-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 /dLiFwu9H7OVpUQHJgYYzg==

<SEC-DOCUMENT>0001435049-09-000003.txt : 20091117
<SEC-HEADER>0001435049-09-000003.hdr.sgml : 20091117
<ACCEPTANCE-DATETIME>20091117122824
ACCESSION NUMBER:		0001435049-09-000003
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20091117
DATE AS OF CHANGE:		20091117
EFFECTIVENESS DATE:		20091117

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADURO BIOTECH
		CENTRAL INDEX KEY:			0001435049
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			CA

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-118099
		FILM NUMBER:		091189689

	BUSINESS ADDRESS:	
		STREET 1:		626 BANCROFT WAY
		STREET 2:		SUITE 3-C
		CITY:			BERKELEY
		STATE:			CA
		ZIP:			94710
		BUSINESS PHONE:		510-848-4400

	MAIL ADDRESS:	
		STREET 1:		626 BANCROFT WAY
		STREET 2:		SUITE 3-C
		CITY:			BERKELEY
		STATE:			CA
		ZIP:			94710
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001435049</cik>
        <entityName>ADURO BIOTECH</entityName>
        <issuerAddress>
            <street1>626 BANCROFT WAY</street1>
            <street2>SUITE 3-C</street2>
            <city>BERKELEY</city>
            <stateOrCountry>CA</stateOrCountry>
            <zipCode>94710</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>510-848-4400</issuerPhoneNumber>
        <jurisdictionOfInc>CALIFORNIA</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Stephen</firstName>
                <middleName>T.</middleName>
                <lastName>Isaacs</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>626 Bancroft Way</street1>
                <street2>Suite 3-C</street2>
                <city>Berkeley</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94710</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>S.</firstName>
                <middleName>David</middleName>
                <lastName>Model</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>200 Turnpike Road</street1>
                <city>Chelmsford</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01824</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>David</firstName>
                <lastName>Fischell</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>71 Riverlawn Drive</street1>
                <city>Fair Haven</city>
                <stateOrCountry>NJ</stateOrCountry>
                <zipCode>07704</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>William</firstName>
                <middleName>E.</middleName>
                <lastName>Gibson</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Leslie O'Neil, CR Ventures, LLC</street1>
                <street2>3053 Fillmore Street, #249</street2>
                <city>San Francisco</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94123</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ross</firstName>
                <lastName>Haghighat</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>200 Turnpike Road</street1>
                <city>Chelmsford</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>01824</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Rudy</firstName>
                <lastName>Mazzocchi</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3651 FAU Blvd.</street1>
                <street2>Suite 300</street2>
                <city>Boca Raton</city>
                <stateOrCountry>FL</stateOrCountry>
                <zipCode>33431</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Christopher</firstName>
                <middleName>D.</middleName>
                <lastName>Ray</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>7051 Teakwood Drive</street1>
                <city>Dallas</city>
                <stateOrCountry>TX</stateOrCountry>
                <zipCode>75240</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Dale</firstName>
                <middleName>H.</middleName>
                <lastName>Stevens</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Grassword Partners, Inc.</street1>
                <street2>6925 Grasswood Avenue</street2>
                <city>Malibu</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>90265</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <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>2009-11-03</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>25000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>1175000</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>9</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse>Proceeds will be used for general corporate purposes.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>ADURO BIOTECH</issuerName>
                <signatureName>/s/ S. David Model</signatureName>
                <nameOfSigner>S. David Model</nameOfSigner>
                <signatureTitle>Acting, CFO and Secretary</signatureTitle>
                <signatureDate>2009-11-16</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----