<SEC-DOCUMENT>0001562180-21-002860.txt : 20210419
<SEC-HEADER>0001562180-21-002860.hdr.sgml : 20210419
<ACCEPTANCE-DATETIME>20210419164359
ACCESSION NUMBER:		0001562180-21-002860
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210415
FILED AS OF DATE:		20210419
DATE AS OF CHANGE:		20210419

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mengoli Jeff
		CENTRAL INDEX KEY:			0001819282

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39423
		FILM NUMBER:		21835103

	MAIL ADDRESS:	
		STREET 1:		11305 FOUR POINTS DRIVE
		STREET 2:		BUILDING II, THIRD FLOOR
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78726

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BigCommerce Holdings, Inc.
		CENTRAL INDEX KEY:			0001626450
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				462707656
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		11305 FOUR POINTS DR, BLDG 2, 3RD FLOOR
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78726
		BUSINESS PHONE:		1-888-699-8911

	MAIL ADDRESS:	
		STREET 1:		11305 FOUR POINTS DR, BLDG 2, 3RD FLOOR
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78726
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-04-15</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0001626450</issuerCik>
        <issuerName>BigCommerce Holdings, Inc.</issuerName>
        <issuerTradingSymbol>BIGC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001819282</rptOwnerCik>
            <rptOwnerName>Mengoli Jeff</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11305 FOUR POINTS DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING II, THIRD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>AUSTIN</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78726</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Chief Legal Officer/Secretary</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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            <securityTitle>
                <value>Series 1 Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-04-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
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                <equitySwapInvolved>false</equitySwapInvolved>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3000.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.03</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>103548.00</value>
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                <transactionPricePerShare>
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                </transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
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                    <value>4047.00</value>
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                <transactionPricePerShare>
                    <value>58.9053</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>104501.00</value>
                </sharesOwnedFollowingTransaction>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
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            <transactionDate>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>953.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>59.2444</value>
                    <footnoteId id="F5"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>103548.00</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Series 1 Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-04-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3000.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>59.0185</value>
                    <footnoteId id="F7"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>100548.00</value>
                    <footnoteId id="F8"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.03</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-04-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3000.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2018-11-30</value>
                <footnoteId id="F9"/>
            </exerciseDate>
            <expirationDate>
                <value>2028-11-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Series 1 Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3000.00</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>87000.00</value>
                </sharesOwnedFollowingTransaction>
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                    <value>D</value>
                </directOrIndirectOwnership>
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        <derivativeTransaction>
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                <value>Non-Qualified Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.03</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-04-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
                <footnoteId id="F2"/>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5000.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2018-11-30</value>
                <footnoteId id="F9"/>
            </exerciseDate>
            <expirationDate>
                <value>2028-11-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Series 1 Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000.00</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>82000.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.</footnote>
        <footnote id="F2">The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.</footnote>
        <footnote id="F3">This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.</footnote>
        <footnote id="F4">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.17 to $59.1699, inclusive. The reporting person undertakes to provide to BigCommerce Holdings, Inc., any security holder of BigCommerce Holdings, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price with the ranges set forth in Footnote 4 to this Form 4.</footnote>
        <footnote id="F5">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.17 to $60.1699, inclusive. The reporting person undertakes to provide to BigCommerce Holdings, Inc., any security holder of BigCommerce Holdings, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price with the ranges set forth in Footnote 5 to this Form 4.</footnote>
        <footnote id="F6">This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.</footnote>
        <footnote id="F7">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.49 to $59.4899, inclusive. The reporting person undertakes to provide to BigCommerce Holdings, Inc., any security holder of BigCommerce Holdings, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price with the ranges set forth in Footnote 7 to this Form 4.</footnote>
        <footnote id="F8">Includes 80,005 Restricted Stock Units which are subject to forfeiture until they vest.</footnote>
        <footnote id="F9">Option was immediately exercisable on the date of grant.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Jeff Mengoli</signatureName>
        <signatureDate>2021-04-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
