<SEC-DOCUMENT>0001209191-21-057507.txt : 20210923
<SEC-HEADER>0001209191-21-057507.hdr.sgml : 20210923
<ACCEPTANCE-DATETIME>20210923192728
ACCESSION NUMBER:		0001209191-21-057507
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210921
FILED AS OF DATE:		20210923
DATE AS OF CHANGE:		20210923

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Battery Ventures XI-B Side Fund, L.P.
		CENTRAL INDEX KEY:			0001665599
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40817
		FILM NUMBER:		211273587

	BUSINESS ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		(617) 948-3600

	MAIL ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Battery Ventures XI-A Side Fund, L.P.
		CENTRAL INDEX KEY:			0001665600
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40817
		FILM NUMBER:		211273588

	BUSINESS ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		(617) 948-3600

	MAIL ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Battery Ventures XI-B, L.P.
		CENTRAL INDEX KEY:			0001665601
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40817
		FILM NUMBER:		211273586

	BUSINESS ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		(617) 948-3600

	MAIL ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Battery Partners XI, LLC
		CENTRAL INDEX KEY:			0001870316
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40817
		FILM NUMBER:		211273591

	BUSINESS ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE, SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		617-948-3600

	MAIL ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE, SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Battery Ventures XI-A, L.P.
		CENTRAL INDEX KEY:			0001665603
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40817
		FILM NUMBER:		211273585

	BUSINESS ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		(617) 948-3600

	MAIL ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Battery Investment Partners XI, LLC
		CENTRAL INDEX KEY:			0001665602
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40817
		FILM NUMBER:		211273589

	BUSINESS ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		(617) 948-3600

	MAIL ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE
		STREET 2:		SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Battery Partners XI Side Fund, LLC
		CENTRAL INDEX KEY:			0001869817
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40817
		FILM NUMBER:		211273590

	BUSINESS ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE, SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		617-948-3600

	MAIL ADDRESS:	
		STREET 1:		ONE MARINA PARK DRIVE, SUITE 1100
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Amplitude, Inc.
		CENTRAL INDEX KEY:			0001866692
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		201 THIRD STREET, SUITE 200
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94103
		BUSINESS PHONE:		510 473-5668

