
		BUSINESS PHONE:		3032796565

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MOLSON COORS BREWING CO
		CENTRAL INDEX KEY:			0000024545
		STANDARD INDUSTRIAL CLASSIFICATION:	MALT BEVERAGES [2082]
		IRS NUMBER:				840178360
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1228

	BUSINESS ADDRESS:	
		STREET 1:		P.O. BOX 4030, MAIL #NH375
		CITY:			GOLDEN
		STATE:			CO
		ZIP:			80401
		BUSINESS PHONE:		3032773271

	MAIL ADDRESS:	
		STREET 1:		311 10TH STREET
		CITY:			GOLDEN
		STATE:			CO
		ZIP:			80401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COORS ADOLPH CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd79090.xml
<DESCRIPTION>05/12/05 RSU
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-05-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000024545</issuerCik>
        <issuerName>MOLSON COORS BREWING CO</issuerName>
        <issuerTradingSymbol>TAP.A; TAP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001189245</rptOwnerCik>
            <rptOwnerName>WOLF TIMOTHY V</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MOLSON COORS BREWING COMPANY</rptOwnerStreet1>
            <rptOwnerStreet2>311 10TH STREET, NH 355</rptOwnerStreet2>
            <rptOwnerCity>GOLDEN</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80401</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>V.P., Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class B Common Stock (non-voting) - NO CHANGE</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>39.82</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>401 (k) Plan</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock (non-voting)</value>
            </securityTitle>
            <transactionDate>
                <value>2005-05-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14234</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class B Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>225749</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>225749</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The amount of securities in the Reporting Persons 401(k) is derived by combining the value of contributions by Reporting Person to their 401(k) plus Company matches to the Reporting Persons 401(k) and dividing this account balance by the Issuer's stock price as of 12/31/03 - this equals the reported number of shares in the Reporting Persons 401(k) account.</footnote>
        <footnote id="F2">Reporting Person holds an aggregate of 225,749 stock options, which have various exercise prices, grant dates and expiration dates.</footnote>
        <footnote id="F3">These shares were issued as a restricted stock unit under the Issuer's Incentive Compensation Plan and shall vest on the third anniversary following the date of grant, subject to acceleration or cancellation upon the occurrence of certain events.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Annita M. Menogan as agent for Timothy V. Wolf</signatureName>
        <signatureDate>2005-05-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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