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SEC EDGAR · Insider purchase

L: Robusto Dino reported buying shares

1 reported purchase of non-derivative securities. Code P includes open-market and private purchases; it does not establish motive.

Follow L
Became public
Jun 1, 2026, 8:59 AM EDT
Event / period date
May 29, 2026
Collected
Nov 10, 2026, 7:36 AM EST

Why this is connected

This filing identifies LOEWS CORP as the issuer of the security. The company's SEC identifier connects it to L.

Open the original source ↗Follow company activity in L

Reported transactions

Robusto Dino (Director)

5,000 shares · Common Stock

May 29, 2026 · $104.74 per share

Value calculated from the reported shares and prices: $523,700.00.

Code P covers open-market and private purchases. Grants, option exercises, and tax withholding are excluded from purchase results. Read the source footnotes for ownership and pricing details.

Source evidence

Read the source excerpt or record
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-05-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000060086</issuerCik>
        <issuerName>LOEWS CORP</issuerName>
        <issuerTradingSymbol>L</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001348889</rptOwnerCik>
            <rptOwnerName>Robusto Dino</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O LOEWS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>9 WEST 57TH STREET</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-05-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>104.74</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10235</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Thomas H. Watson by power of attorney for Dino Robusto</signatureName>
        <signatureDate>2026-06-01</signatureDate>
    </ownerSignature>
</ownershipDocument>

Congressional trading in L

These disclosures provide context. Their presence does not establish a link between a trader and the event.

  • Rep. Ro Khanna (D-CA-17)

    Sold Loews L

    $1K–$15K · Traded Oct 7, 2026 · disclosed Nov 5, 2026 · Spouse

  • Rep. Ro Khanna (D-CA-17)

    Bought Loews L

    $1K–$15K · Traded Sep 4, 2026 · disclosed Oct 7, 2026 · Spouse

  • Rep. Ro Khanna (D-CA-17)

    Sold Loews L

    $1K–$15K · Traded Jan 13, 2026 · disclosed Feb 6, 2026 · Spouse

  • Rep. Lisa C. McClain (R-MI-9)

    Sold Loews L

    $1K–$15K · Traded Oct 31, 2025 · disclosed Nov 21, 2025 · Spouse

    Committee overlap: Financial Services

  • Rep. Lisa C. McClain (R-MI-9)

    Sold Loews L

    $1K–$15K · Traded Oct 30, 2025 · disclosed Nov 21, 2025 · Spouse

    Committee overlap: Financial Services

  • Rep. Lisa C. McClain (R-MI-9)

    Bought Loews L

    $1K–$15K · Traded Oct 30, 2025 · disclosed Nov 21, 2025 · Spouse

    Committee overlap: Financial Services

  • Rep. Lisa C. McClain (R-MI-9)

    Bought Loews L

    $1K–$15K · Traded Jun 17, 2025 · disclosed Aug 13, 2025 · Spouse · filed 57 days later

    Committee overlap: Financial Services

  • Rep. J. French Hill (R-AR-2)

    Bought Loews L

    $50K–$100K · Traded Jun 23, 2025 · disclosed Jul 24, 2025

    Committee overlap: Financial Services

Original documents control. Public records can be amended, and company connections may require interpretation. Nothing here is investment advice.