	MAIL ADDRESS:	
		STREET 1:		201 THIRD STREET, SUITE 200
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94103
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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        <issuerName>Amplitude, Inc.</issuerName>
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            <rptOwnerStreet2></rptOwnerStreet2>
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            <rptOwnerStreet2></rptOwnerStreet2>
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    <reportingOwner>
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            <rptOwnerName>Battery Ventures XI-A Side Fund, L.P.</rptOwnerName>
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            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02210</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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    <reportingOwner>
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            <rptOwnerCik>0001665603</rptOwnerCik>
            <rptOwnerName>Battery Ventures XI-A, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE MARINA PARK DRIVE, SUITE 1100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02210</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
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    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001665599</rptOwnerCik>
            <rptOwnerName>Battery Ventures XI-B Side Fund, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE MARINA PARK DRIVE, SUITE 1100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02210</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
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            <isOther>0</isOther>
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    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001665601</rptOwnerCik>
            <rptOwnerName>Battery Ventures XI-B, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE MARINA PARK DRIVE, SUITE 1100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02210</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
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            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>73373</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                <sharesOwnedFollowingTransaction>
                    <value>73373</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1583176</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                <sharesOwnedFollowingTransaction>
                    <value>1583176</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1644822</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                    <value>1644822</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>418310</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                    <value>418310</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>356664</value>
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                    <value>0.00</value>
                    <footnoteId id="F1"/>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                    <value>356664</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
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        </nonDerivativeTransaction>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
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            <transactionDate>
                <value>2021-09-21</value>
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            <deemedExecutionDate></deemedExecutionDate>
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                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>73373</value>
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                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F7"/>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F7"/>
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            <expirationDate>
                <footnoteId id="F7"/>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
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                <underlyingSecurityShares>
                    <value>73373</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>171206</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
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            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1583176</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F7"/>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1583176</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3694078</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1644822</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F7"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1644822</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3837919</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>418310</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F7"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>418310</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>976058</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-09-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>356664</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F7"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>356664</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>832219</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeHolding>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F7"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>35713</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>35713</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F8"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F7"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>361099</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>361099</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F9"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.</footnote>
        <footnote id="F2">Shares held by Battery Investment Partners XI, LLC (&quot;BIP XI&quot;). Battery Partners XI, LLC (&quot;BP XI&quot;) is the managing member of BIP XI and may be deemed to beneficially own the shares held by BIP XI. BP XI's investment adviser is Battery Management Corp. Neeraj Agrawal, Michael Brown, Jesse Feldman, Russell Fleischer, Roger Lee, Itzik Parnafes, Chelsea Stoner, Dharmesh Thakker, and Scott Tobin (collectively the &quot;BP XI Managing Members&quot;) are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BIP XI. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.</footnote>
        <footnote id="F3">Shares held by Battery Ventures XI-A, L.P. (&quot;BV XI-A&quot;). BP XI is the general partner of BV XI-A and may be deemed to beneficially own the shares held by BV XI-A. BP XI's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-A. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.</footnote>
        <footnote id="F4">Shares held by Battery Ventures XI-A Side Fund, L.P. (&quot;BV XI-A SF&quot;). Battery Partners XI Side Fund, LLC (&quot;BP XI SF&quot;) is the general partner of BV XI-A SF and may be deemed to beneficially own the shares held by BV XI-A SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-A SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.</footnote>
        <footnote id="F5">Shares held by Battery Ventures XI-B, L.P. (&quot;BV XI-B&quot;). BP XI is the general partner of BV XI-B and may be deemed to beneficially own the shares held by BV XI-B. BP XI 's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-B. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.</footnote>
        <footnote id="F6">Shares held by Battery Ventures XI-B Side Fund, L.P. (&quot;BV XI-B SF&quot;). BP XI SF is the general partner of BV XI-B SF and may be deemed to beneficially own the shares held by BV XI-B SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-B SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.</footnote>
        <footnote id="F7">The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).</footnote>
        <footnote id="F8">Shares held by Battery Investment Partners Select Fund I, L.P. (&quot;BIP Select I&quot;). Battery Partners Select Fund I GP, LLC (&quot;BP Select I GP&quot;) is the general partner of BIP Select I and may be deemed to beneficially own the shares held by BP Select I. BP Select I GP's investment adviser is Battery Management Corp. The BP XI Managing Members and Morad Elhafed (collectively, the &quot;BP Select Managing Members&quot;) are the managing members of BP Select I GP and may be deemed to share voting and dispositive power over the securities held by BIP Select I. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16reports.</footnote>
        <footnote id="F9">Shares held by Battery Ventures Select Fund I, L.P. (&quot;BV Select I&quot;). Battery Partners Select Fund I, L.P. (&quot;BP Select I&quot;) is the general partner of BV Select I, BP Select I GP is the general partner of BP Select I and may be deemed to beneficially own the shares held by BV Select I. BP Select I GP's investment adviser is Battery Management Corp. The BP Select Managing Members are the managing members of BP Select I GP and may be deemed to share voting and dispositive power over the securities held by BV Select I. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.</footnote>
    </footnotes>

    <remarks>1 of 2: The number of joint filers exceeds the EDGAR maximum of 10 joint filers per Form. This Form 4 is being filed in conjunction with a Form 4 being filed by Battery Management Corp. and other filing persons.</remarks>

    <ownerSignature>
        <signatureName>/s/ Christopher Schiavo, as Attorney-in-Fact for Battery Partners XI, LLC</signatureName>
        <signatureDate>2021-09-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Christopher Schiavo, as Attorney-in-Fact for Battery Partners XI Side Fund, LLC</signatureName>
        <signatureDate>2021-09-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Christopher Schiavo, as Attorney-in-Fact for Battery Investment Partners XI, LLC</signatureName>
        <signatureDate>2021-09-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Christopher Schiavo, as Attorney-in-Fact for Battery Ventures XI-A Side Fund, L.P.</signatureName>
        <signatureDate>2021-09-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Christopher Schiavo, as Attorney-in-Fact for Battery Ventures XI-A, L.P.</signatureName>
        <signatureDate>2021-09-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Christopher Schiavo, as Attorney-in-Fact for Battery Ventures XI-B Side Fund, L.P.</signatureName>
        <signatureDate>2021-09-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Christopher Schiavo, as Attorney-in-Fact for Battery Ventures XI-B, L.P.</signatureName>
        <signatureDate>2021-09-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
