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    <schemaVersion>X0707</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001678178</cik>
        <entityName>ACON SEQUITUR INVESTORS II, LLC</entityName>
        <issuerAddress>
            <street1>1133 CONNECTICUT AVENUE, NW, SUITE 700</street1>
            <city>WASHINGTON</city>
            <stateOrCountry>DC</stateOrCountry>
            <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
            <zipCode>20036</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>202-454-1100</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Liability Company</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2016</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>NOT APPLICABLE</firstName>
                <lastName>ACON SEQUITUR MANAGER, LLC</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1133 CONNECTICUT AVENUE, NW, SUITE 700</street1>
                <city>WASHINGTON</city>
                <stateOrCountry>DC</stateOrCountry>
                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>20036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Managing Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>BARRY</firstName>
                <lastName>JOHNSON</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1133 CONNECTICUT AVENUE, NW, SUITE 700</street1>
                <city>WASHINGTON</city>
                <stateOrCountry>DC</stateOrCountry>
                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>20036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Treasurer and Assistant Secretary of the Managing Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>TERESA</firstName>
                <lastName>BERNSTEIN</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1133 CONNECTICUT AVENUE, NW, SUITE 700</street1>
                <city>WASHINGTON</city>
                <stateOrCountry>DC</stateOrCountry>
                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>20036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Secretary and Assistant Treasurer of the Managing Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>BERNARD</firstName>
                <lastName>ARONSON</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1133 CONNECTICUT AVENUE, NW, SUITE 700</street1>
                <city>WASHINGTON</city>
                <stateOrCountry>DC</stateOrCountry>
                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>80036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Managing Director of the Managing Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>ANDRE</firstName>
                <lastName>BHATIA</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
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                <city>WASHINGTON</city>
                <stateOrCountry>DC</stateOrCountry>
                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>80036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Managing Director of the Managing Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>KENNETH</firstName>
                <lastName>BROTMAN</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1133 CONNECTICUT AVENUE, NW, SUITE 700</street1>
                <city>WASHINGTON</city>
                <stateOrCountry>DC</stateOrCountry>
                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>20036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Managing Director of the Managing Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>JONATHAN</firstName>
                <lastName>GINNS</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1133 CONNECTICUT AVENUE, NW, SUITE 700</street1>
                <city>WASHINGTON</city>
                <stateOrCountry>DC</stateOrCountry>
                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>20036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Managing Director of the Managing Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>DANIEL</firstName>
                <lastName>JINICH</lastName>
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            <relatedPersonAddress>
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                <city>WASHINGTON</city>
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                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>20036</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Managing Director of the Managing Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>ARON</firstName>
                <lastName>SCHWARTZ</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1133 CONNECTICUT AVENUE, NW, SUITE 700</street1>
                <city>WASHINGTON</city>
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                <stateOrCountryDescription>DISTRICT OF COLUMBIA</stateOrCountryDescription>
                <zipCode>20036</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Managing Director of the Managing Member</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2016-06-16</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>133314439</totalOfferingAmount>
            <totalAmountSold>133314439</totalAmountSold>
            <totalRemaining>0</totalRemaining>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>12</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>ACON SEQUITUR INVESTORS II, LLC</issuerName>
                <signatureName>/s/ Teresa Y. Bernstein</signatureName>
                <nameOfSigner>Teresa Y. Bernstein</nameOfSigner>
                <signatureTitle>Secretary and Assistant Treasurer of the Managing Member</signatureTitle>
                <signatureDate>2016-06-30</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
