<SEC-DOCUMENT>0000899243-21-011807.txt : 20210315
<SEC-HEADER>0000899243-21-011807.hdr.sgml : 20210315
<ACCEPTANCE-DATETIME>20210315214316
ACCESSION NUMBER:		0000899243-21-011807
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210311
FILED AS OF DATE:		20210315
DATE AS OF CHANGE:		20210315

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Brunelle Anna
		CENTRAL INDEX KEY:			0001445390

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39463
		FILM NUMBER:		21743432

	MAIL ADDRESS:	
		STREET 1:		TIVO INC.
		STREET 2:		2160 GOLD STREET
		CITY:			ALVISO
		STATE:			CA
		ZIP:			95002

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ouster, Inc.
		CENTRAL INDEX KEY:			0001816581
		STANDARD INDUSTRIAL CLASSIFICATION:	GENERAL INDUSTRIAL MACHINERY & EQUIPMENT, NEC [3569]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1400 CENTREPARK BLVD.
		STREET 2:		STE. 810
		CITY:			WEST PALM BEACH
		STATE:			FL
		ZIP:			33401
		BUSINESS PHONE:		(561) 712-7860

	MAIL ADDRESS:	
		STREET 1:		1400 CENTREPARK BLVD.
		STREET 2:		STE. 810
		CITY:			WEST PALM BEACH
		STATE:			FL
		ZIP:			33401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Colonnade Acquisition Corp.
		DATE OF NAME CHANGE:	20200701
</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>2021-03-11</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001816581</issuerCik>
        <issuerName>Ouster, Inc.</issuerName>
        <issuerTradingSymbol>OUST</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001445390</rptOwnerCik>
            <rptOwnerName>Brunelle Anna</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>350 TREAT AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94110</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-03-11</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1372972</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1372972</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On March 11, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of December 21, 2020, by and among the Issuer, Beam Merger Sub, Inc. (&quot;Merger Sub&quot;) and Ouster Technologies, Inc. (&quot;Ouster Technologies&quot;), Merger Sub merged with and into Ouster Technologies with Ouster Technologies surviving as a wholly owned subsidiary of the Issuer (the &quot;Merger&quot;). Upon consummation of the Merger, each issued and outstanding share of common stock of Ouster Technologies was automatically cancelled and converted into approximately 0.703 shares of common stock of the Issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Myra Pasek, Attorney-in-Fact</signatureName>
        <signatureDate>2021-03-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
