-----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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 z/rGtE2tJ9mJjmYC9QgsqQ==

<SEC-DOCUMENT>0001178038-09-000005.txt : 20090924
<SEC-HEADER>0001178038-09-000005.hdr.sgml : 20090924
<ACCEPTANCE-DATETIME>20090924152149
ACCESSION NUMBER:		0001178038-09-000005
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20090924
DATE AS OF CHANGE:		20090924
EFFECTIVENESS DATE:		20090924

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BAROSENSE INC
		CENTRAL INDEX KEY:			0001178038
		IRS NUMBER:				300059970
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-45588
		FILM NUMBER:		091084850

	BUSINESS ADDRESS:	
		STREET 1:		3698-C HAVEN AVENUE
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94063
		BUSINESS PHONE:		650-362-6000

	MAIL ADDRESS:	
		STREET 1:		3698-C HAVEN AVENUE
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94063
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0502</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001178038</cik>
        <entityName>BAROSENSE INC</entityName>
        <issuerAddress>
            <street1>3698-C HAVEN AVENUE</street1>
            <street2></street2>
            <city>REDWOOD CITY</city>
            <stateOrCountry>CA</stateOrCountry>
            <zipCode>94063</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>650-362-6000</issuerPhoneNumber>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Daniel</firstName>
                <middleName>J.</middleName>
                <lastName>Balbierz</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3698-C Haven Avenue</street1>
                <street2></street2>
                <city>Redwood City</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94063</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gregory</firstName>
                <middleName>A.</middleName>
                <lastName>Barrett</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>540 Oakmead Parkway</street1>
                <street2></street2>
                <city>Sunnyvale</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94085</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Alan</firstName>
                <middleName></middleName>
                <lastName>Levy</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>601 Union Street, Suite 3200</street1>
                <street2></street2>
                <city>Seattle</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98101</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Eric</firstName>
                <middleName></middleName>
                <lastName>Linsley</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>P.O. Box 110287</street1>
                <street2></street2>
                <city>Research Triangle Park</city>
                <stateOrCountry>NC</stateOrCountry>
                <zipCode>27709</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <middleName></middleName>
                <lastName>Onopchenko</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3284 Alpine Road</street1>
                <street2></street2>
                <city>Portola Valley</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94028</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <middleName></middleName>
                <lastName>Stack</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3284 Alpine Road</street1>
                <street2></street2>
                <city>Portola Valley</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94028</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>true</isAmendment>
                <previousAccessionNumber>0001178038-09-000003</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-08-13</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>BIO-IB Capital Partners, LLC</recipientName>
                <recipientCRDNumber>145134</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>800 Third Street</street1>
                    <street2>4th Floor</street2>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <zipCode>10022</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>IL</state>
                    <state>MA</state>
                    <state>NC</state>
                </statesOfSolicitationList>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>30552784</totalOfferingAmount>
            <totalAmountSold>29485394</totalAmountSold>
            <totalRemaining>1067390</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>31</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>285000</dollarAmount>
                <isEstimate>true</isEstimate>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>BAROSENSE INC</issuerName>
                <signatureName>/s/DANIEL J. BALBIERZ</signatureName>
                <nameOfSigner>Daniel J. Balbierz</nameOfSigner>
                <signatureTitle>Chief Executive Officer</signatureTitle>
                <signatureDate>2009-09-24</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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