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    <schemaVersion>X0704</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001455365</cik>
        <entityName>COGNITION THERAPEUTICS INC</entityName>
        <issuerAddress>
            <street1>2403 SIDNEY STREET</street1>
            <street2>SUITE 261</street2>
            <city>PITTSBURGH</city>
            <stateOrCountry>PA</stateOrCountry>
            <stateOrCountryDescription>PENNSYLVANIA</stateOrCountryDescription>
            <zipCode>15203</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>412-770-1621</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>COGNITION THERAPUTICS INC</previousName>
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        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2007</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
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            <relatedPersonName>
                <firstName>Susan</firstName>
                <lastName>Catalano</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Cognition Therapeutics, Inc.</street1>
                <street2>2403 Sidney Street, Suite 261</street2>
                <city>Pittsburgh</city>
                <stateOrCountry>PA</stateOrCountry>
                <stateOrCountryDescription>PENNSYLVANIA</stateOrCountryDescription>
                <zipCode>15203</zipCode>
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                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Harold</firstName>
                <middleName>T.</middleName>
                <lastName>Safferstein</lastName>
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                <street1>c/o Cognition Therapeutics, Inc.</street1>
                <street2>2403 Sidney Street, Suite 261</street2>
                <city>Pittsburgh</city>
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                <stateOrCountryDescription>PENNSYLVANIA</stateOrCountryDescription>
                <zipCode>15203</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Robert</firstName>
                <lastName>Gailus</lastName>
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            <relatedPersonAddress>
                <street1>c/o Ogden CAP Associates, LLC</street1>
                <street2>309 Park Avenue</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Franz</firstName>
                <lastName>Hefti</lastName>
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                <lastName>Jain</lastName>
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                <street2>2403 Sidney Street, Suite 261</street2>
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                <stateOrCountryDescription>PENNSYLVANIA</stateOrCountryDescription>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Mark</firstName>
                <lastName>Breedlove</lastName>
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            <relatedPersonAddress>
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                <street2>2403 Sidney Street, Suite 261</street2>
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                <stateOrCountryDescription>PENNSYLVANIA</stateOrCountryDescription>
                <zipCode>15203</zipCode>
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            <relatedPersonRelationshipList>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Biotechnology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2011-12-05</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>10000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>3000000</totalOfferingAmount>
            <totalAmountSold>1823845</totalAmountSold>
            <totalRemaining>1176155</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>16</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
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            <clarificationOfResponse></clarificationOfResponse>
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        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>300000</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>COGNITION THERAPEUTICS INC</issuerName>
                <signatureName>/s/ Harold T. Safferstein</signatureName>
                <nameOfSigner>Harold T. Safferstein</nameOfSigner>
                <signatureTitle>President and Chief Executive Officer</signatureTitle>
                <signatureDate>2011-12-06</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
