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

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-04-24</periodOfReport>

    <issuer>
        <issuerCik>0001376139</issuerCik>
        <issuerName>CVR ENERGY INC</issuerName>
        <issuerTradingSymbol>CVI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000921669</rptOwnerCik>
            <rptOwnerName>ICAHN CARL C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ICAHN ASSOCIATES HOLDING LLC</rptOwnerStreet1>
            <rptOwnerStreet2>16690 COLLINS AVENUE, PH-1</rptOwnerStreet2>
            <rptOwnerCity>SUNNY ISLES BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33160</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001257324</rptOwnerCik>
            <rptOwnerName>ICAHN ENTERPRISES G.P. INC.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>16690 COLLINS AVENUE, PH-1</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SUNNY ISLES BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33160</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001034563</rptOwnerCik>
            <rptOwnerName>ICAHN ENTERPRISES HOLDINGS L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>16690 COLLINS AVENUE, PH-1</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SUNNY ISLES BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33160</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>1</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.01 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2025-04-24</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>30183</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>18.20</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>70369434</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Please see footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.01 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2025-04-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>41130</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>18.16</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>70410564</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Please see footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is being filed by, and on behalf of, Mr. Carl C. Icahn, Icahn Enterprises Holdings L.P. (&quot;Icahn Enterprises Holdings&quot;) and Icahn Enterprises G.P. Inc. (&quot;Icahn Enterprises GP&quot; and, collectively with Mr. Icahn and Icahn Enterprises Holdings, the &quot;Reporting Persons&quot;). The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 21, 2025.</footnote>
        <footnote id="F2">IEP Energy Holding LLC directly holds shares of the Issuer's common stock. American Entertainment Properties Corp. (&quot;AEP&quot;) owns a 100% interest in IEP Energy Holding LLC. AEPC Holdings LLC owns 100% of the equity of AEP. Icahn Enterprises Holdings holds shares of the Issuer's common stock and owns a 100% interest in AEPC Holdings LLC. Icahn Enterprises L.P.  owns a 99% limited partner interest in Icahn Enterprises Holdings. Carl C. Icahn is the indirect holder of approximately 86% of the issued and outstanding depositary units representing limited partnership interests in Icahn Enterprises L.P. Icahn Enterprises GP is the general partner of and owns a 1% general partner interest in each of Icahn Enterprises Holdings and Icahn Enterprises L.P. Icahn Enterprises GP is 100% owned by Beckton Corp (&quot;Beckton&quot;). Beckton is 100% owned by Mr. Icahn.</footnote>
        <footnote id="F3">Each of AEP, Icahn Enterprises, Icahn Enterprises GP, Beckton and Mr. Icahn disclaims beneficial ownership of the Issuer's shares of common stock except to the extent of his or its pecuniary interest therein, if any.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Carl C. Icahn</signatureName>
        <signatureDate>2025-04-28</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ted Papapostolou, for Icahn Enterprises G.P. Inc., By: Ted Papapostolou, its Chief Financial Officer and Secretary</signatureName>
        <signatureDate>2025-04-28</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ted Papapostolou, for Icahn Enterprises Holdings L.P., By: Ted Papapostolou, its Chief Financial Officer and Secretary</signatureName>
        <signatureDate>2025-04-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
