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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>0001305773-09-000005.txt : 20091229
<SEC-HEADER>0001305773-09-000005.hdr.sgml : 20091229
<ACCEPTANCE-DATETIME>20091229131900
ACCESSION NUMBER:		0001305773-09-000005
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20091229
DATE AS OF CHANGE:		20091229
EFFECTIVENESS DATE:		20091229

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ConforMIS Inc
		CENTRAL INDEX KEY:			0001305773
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-70092
		FILM NUMBER:		091263438

	BUSINESS ADDRESS:	
		STREET 1:		2 FOURTH AVE
		CITY:			BURLINGTON
		STATE:			MA
		ZIP:			01803
		BUSINESS PHONE:		(781) 345-9001

	MAIL ADDRESS:	
		STREET 1:		2 FOURTH AVE
		CITY:			BURLINGTON
		STATE:			MA
		ZIP:			01803
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001305773</cik>
        <entityName>ConforMIS Inc</entityName>
        <issuerAddress>
            <street1>2 FOURTH AVE</street1>
            <city>BURLINGTON</city>
            <stateOrCountry>MA</stateOrCountry>
            <zipCode>01803</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(781) 345-9001</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Philipp</firstName>
                <lastName>Lang</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2 FOURTH AVE</street1>
                <city>BURLINGTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01803</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Phil</firstName>
                <lastName>Licari</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2 FOURTH AVE</street1>
                <city>BURLINGTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01803</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Judy</firstName>
                <lastName>Huber</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2 FOURTH AVE</street1>
                <city>BURLINGTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01803</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ken</firstName>
                <lastName>Fallon</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2 FOURTH AVE</street1>
                <city>BURLINGTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01803</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Anselm</firstName>
                <lastName>Leung</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2 FOURTH AVE</street1>
                <city>BURLINGTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01803</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Brad</firstName>
                <lastName>Langdale</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2 FOURTH AVE</street1>
                <city>BURLINGTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01803</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Frank</firstName>
                <lastName>Muhlenbeck</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2 FOURTH AVE</street1>
                <city>BURLINGTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01803</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other Health Care</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001305773-09-000004</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2008-06-18</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
            <isSecurityToBeAcquiredType>true</isSecurityToBeAcquiredType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>90000000</totalOfferingAmount>
            <totalAmountSold>51168270</totalAmountSold>
            <totalRemaining>38831730</totalRemaining>
            <clarificationOfResponse>Series D Preferred Stock, Warrants to Purchase Series D Preferred Stock, Series D Preferred Stock issuable upon exercise of Warrants and Common Stock issuable upon conversion of the Series D Preferred Stock.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>40</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse>Funds to be used as working capital.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>ConforMIS Inc</issuerName>
                <signatureName>George Colindres</signatureName>
                <nameOfSigner>George Colindres</nameOfSigner>
                <signatureTitle>Assistant Secretary</signatureTitle>
                <signatureDate>2009-12-29</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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