-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 HzaFXh5LpwJI0y0whNThhlIQggW+WYS80D6kcR8Jd6+Im678PHMCyCsrt1RXmXEg
 +0FDm4DVyEisDIvenFXYNQ==

<SEC-DOCUMENT>0000885721-04-000171.txt : 20040809
<SEC-HEADER>0000885721-04-000171.hdr.sgml : 20040809
<ACCEPTANCE-DATETIME>20040809164547
ACCESSION NUMBER:		0000885721-04-000171
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040728
FILED AS OF DATE:		20040809

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Breen Maura C
		CENTRAL INDEX KEY:			0001300108

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20199
		FILM NUMBER:		04961896

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		212-395-1169

	MAIL ADDRESS:	
		STREET 1:		1095 AVENUE OF THE AMERICAS, ROOM 4053
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EXPRESS SCRIPTS INC
		CENTRAL INDEX KEY:			0000885721
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-DRUG STORES AND PROPRIETARY STORES [5912]
		IRS NUMBER:				431420563
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1202

	BUSINESS ADDRESS:	
		STREET 1:		13900 REIVERPORT DRIVE
		CITY:			MARYLAND HEIGHTS
		STATE:			MO
		ZIP:			63043
		BUSINESS PHONE:		3147701666

	MAIL ADDRESS:	
		STREET 1:		13900 REIVERPORT DRIVE
		CITY:			MARYLAND HEIGHTS
		STATE:			MO
		ZIP:			63043
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>breen_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2004-07-28</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000885721</issuerCik>
        <issuerName>EXPRESS SCRIPTS INC</issuerName>
        <issuerTradingSymbol>ESRX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001300108</rptOwnerCik>
            <rptOwnerName>Breen Maura C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O EXPRESS SCRIPTS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>13900 RIVERPORT DRIVE</rptOwnerStreet2>
            <rptOwnerCity>MARYLAND HEIGHTS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63043</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>Maura C. Breen</signatureName>
        <signatureDate>2004-08-05</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----