<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

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    <periodOfReport>2021-01-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001801170</issuerCik>
        <issuerName>CLOVER HEALTH INVESTMENTS, CORP. /DE</issuerName>
        <issuerTradingSymbol>CLOV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001838733</rptOwnerCik>
            <rptOwnerName>Toy Andrew</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CLOVER HEALTH INVESTMENTS, CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>725 COOL SPRINGS BLVD., SUITE 320</rptOwnerStreet2>
            <rptOwnerCity>FRANKLIN</rptOwnerCity>
            <rptOwnerState>TN</rptOwnerState>
            <rptOwnerZipCode>37067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CTO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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            </securityTitle>
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            <transactionDate>
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            <expirationDate>
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        <derivativeTransaction>
            <securityTitle>
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            <transactionDate>
                <value>2021-01-07</value>
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                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Performance-based Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
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            <transactionDate>
                <value>2021-01-07</value>
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            <deemedExecutionDate></deemedExecutionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3582291</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F10"/>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                    <footnoteId id="F2"/>
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                <underlyingSecurityShares>
                    <value>3582291</value>
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                    <value>3582291</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Performance-based Restricted Stock Units</value>
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                <footnoteId id="F9"/>
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            <transactionDate>
                <value>2021-01-07</value>
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            <deemedExecutionDate></deemedExecutionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>11142328</value>
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                <transactionPricePerShare>
                    <value>0.00</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                <footnoteId id="F9"/>
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                <footnoteId id="F9"/>
            </expirationDate>
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                    <value>Class B Common Stock</value>
                    <footnoteId id="F2"/>
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                    <value>11142328</value>
                </underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
                    <value>11142328</value>
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    <footnotes>
        <footnote id="F1">The stock option is fully vested and immediately exercisable.</footnote>
        <footnote id="F2">The Class B Common Stock will be convertible into shares of Class A Common Stock on a one-to-one basis at the option of the holders of the Class B Common Stock at any time upon written notice to the Issuer.  In addition, the Class B Common Stock will automatically convert into shares of Class A Common Stock immediately prior to the close of business on the earliest to occur of certain events specified in the Issuer's Amended and Restated Certificate of Incorporation.</footnote>
        <footnote id="F3">Received in connection with the Issuer's business combination (the &quot;Business Combination&quot;) with Clover Health Investments, Corp. (&quot;Legacy Clover&quot;) in accordance with the terms of the Agreement and Plan of Merger dated as of October 5, 2020, among the Issuer (f/k/a Social Capital Hedosophia Holdings Corp. III), Asclepius Merger Sub Inc., and Legacy Clover, as amended by that certain Amendment to the Agreement and Plan of Merger, dated as of December 8, 2020, in exchange for options to acquire 305,131 shares of common stock of Legacy Clover for $3.45 per share.</footnote>
        <footnote id="F4">100% of the stock option is immediately exercisable.  The stock option vests as to 1/5th of the total number of shares on February 5, 2019 and 1/60th of the total number of shares in equal monthly installments thereafter, subject to the continuous service of the Reporting Person on each vesting date.</footnote>
        <footnote id="F5">Received in connection with the Business Combination in exchange for options to acquire 1,525,655 shares of common stock of Legacy Clover for $3.45 per share.</footnote>
        <footnote id="F6">The option vested as to 1/60th of the total number of shares on July 1, 2019, and thereafter vested and shall continue to vest as to 1/60th of the total number of shares in equal monthly installments.</footnote>
        <footnote id="F7">Received in connection with the Business Combination in exchange for options to acquire 2,579,460 shares of common stock of Legacy Clover for $4.61 per share.</footnote>
        <footnote id="F8">Received in connection with the Business Combination in exchange for options to acquire 1,774,408 shares of common stock of Legacy Clover for $11.27 per share.</footnote>
        <footnote id="F9">Each performance-based restricted stock unit (&quot;PRSU&quot;) represents a contingent right to receive one share of the Issuer's Class B Common Stock. The PRSUs generally vest in five equal installments on January 7 of each of 2022, 2023, 2024, 2025 and 2026 respectively, provided that the applicable performance goal has been achieved by such date (and, if not, on the date the applicable performance goal is subsequently achieved), and are subject to the continuous service of the Reporting Person through the applicable vesting date. The applicable performance goal for each tranche will be satisfied if the Issuer's Class A Common Stock achieves a specified per share market price for such tranche for at least 90 consecutive calendar days. If the applicable performance goals have not been achieved by January 7, 2026, all unvested PRSUs will be forfeited.</footnote>
        <footnote id="F10">Received in connection with the Business Combination in exchange for restricted stock units that will have settled for 1,732,187 shares of common stock of Legacy Clover.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Gia Lee, as Attorney-in-Fact</signatureName>
        <signatureDate>2021-01-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
