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

    <schemaVersion>X0508</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2024-01-02</periodOfReport>

    <dateOfOriginalSubmission>2024-01-02</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001338749</issuerCik>
        <issuerName>POTLATCHDELTIC CORP</issuerName>
        <issuerTradingSymbol>PCH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001272732</rptOwnerCik>
            <rptOwnerName>DRISCOLL WILLIAM LINDEKE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>601 W. FIRST AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1600</rptOwnerStreet2>
            <rptOwnerCity>SPOKANE</rptOwnerCity>
            <rptOwnerState>WA</rptOwnerState>
            <rptOwnerZipCode>99201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock Units</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2024-01-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>415.827</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>415.827</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>22214.046</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the PotlatchDeltic Corporation Deferred Compensation Plan for Directors II and will be paid on a 1-for-1 basis in shares of the issuer's common stock.</footnote>
        <footnote id="F2">Each unit of phantom stock is the economic equivalent of one share of the issuer's common stock.</footnote>
        <footnote id="F3">The original Form 4, filed on January 2, 2024, is being amended by this Form 4 solely to correct a clerical error, which resulted in the misreporting of the number of phantom stock units acquired on January 2, 2024 as 423.772 phantom stock units, when in fact the reporting person acquired 415.827 phantom stock units on that date. To correct this error, the amount of securities acquired, amount of underlying securities and amount of securities beneficially owned following the transaction are reduced by 7.945 phantom stock units in this Form 4.</footnote>
        <footnote id="F4">Phantom stock units will be paid upon the reporting person's termination from service with PotlatchDeltic in accordance with the provisions of the PotlatchDeltic Corporation Deferred Compensation Plan II for Directors.</footnote>
        <footnote id="F5">Includes phantom stock units allocated to the reporting person's Deferred Compensation Account since the reporting person's last report that represent quarterly dividends.</footnote>
    </footnotes>

    <remarks>William L. Driscoll, Director</remarks>

    <ownerSignature>
        <signatureName>/s/ Michele L. Tyler, Attorney-in-Fact</signatureName>
        <signatureDate>2024-04-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
