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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 JgjkrDbE13ilumBEmusiKZpkJFz6UEuottOfZcKY+oYdPsD49QMwU9x9AGefyHJZ
 ujjyyZFdUVc4eAdUG7LrBg==

<SEC-DOCUMENT>0001181431-04-000424.txt : 20040105
<SEC-HEADER>0001181431-04-000424.hdr.sgml : 20040105
<ACCEPTANCE-DATETIME>20040105110928
ACCESSION NUMBER:		0001181431-04-000424
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040103
FILED AS OF DATE:		20040105

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BALY DOMINIQUE F
		CENTRAL INDEX KEY:			0001191271

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09781
		FILM NUMBER:		04502373

	BUSINESS ADDRESS:	
		STREET 1:		C/O MILLIPORE CORP
		CITY:			BEDFORD
		STATE:			MA
		ZIP:			01730
		BUSINESS PHONE:		7815332272

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MILLIPORE CORP /MA
		CENTRAL INDEX KEY:			0000066479
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
		IRS NUMBER:				042170233
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		80 ASHBY RD
		CITY:			BEDFORD
		STATE:			MA
		ZIP:			01730
		BUSINESS PHONE:		7815336000

	MAIL ADDRESS:	
		STREET 1:		80 ASHBY ROAD
		CITY:			BEDFORD
		STATE:			MA
		ZIP:			01730

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MILLIPORE CORP
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MILLIPORE FILTER CORP
		DATE OF NAME CHANGE:	19661116
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd27158.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2004-01-03</periodOfReport><notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000066479</issuerCik>
        <issuerName>MILLIPORE CORP /MA</issuerName>
        <issuerTradingSymbol>MIL</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001191271</rptOwnerCik>
            <rptOwnerName>BALY DOMINIQUE F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>290 CONCORD ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BILLERICA</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode>01821</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Vice President</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock 1.00 par value</value></securityTitle><transactionDate><value>2004-01-03</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>F</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>242</value></transactionShares><transactionPricePerShare><value>43.07</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>19451.571</value><footnoteId id="F1"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directO
rIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>Common Stock, $1.00 Par Value</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>4323.511</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By 401(k) trust</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><footnotes><footnote id="F1">Includes 193.7 shares of Millipore Common Stock purchased by the reporting person under the Employees' Stock Purchse Plan, a Section 423 Plan, in August 2003 and November 2003</footnote></footnotes><remarks>The reporting person also directly owns employee stock options to purchase shares of Millipore Common Stock as follows: 5768 shares at 37.168 granted 12/12/1996 expiration 12/12/2005; 28273 shares at 46.06 granted 12/07/2001 expiration 12/7/2010; 79163 shares at 60.96
 granted 12/05/2001 expiration 12/05/2011; 60000 shares at 31.94 granted 02/13/2003 expiration 02/13/2013. Options become exercisable in annual cumulative incements of 25% commencing on the first anniversary of the date of grant and all options expire no later than 10 years after the date of grant.</remarks><ownerSignature><signatureName>patricia a. powers, attorney in fact</signatureName><signatureDate>2004-01-05</signatureDate></ownerSignature></ownershipDocument>



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