<SEC-DOCUMENT>0001950047-25-006264.txt : 20250822
<SEC-HEADER>0001950047-25-006264.hdr.sgml : 20250822
<ACCEPTANCE-DATETIME>20250822164359
ACCESSION NUMBER:		0001950047-25-006264
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250822
DATE AS OF CHANGE:		20250822

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NPK International Inc.
		CENTRAL INDEX KEY:			0000071829
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MISCELLANEOUS EQUIPMENT RENTAL & LEASING [7350]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				721123385
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-02960
		FILM NUMBER:		251246867

	BUSINESS ADDRESS:	
		STREET 1:		9320 LAKESIDE BOULEVARD
		STREET 2:		SUITE 100
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77381
		BUSINESS PHONE:		281-362-6800

	MAIL ADDRESS:	
		STREET 1:		9320 LAKESIDE BOULEVARD
		STREET 2:		SUITE 100
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77381

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEWPARK RESOURCES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEW PARK MINING CO
		DATE OF NAME CHANGE:	19720828

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LANIGAN MATTHEW
		CENTRAL INDEX KEY:			0001672978
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		9320 LAKESIDE BOULEVARD
		STREET 2:		SUITE 100
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77381
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001672978</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0000071829</issuerCik>
            <issuerName>NPK International Inc.</issuerName>
            <secFileNumber>001-02960</secFileNumber>
            <issuerAddress>
                <ns2:street1>9320 Lakeside Boulevard</ns2:street1>
                <ns2:street2>Suite 100</ns2:street2>
                <ns2:city>The Woodlands</ns2:city>
                <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                <ns2:zipCode>77381</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(281)362-6800</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MATTHEW LANIGAN</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>69896</noOfUnitsSold>
            <aggregateMarketValue>698960.00</aggregateMarketValue>
            <noOfUnitsOutstanding>84432766</noOfUnitsOutstanding>
            <approxSaleDate>08/22/2025</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>08/22/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>69896</amountOfSecuritiesAcquired>
            <paymentDate>08/22/2025</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <remarks>The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.&#13;
</remarks>
        <noticeSignature>
            <noticeDate>08/22/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>05/23/2025</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Matthew Lanigan</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
