-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 IIA5Sepx6c0kvFiIgbfeLWV9iSGcVLQT5JB5t4bq494BJbZ1Q03PRQxQYt+h+hy0
 nIEnH/BA5MT3DKm8b29aLA==

<SEC-DOCUMENT>0000918214-05-000042.txt : 20050617
<SEC-HEADER>0000918214-05-000042.hdr.sgml : 20050617
<ACCEPTANCE-DATETIME>20050617130614
ACCESSION NUMBER:		0000918214-05-000042
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050615
FILED AS OF DATE:		20050617
DATE AS OF CHANGE:		20050617

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HUSIC FRANK J
		CENTRAL INDEX KEY:			0000918220
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-11625
		FILM NUMBER:		05902341

	BUSINESS ADDRESS:	
		STREET 1:		555 CALIFORNIA STREET, SUITE 2900
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
		BUSINESS PHONE:		4153980800

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFIC CORP
		CENTRAL INDEX KEY:			0000723889
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY APPARATUS & FURNITURE [3821]
		IRS NUMBER:				042793022
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		30 OSSIPEE RD
		STREET 2:		P O BOX 9101
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02464-9101
		BUSINESS PHONE:		6179695452

	MAIL ADDRESS:	
		STREET 1:		30 OSSIPEE ROAD
		STREET 2:		P O BOX 9101
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02164-9101

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MICROFLUIDICS INTERNATIONAL CORP
		DATE OF NAME CHANGE:	19930713

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HUSIC CAPITAL MANAGEMENT
		CENTRAL INDEX KEY:			0000918214
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-11625
		FILM NUMBER:		05902342

	BUSINESS ADDRESS:	
		STREET 1:		555 CALIFORNIA STREET, SUITE 2900
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
		BUSINESS PHONE:		4153980800

	MAIL ADDRESS:	
		STREET 1:		555 CALIFORNIA STREET SUITE 2900
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HUSIC FRANK J & CO
		CENTRAL INDEX KEY:			0000918219
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-11625
		FILM NUMBER:		05902340

	BUSINESS ADDRESS:	
		STREET 1:		555 CALIFORNIA STREET SUITE 2900
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
		BUSINESS PHONE:		4153980800

	MAIL ADDRESS:	
		STREET 1:		555 CALIFORNIA STREET, SUITE 2900
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-06-15</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000723889</issuerCik>
        <issuerName>MFIC CORP</issuerName>
        <issuerTradingSymbol>MFIC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000918214</rptOwnerCik>
            <rptOwnerName>HUSIC CAPITAL MANAGEMENT</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>555 CALIFORNIA STREET SUITE 1800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94104</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000918220</rptOwnerCik>
            <rptOwnerName>HUSIC FRANK J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>555 CALIFORNIA STREET, STE. 1800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94104</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000918219</rptOwnerCik>
            <rptOwnerName>HUSIC FRANK J &amp; CO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>555 CALIFORNIA STREET, SUITE 1800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94104</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>MFIC Corporation</value>
            </securityTitle>
            <transactionDate>
                <value>2005-06-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>42100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.45</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>338990</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By private investment funds</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">By private investment funds for which Husic Capital Management, Frank J. Husic &amp; Co., and/or Frank J. Husic serve as the general partner and/or investment adviser.  The reporting persons disclaim any beneficial interest in the subject security except to the extent of their pecurniary interest.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By:/s/ Lesley Jones, Chief Compliance Officer of Frank J. Husic &amp; Co., general partner of Husic Capital Management</signatureName>
        <signatureDate>2005-06-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By:/s/ Lesley Jones, Chief Compliance Officer of Frank J. Husic &amp; Co.</signatureName>
        <signatureDate>2005-06-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By:/s/ Frank J. Husic</signatureName>
        <signatureDate>2005-06-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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