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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,
 CtiGYJRVi17qEWT1gziVbe188Of+MTc2pODMu3mpCanxNAiEK2lsDHFzQdMk7YlF
 uWOIm4Im4E8m3K225NWUDw==

<SEC-DOCUMENT>0001209191-04-004414.txt : 20040123
<SEC-HEADER>0001209191-04-004414.hdr.sgml : 20040123
<ACCEPTANCE-DATETIME>20040123143734
ACCESSION NUMBER:		0001209191-04-004414
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040121
FILED AS OF DATE:		20040123

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:			1227

	BUSINESS ADDRESS:	
		STREET 1:		6710 CLAYTON RD
		CITY:			RICHMOND HEIGHTS
		STATE:			MO
		ZIP:			63117
		BUSINESS PHONE:		3146337100

	MAIL ADDRESS:	
		STREET 1:		6710 CLAYTON RD
		CITY:			RICHMOND HEIGHTS
		STATE:			MO
		ZIP:			63117

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SHAICH RONALD M
		CENTRAL INDEX KEY:			0001034193

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19253
		FILM NUMBER:		04540243

	BUSINESS ADDRESS:	
		STREET 1:		6710 CLAYTON ROAD
		CITY:			RICHMOND HEIGHTS
		STATE:			MO
		ZIP:			63117
		BUSINESS PHONE:		3146337150

	MAIL ADDRESS:	
		STREET 1:		C/O AU BON PAIN CO INC
		STREET 2:		19 FID KENNEDY AVE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER NAME:	
		FORMER CONFORMED NAME:	SCHAICH RONALD M
		DATE OF NAME CHANGE:	19970219
</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>2004-01-21</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000724606</issuerCik><issuerName>PANERA BREAD CO</issuerName>        <issuerTradingSymbol>PNRA</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001034193</rptOwnerCik><rptOwnerName>SHAICH RONALD M</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>6710 CLAYTON ROAD</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>RICHMOND HEIGHTS</rptOwnerCity><rptOwnerState>MO</rptOwnerState><rptOwnerZipCode>63117</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>1</isTenPercentOwner><isOther>0</isOther><officerTitle>Chairman &amp; CEO</officerTitle></reportingOwnerRelationship></reportingOwner><nonDer
ivativeTable><nonDerivativeTransaction><securityTitle><value>Class A Common Stock</value></securityTitle><transactionDate><value>2004-01-21</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>28000.0000</value></transactionShares><transactionPricePerShare><footnoteId id="F1" /></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>263000.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Class 
A Common Stock</value></securityTitle><transactionDate><value>2004-01-21</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>28000.0000</value></transactionShares><transactionPricePerShare><value>42.5963</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>235000.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Class A Common Stock</value></securityTitle><transactionDate><value>2004-
01-21</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>22000.0000</value></transactionShares><transactionPricePerShare><value>3.7500</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>257000.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Class A Common Stock</value></securityTitle><transactionDate><value>2004-01-21</value></transactionDate><deemedExecutionDate></deemedExecutio
nDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>22000.0000</value></transactionShares><transactionPricePerShare><value>42.5963</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>235000.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>Class A Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>13000.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrI
ndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Shaich Family Foundation</value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Class B Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1627980.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Class B Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>73401.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Children's GRAT</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeT
ransaction><securityTitle><value>Class B Common Stock</value></securityTitle><conversionOrExercisePrice><footnoteId id="F1" /></conversionOrExercisePrice><transactionDate><value>2004-01-21</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>C</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>28000.0000</value></transactionShares><transactionPricePerShare><footnoteId id="F1" /></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F2" /></exerciseDate><expirationDate><footnoteId id="F2" /></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class B Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>28000.0000</value></underlyingSecur
ityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1627980.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction><derivativeTransaction><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>3.7500</value></conversionOrExercisePrice><transactionDate><value>2004-01-21</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>C</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>22000.0000</value></transactionShares><transactionPricePerShare><value>3.7500</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></tra
nsactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>1999-05-16</value></exerciseDate><expirationDate><value>2007-06-12</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>22000.0000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>333660.0000</value><footnoteId id="F3" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">The shares were converted on a 1-for-1 basis from Class B. Class B shares have no market value, and must be converted to Class A shares prior to sale.</footnote><footnote id="F2">Class B shares are immediately available for sale, and have no expiration date.</footnote><footnote id="F3">After this reported transact
ion, the reporting person holds 373,660 shares, 333,660 of which are fully exercisable and 40,000 which will become fully vested as of 1/17/2007.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/Ronald M. Shaich</signatureName><signatureDate>2004-01-23</signatureDate></ownerSignature></ownershipDocument>

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