SPCX: amended insider filing

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    <documentType>4/A</documentType>

    <periodOfReport>2026-09-11</periodOfReport>

    <dateOfOriginalSubmission>2026-09-15</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001181412</issuerCik>
        <issuerName>SPACE EXPLORATION TECHNOLOGIES CORP</issuerName>
        <issuerTradingSymbol>SPCX</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001495158</rptOwnerCik>
            <rptOwnerName>Gracias Antonio J.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O VALOR EQUITY PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>320 NORTH SANGAMON STREET, SUITE 1200</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60607</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>1</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-09-11</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value>E</value>
                <footnoteId id="F1"/>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>42790223</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>460624307</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Valor Entities</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1040862</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F6"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1170344</value>
                    <footnoteId id="F7"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By AJG Growth Fund LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
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                <sharesOwnedFollowingTransaction>
                    <value>2078622</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Gracias 2009 Family Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This amendment to the original Form 4 filed on September 15, 2026 (the &quot;Original Form&quot;) is filed to clarify that the Original Form 4 was filed voluntarily as the distributions in-kind reported and described in footnote 2 below, did not represent a change to the Reporting Person's pecuniary interest. In addition, based on additional information, this amendment reflects continued ownership of a portion of the distributed shares, which were inadvertently omitted from the Original Form. After giving effect to the distributions-in-kind, which represented non-reportable changes in form pursuant to Rule 16a-13, such shares are directly held by the Reporting Person and his children or are indirectly beneficially owned by the Reporting Person through the AJG Growth Fund LLC and the Gracias 2009 Family Trust.</footnote>
        <footnote id="F2">Represents pro rata distributions in-kind, without consideration, by Valor IV Space Holdings, LLC, Valor M33 II L.P., Valor M33 L.P., Valor R&amp;D Series LLC and Valor Space Holdings, LLC. These distributions were effected pursuant to a Rule 10b5-1 pre-set in-kind distribution plan adopted on June 12, 2026.</footnote>
        <footnote id="F3">The reported securities are held of record by the following entities: (i) CV Consortio A LLC, (ii) CV Consortio F LLC, (iii) CV Consortio G LLC, (iv) CV Consortio M LLC, (v) CV Consortio N LLC, (vi) KVSX I L.P., (vii) TM33 Partner Holdings LLC, (viii) Valor Equity Partners Opportunity Fund I L.P., (ix) Valor Equity Partners Opportunity Fund I-A L.P., (x) Valor Equity Partners Opportunity Fund I-B L.P., (xi) Valor Equity Partners VI L.P., (xii) Valor Equity Partners VI-A L.P., (xiii) Valor Equity Partners VI-B L.P., (xiv) Valor IV Space Holdings, LLC, (xv) Valor M33 II L.P., (xvi) Valor M33 IV L.P., (xvii) Valor M33 V L.P., (xviii) Valor M33 VI L.P., (xix) Valor M33 L.P., (xx) Valor R&amp;D Series LLC,</footnote>
        <footnote id="F4">(continue from footnote 3) (xxi) Valor Space Holdings, LLC, (xxii) Valor V Space Holdings, L.P., (xxiii) Valor VII Space Holdings, L.P., (xxiv) VG 1.0 L.P., (xxv) VG 2.0 L.P., (xxvi) VG AI Holdings L.P., (xxvii) VGX 1.0 L.P., (xxviii) VOF Space Holdings L.P., (xxix) VSV II XAI Holdings L.P., and (xxx) VX Holdings L.P. (collectively, &quot;Valor Entities&quot;).</footnote>
        <footnote id="F5">By virtue of the Reporting Person's position with the Valor Entities or the general partners of the Valor Entities, the Reporting Person may be deemed to have beneficial ownership of the shares held of record by the Valor Entities. The Reporting Person disclaims beneficial ownership of the shares held of record by each of the Valor Entities, except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F6">Includes shares of Class A Common Stock directly held by the Reporting Person and his children.</footnote>
        <footnote id="F7">Includes 29,423 shares of Class A Common Stock received as pro rata distributions in kind, without consideration, on various dates from August 5, 2026 to September 9, 2026, from non-affiliated third parties. Such pro rata distributions in-kind were made in accordance with the exemption afforded by Rule 16a-9 of the Securities Exchange Act of 1934, as amended.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Antonio J. Gracias</signatureName>
        <signatureDate>2026-09-30</signatureDate>
    </ownerSignature>
</ownershipDocument>