-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 UsUmnwSPY95CTD3mdyPnF5NGoGn3dP1Fj9myORljO1A+VKRtmKCZ9Ks1Io1mM0lc
 OpmZFJSCPIiESH5vXUGmmg==

<SEC-DOCUMENT>0001209191-05-046910.txt : 20050912
<SEC-HEADER>0001209191-05-046910.hdr.sgml : 20050912
<ACCEPTANCE-DATETIME>20050912195043
ACCESSION NUMBER:		0001209191-05-046910
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050907
FILED AS OF DATE:		20050912
DATE AS OF CHANGE:		20050912

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WHEELER KURT
		CENTRAL INDEX KEY:			0001252525

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50461
		FILM NUMBER:		051080922

	MAIL ADDRESS:	
		STREET 1:		601 GATEWAY BLVD
		STREET 2:		STE 350
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94080

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIMON NICHOLAS J III
		CENTRAL INDEX KEY:			0001221595

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50461
		FILM NUMBER:		051080919

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		6174259200

	MAIL ADDRESS:	
		STREET 1:		C/O MPM ASSET MANAGEMENT
		STREET 2:		111 HUNTINGTON AVENUE, 31ST FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GALAKATOS NICHOLAS
		CENTRAL INDEX KEY:			0001252522

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50461
		FILM NUMBER:		051080923

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		6174259200

	MAIL ADDRESS:	
		STREET 1:		111 HUNTINGTON AVE 31ST FL
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STEINMETZ MICHAEL
		CENTRAL INDEX KEY:			0001166285

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50461
		FILM NUMBER:		051080921

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		6174259200

	MAIL ADDRESS:	
		STREET 1:		C/O MPM ASSET MANAGEMENT
		STREET 2:		111 HUNTINGTON AVE., 31ST FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TERCICA INC
		CENTRAL INDEX KEY:			0001262175
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				260042539
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2000 SIERRA POINT PARKWAY
		STREET 2:		SUITE 400
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005
		BUSINESS PHONE:		6506244900

	MAIL ADDRESS:	
		STREET 1:		2000 SIERRA POINT PARKWAY
		STREET 2:		SUITE 400
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GADICKE ANSBERT
		CENTRAL INDEX KEY:			0001134655

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50461
		FILM NUMBER:		051080920

	BUSINESS ADDRESS:	
		STREET 1:		ONE CAMBRIDGE CENTER
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		6174259200

	MAIL ADDRESS:	
		STREET 1:		C/O MPM ASSET MANAGEMENT
		STREET 2:		111 HUNTINGTON AVE., 31ST FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EVNIN LUKE
		CENTRAL INDEX KEY:			0001134657

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50461
		FILM NUMBER:		051080924

	BUSINESS ADDRESS:	
		STREET 1:		ONE CAMBRIDGE CENTER
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		6174259200

	MAIL ADDRESS:	
		STREET 1:		C/O MPM ASSET MANAGEMENT
		STREET 2:		111 HUNTINGTON AVE., 31ST FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bsf12386_7ns.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-07</periodOfReport>

    <issuer>
        <issuerCik>0001262175</issuerCik>
        <issuerName>TERCICA INC</issuerName>
        <issuerTradingSymbol>TRCA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001134657</rptOwnerCik>
            <rptOwnerName>EVNIN LUKE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MPM ASSET MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>111 HUNTINGTON AVE., 31ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02199</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001252522</rptOwnerCik>
            <rptOwnerName>GALAKATOS NICHOLAS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MPM ASSET MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>111 HUNTINGTON AVE., 31ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02199</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001252525</rptOwnerCik>
            <rptOwnerName>WHEELER KURT</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MPM ASSET MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>111 HUNTINGTON AVE., 31ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02199</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001166285</rptOwnerCik>
            <rptOwnerName>STEINMETZ MICHAEL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MPM ASSET MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>111 HUNTINGTON AVE., 31ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02199</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001134655</rptOwnerCik>
            <rptOwnerName>GADICKE ANSBERT</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MPM ASSET MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>111 HUNTINGTON AVE., 31ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02199</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001221595</rptOwnerCik>
            <rptOwnerName>SIMON NICHOLAS J III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MPM ASSET MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>111 HUNTINGTON AVE., 31ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02199</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-09-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8400</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>12.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6861268</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The shares were sold as follows:  6,990 by MPM BioVentures III-QP, LP (&quot;BVQP&quot;), 470 by MPM BioVentures III, LP (&quot;BVLP&quot;), 211 by MPM BioVentures III Parallel Fund, LP (&quot;BVPF&quot;), 591 by MPM BioVentures III GmbH &amp; Co. Beteiligungs KG (&quot;BVKG&quot;) and 138 by MPM Asset Management Investors 2002 BVIII LLC (&quot;BVAM&quot;).  MPM BioVentures III GP, LP (&quot;BVGP&quot;) and MPM BioVentures III LLC (&quot;BVLLC&quot;) are the indirect and direct general partners of BVQP, BVLP, BVPF and BVKG.  Luke Evnin (&quot;LE&quot;), Ansbert Gadicke (&quot;AG&quot;), Nicholas Galakatos (&quot;NG&quot;), Dennis Henner (&quot;DH&quot;), Nicholas Simon III (&quot;NS&quot;), Michael Steinmetz (&quot;MS&quot;) and Kurt Wheeler (&quot;KW&quot;) are the members of BVLLC.  LE, AG, NG, DH, NS, MS and KW are members of BVAM.</footnote>
        <footnote id="F2">The shares are held as follows:  5,707,936 by BVQP, 383,776 by BVLP, 172,441 by BVPF, 482,343 by BVKG, 112,772 by BVAM  and 2,000 by KW.  Each member of the group disclaims beneficial ownership of the securities except to the extent of its pecuniary interest therein.</footnote>
    </footnotes>

    <remarks>See Form 4 for MPM BioVentures III LLC for additional members of this joint filing.</remarks>

    <ownerSignature>
        <signatureName>/s/ Luke Evnin</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Nicholas Galakatos</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kurt Wheeler</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Michael Steinmetz</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ansbert Gadicke</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Nicholas Simon III</signatureName>
        <signatureDate>2005-09-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
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-----END PRIVACY-ENHANCED MESSAGE-----