<SEC-DOCUMENT>0001145986-11-000003.txt : 20111221
<SEC-HEADER>0001145986-11-000003.hdr.sgml : 20111221
<ACCEPTANCE-DATETIME>20111221124350
ACCESSION NUMBER:		0001145986-11-000003
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20111221
DATE AS OF CHANGE:		20111221
EFFECTIVENESS DATE:		20111221

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASPEN AEROGELS INC
		CENTRAL INDEX KEY:			0001145986
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-LUMBER & OTHER CONSTRUCTION MATERIALS [5030]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-170463
		FILM NUMBER:		111273925

	BUSINESS ADDRESS:	
		STREET 1:		30 FORBES ROAD
		STREET 2:		BUILDING B
		CITY:			NORTHBOROUGH
		STATE:			MA
		ZIP:			01532
		BUSINESS PHONE:		5086911150

	MAIL ADDRESS:	
		STREET 1:		30 FORBES ROAD
		STREET 2:		BUILDING B
		CITY:			NORTHBOROUGH
		STATE:			MA
		ZIP:			01532
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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        <cik>0001145986</cik>
        <entityName>ASPEN AEROGELS INC</entityName>
        <issuerAddress>
            <street1>30 FORBES ROAD, BUILDING B</street1>
            <city>NORTHBOROUGH</city>
            <stateOrCountry>MA</stateOrCountry>
            <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
            <zipCode>01532</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>508-691-1111</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
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        <edgarPreviousNameList>
            <value>None</value>
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        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2008</value>
        </yearOfInc>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Donald</firstName>
                <middleName>R.</middleName>
                <lastName>Young</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
                <city>Northborough</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <middleName>F.</middleName>
                <lastName>Fairbanks</lastName>
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                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
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                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
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                <firstName>David</firstName>
                <middleName>J.</middleName>
                <lastName>Prend</lastName>
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                <firstName>Robert</firstName>
                <middleName>M.</middleName>
                <lastName>Gervis</lastName>
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            <relatedPersonAddress>
                <street1>c/o Aspen Aerogels, Inc.</street1>
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                <firstName>Ramsay</firstName>
                <lastName>Battin</lastName>
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                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Steven</firstName>
                <middleName>R.</middleName>
                <lastName>Mitchell</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
                <city>Northborough</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Mark</firstName>
                <middleName>L.</middleName>
                <lastName>Noetzel</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
                <city>Northborough</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <middleName>F.</middleName>
                <lastName>Reilly</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
                <city>Northborough</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Craig</firstName>
                <middleName>A.</middleName>
                <lastName>Huff</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
                <city>Northborough</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>William</firstName>
                <middleName>P.</middleName>
                <lastName>Noglows</lastName>
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                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
                <city>Northborough</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>George</firstName>
                <middleName>L.</middleName>
                <lastName>Gould</lastName>
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            <relatedPersonAddress>
                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
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                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Christopher</firstName>
                <middleName>L.</middleName>
                <lastName>Marlette</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Aspen Aerogels, Inc.</street1>
                <street2>30 Forbes Road, Building B</street2>
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                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>01532</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Kevin</firstName>
                <middleName>A.</middleName>
                <lastName>Schmidt</lastName>
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            <relatedPersonAddress>
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                <zipCode>01532</zipCode>
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            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Harry</firstName>
                <middleName>R.</middleName>
                <lastName>Walkoff</lastName>
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            <relatedPersonAddress>
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            </relatedPersonRelationshipList>
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    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other Technology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2011-12-06</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>25000000</totalOfferingAmount>
            <totalAmountSold>15000000</totalAmountSold>
            <totalRemaining>10000000</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>17</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
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        <useOfProceeds>
            <grossProceedsUsed>
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        <signatureBlock>
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                <issuerName>ASPEN AEROGELS INC</issuerName>
                <signatureName>/s/ Donald R. Young</signatureName>
                <nameOfSigner>Donald R. Young</nameOfSigner>
                <signatureTitle>President and Chief Executive Officer</signatureTitle>
                <signatureDate>2011-12-21</signatureDate>
            </signature>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
