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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,
 K94QsEVuaO9bp6B0nBm6wHu87/zIeVTkdOtGGerj/Drwn3zTa8jBnqntYEbxSm5s
 uOc/Hz5gkt/P3iEot7wZKw==

<SEC-DOCUMENT>0001209191-03-018826.txt : 20030825
<SEC-HEADER>0001209191-03-018826.hdr.sgml : 20030825
<ACCEPTANCE-DATETIME>20030825163419
ACCESSION NUMBER:		0001209191-03-018826
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030821
FILED AS OF DATE:		20030825

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MAGUIRE JOHN M
		CENTRAL INDEX KEY:			0001244661

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19253
		FILM NUMBER:		03864674

	BUSINESS ADDRESS:	
		STREET 1:		PANERA BREAD INC
		STREET 2:		6710 CLAYTON RD
		CITY:			RICHMOND HEIGHTS
		STATE:			MO
		ZIP:			63117

	MAIL ADDRESS:	
		STREET 1:		CHARLES RIVER PL
		STREET 2:		63 KENDRICK ST 2ND FL
		CITY:			NEEDHAM
		STATE:			MA
		ZIP:			02494

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PANERA BREAD CO
		CENTRAL INDEX KEY:			0000724606
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-EATING PLACES [5812]
		IRS NUMBER:				042723701
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1226

	BUSINESS ADDRESS:	
		STREET 1:		19 FID KENNEDY AVE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		6174232100

	MAIL ADDRESS:	
		STREET 1:		19 FID KENNEDY AVE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AU BON PAIN CO INC
		DATE OF NAME CHANGE:	19940201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AU BON PAIN COMPANY INC
		DATE OF NAME CHANGE:	19920501
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-21</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000724606</issuerCik><issuerName>PANERA BREAD CO</issuerName>        <issuerTradingSymbol>PNRA</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001244661</rptOwnerCik><rptOwnerName>MAGUIRE JOHN M</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>CHARLES RIVER PLACE</rptOwnerStreet1><rptOwnerStreet2>63 KENDRICK STREET, 2ND FLOOR</rptOwnerStreet2><rptOwnerCity>NEEDHAM</rptOwnerCity><rptOwnerState>MA</rptOwnerState><rptOwnerZipCode>02494</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>SVP, Chief Co/JV Ops Officer</officerTitle></reportingOwnerRelati
onship></reportingOwner><nonDerivativeTable><nonDerivativeHolding><securityTitle><value>Class A Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>878.1778</value><footnoteId id="F1" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>43.15</value></conversionOrExercisePrice><transactionDate><value>2003-08-21</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>10000</valu
e></transactionShares><transactionPricePerShare><value>43.15</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F2" /></exerciseDate><expirationDate><value>2009-08-21</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>5000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>10000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Shares held in 401k plan, acquired pursuant to periodic transactions.</footnote><footnote id="F2">The options granted will vest at a rate of 25% per year, beginning on 8/21/2005, becoming fully vested on
 8/21/2008.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ John Maguire</signatureName><signatureDate>2003-08-25</signatureDate></ownerSignature></ownershipDocument>

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