<SEC-DOCUMENT>0001209191-22-010512.txt : 20220217
<SEC-HEADER>0001209191-22-010512.hdr.sgml : 20220217
<ACCEPTANCE-DATETIME>20220217090402
ACCESSION NUMBER:		0001209191-22-010512
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220215
FILED AS OF DATE:		20220217
DATE AS OF CHANGE:		20220217

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Russell Austin
		CENTRAL INDEX KEY:			0001834552

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38791
		FILM NUMBER:		22645813

	MAIL ADDRESS:	
		STREET 1:		C/O LUMINAR TECHNOLOGIES, INC.
		STREET 2:		2603 DISCOVERY DRIVE, SUITE 100
		CITY:			ORLANDO
		STATE:			FL
		ZIP:			32826

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Luminar Technologies, Inc./DE
		CENTRAL INDEX KEY:			0001758057
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				831804317
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2603 DISCOVERY DRIVE, SUITE 100
		CITY:			ORLANDO
		STATE:			FL
		ZIP:			32826
		BUSINESS PHONE:		407-900-5259

	MAIL ADDRESS:	
		STREET 1:		2603 DISCOVERY DRIVE, SUITE 100
		CITY:			ORLANDO
		STATE:			FL
		ZIP:			32826

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Luminar Technologies, Inc./FL
		DATE OF NAME CHANGE:	20201203

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Gores Metropoulos, Inc.
		DATE OF NAME CHANGE:	20181102
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-02-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001758057</issuerCik>
        <issuerName>Luminar Technologies, Inc./DE</issuerName>
        <issuerTradingSymbol>LAZR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001834552</rptOwnerCik>
            <rptOwnerName>Russell Austin</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O LUMINAR TECHNOLOGIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2603 DISCOVERY DRIVE, SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>ORLANDO</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32826</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairperson, President &amp; CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-02-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8800</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.8957</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>88800</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-02-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.4934</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>95000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares of the Issuer's Class A Common Stock purchased by the Reporting Person pursuant to a certain Stock Purchase Plan, entered into as of December 21, 2021, between the Reporting Person and his broker in compliance with the provisions of Rule 10b5-1 under the Securities Exchange Act of 1934.</footnote>
        <footnote id="F2">The range of prices for the shares of Class A Common Stock is from $15.40 to $16.39. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.</footnote>
        <footnote id="F3">The range of prices for the shares of Class A Common Stock is from $16.40 to $16.62. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities purchased at each separate price.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Thomas Fennimore, as Attorney-in-Fact for Austin Russell</signatureName>
        <signatureDate>2022-02-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
