-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 AWWmVMq8wQsfetTPoLAqz8ZhBQYhtoyJ9P2Z66UPUtAu5/HIwF0kpMwNrZ8p3lND
 sEQq9AtrYxb+hkKJdglBzg==

<SEC-DOCUMENT>0001219053-03-000186.txt : 20031031
<SEC-HEADER>0001219053-03-000186.hdr.sgml : 20031031
<ACCEPTANCE-DATETIME>20031031194737
ACCESSION NUMBER:		0001219053-03-000186
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031028
FILED AS OF DATE:		20031031

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PHARSIGHT CORP
		CENTRAL INDEX KEY:			0001040853
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				770401273
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		800 WEST EL CAMINO REAL
		STREET 2:		STE 200
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94040
		BUSINESS PHONE:		6503143800

	MAIL ADDRESS:	
		STREET 1:		800 WEST EL CAMINO REAL
		STREET 2:		STE 200
		CITY:			MOUNTAINVIEW
		STATE:			CA
		ZIP:			94040

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STEPHENS CYNTHIA
		CENTRAL INDEX KEY:			0001218895

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-31253
		FILM NUMBER:		03971240

	BUSINESS ADDRESS:	
		STREET 1:		1800 GREEN HILL RD
		CITY:			SCOTTS VALLEY
		STATE:			CA
		ZIP:			95066
		BUSINESS PHONE:		2314304773

	MAIL ADDRESS:	
		STREET 1:		800 WEST EL CAMINO REAL
		STREET 2:		SUITE 200
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94040
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2003-10-28</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001040853</issuerCik>
        <issuerName>PHARSIGHT CORP</issuerName>
        <issuerTradingSymbol>PHST</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001218895</rptOwnerCik>
            <rptOwnerName>STEPHENS CYNTHIA</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>800 WEST EL CAMINO REAL</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>MOUNTAIN VIEW</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94040</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Interim CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>/s/Cynthia Stephens</signatureName>
        <signatureDate>2003-10-31</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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