<SEC-DOCUMENT>0001209191-23-010923.txt : 20230217
<SEC-HEADER>0001209191-23-010923.hdr.sgml : 20230217
<ACCEPTANCE-DATETIME>20230217194817
ACCESSION NUMBER:		0001209191-23-010923
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230215
FILED AS OF DATE:		20230217
DATE AS OF CHANGE:		20230217

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Farokhzad Omid
		CENTRAL INDEX KEY:			0001586852

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39747
		FILM NUMBER:		23644820

	MAIL ADDRESS:	
		STREET 1:		C/O SEER, INC.
		STREET 2:		3800 BRIDGE PARKWAY, SUITE 102
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Seer, Inc.
		CENTRAL INDEX KEY:			0001726445
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
		IRS NUMBER:				821153150
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3800 BRIDGE PARKWAY, SUITE 102
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065
		BUSINESS PHONE:		650-453-0000

	MAIL ADDRESS:	
		STREET 1:		3800 BRIDGE PARKWAY, SUITE 102
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Seer Biosciences, Inc.
		DATE OF NAME CHANGE:	20171226
</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>2023-02-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001726445</issuerCik>
        <issuerName>Seer, Inc.</issuerName>
        <issuerTradingSymbol>SEER</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001586852</rptOwnerCik>
            <rptOwnerName>Farokhzad Omid</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SEER, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>3800 BRIDGE PARKWAY, SUITE 102</rptOwnerStreet2>
            <rptOwnerCity>REDWOOD CITY</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94065</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO, President and Chair</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-02-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>402000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>781584</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.59</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-02-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>650000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2033-02-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>650000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>650000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The reported shares are represented by restricted stock units, or RSUs, which vest in four equal annual installments beginning on February 15, 2024.</footnote>
        <footnote id="F2">The option is subject to vesting requirements based upon achievement of specified performance-based criteria (the &quot;Stock Price Hurdle&quot;) which requires that the Issuer achieve a stock price equal to or greater than 150% of the option exercise price during the period beginning on the grant date and ending on February 15, 2030 (the &quot;Performance Period&quot;).  If the Stock Price Hurdle is achieved within the Performance Period, then one fourth of the shares subject to the option vest on the date that achievement of the Stock Price Hurdle is certified and the remaining shares vest annually thereafter in three equal installments.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ David Horn, by power of attorney</signatureName>
        <signatureDate>2023-02-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
