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

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-10-20</periodOfReport>

    <issuer>
        <issuerCik>0001769628</issuerCik>
        <issuerName>CoreWeave, Inc.</issuerName>
        <issuerTradingSymbol>CRWV</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001027038</rptOwnerCik>
            <rptOwnerName>HUTCHINS GLENN H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O COREWEAVE, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>290 WEST MT. PLEASANT AVENUE, SUITE 4100</rptOwnerStreet2>
            <rptOwnerCity>LIVINGSTON</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07039</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-10-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>320</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11643</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10640</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>North Island Inferno Fund II LLC</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>384840</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Tide Mill LLC</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents an award of fully-vested restricted stock units settled upon grant for shares of the Issuer's Class A common stock. These securities were issued pursuant to the reporting person's election under the Issuer's Non-Employee Director Compensation Policy to receive shares in lieu of cash compensation payable for quarterly board service.</footnote>
        <footnote id="F2">The reported securities are directly held by North Island Inferno Fund II LLC (&quot;North Island Inferno&quot;). The reporting person serves as investment manager for North Island Inferno and as such may be deemed to exercise shared voting and investment discretion over securities held by it. The reporting person disclaims beneficial ownership for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (&quot;Exchange Act&quot;), except to the extent of his pecuniary interest therein, if any.</footnote>
        <footnote id="F3">The reported securities are directly held by Tide Mill LLC (&quot;Tide Mill&quot;).  The managing member of Tide Mill is North Island Management, LLC (&quot;NIM&quot;).  The reporting person serves as chairman of NIM and may be deemed to directly or indirectly exercise voting and investment discretion over the investments of NIM and Tide Mill.  The reporting person disclaims beneficial ownership for purposes of Section 16 of the Exchange Act except to the extent of his pecuniary interest therein, if any.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Nisha Antony, as Attorney-in-Fact</signatureName>
        <signatureDate>2026-10-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
