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

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-02-09</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001830795</issuerCik>
        <issuerName>Quantum FinTech Acquisition Corp</issuerName>
        <issuerTradingSymbol>QFTA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001843688</rptOwnerCik>
            <rptOwnerName>Quantum Ventures LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O QUANTUM FINTECH ACQUISITION CORP</rptOwnerStreet1>
            <rptOwnerStreet2>4221 W. BOY SCOUT BLVD., SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>TAMPA</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33607</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-02-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3796335</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is being filed by Quantum Ventures LLC (&quot;Quantum Ventures&quot;). Messrs. Schaible, Caamano and Patel are the three managers of Quantum Ventures. Any action by Quantum Ventures with respect to the founder shares held by it, including voting and dispositive decisions, requires a majority vote of the board of managers. Accordingly, under the so-called &quot;rule of three,&quot; because voting and dispositive decisions are made by a majority of Quantum Ventures' managers, none of the managers of Quantum Ventures is deemed to be a beneficial owner of Quantum Ventures' securities, even those in which such manager holds a pecuniary interest. Accordingly, none of such individuals is deemed to have or share beneficial ownership of the founder shares held by Quantum Ventures.</footnote>
        <footnote id="F2">Pursuant to the Business Combination Agreement, dated November 16, 2022, as amended, by and among (i) the Issuer, (ii) Calculator New Pubco, Inc., a Delaware corporation and a wholly-owned Subsidiary of Issuer (&quot;New Pubco&quot;), (iii) Calculator Merger Sub 1, Inc., a Delaware corporation and a wholly-owned Subsidiary of New Pubco (&quot;Merger Sub 1&quot;), (iv) Calculator Merger Sub 2, Inc., a Delaware corporation and a wholly-owned Subsidiary of New Pubco, (v) AtlasClear, Inc., a Wyoming corporation, (vi) Atlas FinTech Holdings Corp, a Delaware corporation and (vii) Robert McBey, on February 9, 2024, the Issuer merged with and into Merger Sub 1, with Issuer surviving as a wholly-owned subsidiary of New Pubco (the &quot;Business Combination&quot;). As a result of the Business Combination, each issued and outstanding share of common stock of the Issuer was exchanged for one share of common stock of New PubCo.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ John Schaible, Manager</signatureName>
        <signatureDate>2024-02-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
