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

    <schemaVersion>X0508</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2025-12-01</periodOfReport>

    <dateOfOriginalSubmission>2025-12-03</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001237831</issuerCik>
        <issuerName>GLOBUS MEDICAL INC</issuerName>
        <issuerTradingSymbol>GMED</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002080625</rptOwnerCik>
            <rptOwnerName>Kline Kyle</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>VALLEY FORGE BUSINESS CENTER</rptOwnerStreet1>
            <rptOwnerStreet2>2560 GENERAL ARMISTEAD AVENUE</rptOwnerStreet2>
            <rptOwnerCity>AUDUBON</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19403</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Senior Vice President, CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy Class A Common Stock)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>63.68</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-12-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4896</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2032-01-27</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4896</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>104</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On December 3, 2025, the reporting person filed a Form 4 which inadvertently reported in Table II that 5,000 options were exercised prior to the sale of the underlying 4,896 shares of the issuer's Class A Common Stock that was reported in Table I. As correctly reported in this amendment, the reporting person exercised 4,896 options prior to the sale of the underlying 4,896 shares of the issuer's Class A Common Stock.</footnote>
        <footnote id="F2">These options were granted on January 27, 2022, and vest over a four-year period with one-fourth (1/4) of the options granted vesting on January 1, 2023, the first anniversary of the vesting commencement date, and the balance of the options granted vesting ratably on a monthly basis over the following 36 months.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kelly G. Huller, Attorney-in-Fact</signatureName>
        <signatureDate>2026-01-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
