-----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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 IyLqhK1gX3jfMouUam3bjA==

<SEC-DOCUMENT>0001418028-10-000002.txt : 20100330
<SEC-HEADER>0001418028-10-000002.hdr.sgml : 20100330
<ACCEPTANCE-DATETIME>20100330125219
ACCESSION NUMBER:		0001418028-10-000002
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20100330
DATE AS OF CHANGE:		20100330
EFFECTIVENESS DATE:		20100330

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Zosano Pharma Inc
		CENTRAL INDEX KEY:			0001418028
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-110871
		FILM NUMBER:		10712971

	BUSINESS ADDRESS:	
		STREET 1:		34790 Ardentech Court
		CITY:			Fremont
		STATE:			CA
		ZIP:			94555
		BUSINESS PHONE:		(510) 745-1200

	MAIL ADDRESS:	
		STREET 1:		34790 Ardentech Court
		CITY:			Fremont
		STATE:			CA
		ZIP:			94555
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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        <cik>0001418028</cik>
        <entityName>Zosano Pharma Inc</entityName>
        <issuerAddress>
            <street1>34790 Ardentech Court</street1>
            <city>Fremont</city>
            <stateOrCountry>CA</stateOrCountry>
            <zipCode>94555</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(510) 745-1200</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <previousName>The Macroflux Corporation</previousName>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
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        <entityType>Corporation</entityType>
        <yearOfInc>
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            <value>2006</value>
        </yearOfInc>
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    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gail</firstName>
                <lastName>Schulze</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Zosano Pharma, Inc.</street1>
                <street2>34790 Ardentech Court</street2>
                <city>Fremont</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94555</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>M.</firstName>
                <middleName>James</middleName>
                <lastName>Barrett, Ph.D.</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>New Enterprise Associates</street1>
                <street2>1119 St. Paul Street</street2>
                <city>Baltimore</city>
                <stateOrCountry>MD</stateOrCountry>
                <zipCode>21202</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
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                <lastName>Brown, Ph.D.</lastName>
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                <street2>34790 Ardentech Court</street2>
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                <firstName>Peter</firstName>
                <lastName>Daddona, Ph.D.</lastName>
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            <relatedPersonAddress>
                <street1>Zosano Pharma, Inc.</street1>
                <street2>34790 Ardentech Court</street2>
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                <zipCode>94555</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Kim</firstName>
                <lastName>Gaumer</lastName>
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            <relatedPersonAddress>
                <street1>Zosano Pharma, Inc.</street1>
                <street2>34790 Ardentech Court</street2>
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                <zipCode>94555</zipCode>
            </relatedPersonAddress>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>David</firstName>
                <middleName>M.</middleName>
                <lastName>Mott</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>New Enterprise Associates</street1>
                <street2>1119 St. Paul Street</street2>
                <city>Baltimore</city>
                <stateOrCountry>MD</stateOrCountry>
                <zipCode>21202</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <middleName>P.</middleName>
                <lastName>Richard</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Nomura Phase4 Ventures</street1>
                <street2>1 St. Martins-le-Grand</street2>
                <city>London</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>EC1A 4NP</zipCode>
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            <relatedPersonRelationshipList>
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            <relatedPersonName>
                <firstName>Jee</firstName>
                <middleName>Y.</middleName>
                <lastName>Shin</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>ProQuest Investments</street1>
                <street2>90 Nassau Street, Fifth Floor</street2>
                <city>Princeton</city>
                <stateOrCountry>NJ</stateOrCountry>
                <zipCode>08542</zipCode>
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                <firstName>Thorsten</firstName>
                <lastName>von Stein, M.D., Ph.D.</lastName>
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                <street1>Zosano Pharma, Inc.</street1>
                <street2>34790 Ardentech Court</street2>
                <city>Fremont</city>
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                <zipCode>94555</zipCode>
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                <firstName>John</firstName>
                <middleName>M.</middleName>
                <lastName>Vuko</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Zosano Pharma, Inc.</street1>
                <street2>34790 Ardentech Court</street2>
                <city>Fremont</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94555</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
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    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pharmaceuticals</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-06-18</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
            <isSecurityToBeAcquiredType>true</isSecurityToBeAcquiredType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>N/A</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>N/A</street1>
                    <street2>N/A</street2>
                    <city>N/A</city>
                    <stateOrCountry>XX</stateOrCountry>
                    <zipCode>00000</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>MD</state>
                    <state>NJ</state>
                </statesOfSolicitationList>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>39009000</totalOfferingAmount>
            <totalAmountSold>39009000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>6</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Zosano Pharma Inc</issuerName>
                <signatureName>/s/ John M. Vuko</signatureName>
                <nameOfSigner>John M. Vuko</nameOfSigner>
                <signatureTitle>EVP, CFO</signatureTitle>
                <signatureDate>2010-03-29</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
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</TEXT>
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-----END PRIVACY-ENHANCED MESSAGE-----