ShadowBuys
Sign inStart free trial

SEC EDGAR · Insider purchase

MTDR: Ehrman Monika U reported buying shares

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

Follow MTDR
Became public
Nov 10, 2026, 7:52 AM EST
Event / period date
Nov 9, 2026
Collected
Nov 10, 2026, 7:56 AM EST

Why this is connected

This filing identifies Matador Resources Co as the issuer of the security. The company's SEC identifier connects it to MTDR.

Open the original source ↗Follow company activity in MTDR

Reported transactions

Ehrman Monika U (Director)

339 shares · Common Stock

Nov 9, 2026 · $50.10 per share

Value calculated from the reported shares and prices: $16,983.90.

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>2026-11-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001520006</issuerCik>
        <issuerName>Matador Resources Co</issuerName>
        <issuerTradingSymbol>MTDR</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001786877</rptOwnerCik>
            <rptOwnerName>Ehrman Monika U</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>5400 LBJ FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1500</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</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>2026-11-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>339</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>50.10</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>45806</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Includes 3,642 restricted stock units (&quot;RSUs&quot;) granted to the reporting person on June 11, 2026.  Such RSUs will vest, and an equal number of shares of common stock will be deliverable to the reporting person on June 11, 2027, or if sooner, immediately prior to the election of nominees for director at the 2027 annual meeting of shareholders of the Issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Monika U. Ehrman, by Derek E. Gabriel as attorney-in-fact</signatureName>
        <signatureDate>2026-11-10</signatureDate>
    </ownerSignature>
</ownershipDocument>

Congressional trading in MTDR

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

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