<SEC-DOCUMENT>0001950047-24-007837.txt : 20241022
<SEC-HEADER>0001950047-24-007837.hdr.sgml : 20241022
<ACCEPTANCE-DATETIME>20241022161727
ACCESSION NUMBER:		0001950047-24-007837
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20241022
DATE AS OF CHANGE:		20241022

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STEEL DYNAMICS INC
		CENTRAL INDEX KEY:			0001022671
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				351929476
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-21719
		FILM NUMBER:		241386517

	BUSINESS ADDRESS:	
		STREET 1:		7575 W JEFFERSON BLVD
		CITY:			FORT WAYNE
		STATE:			IN
		ZIP:			46804
		BUSINESS PHONE:		260 459 3553

	MAIL ADDRESS:	
		STREET 1:		7575 W JEFFERSON BLVD
		CITY:			FORT WAYNE
		STATE:			IN
		ZIP:			46804

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Anderson James Stanley
		CENTRAL INDEX KEY:			0001921061
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		203 E BERRY STREET
		STREET 2:		AWB SUITE 804
		CITY:			FORT WAYNE
		STATE:			IN
		ZIP:			46802
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
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    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001921061</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001022671</issuerCik>
            <issuerName>STEEL DYNAMICS INC.</issuerName>
            <secFileNumber>000-21719</secFileNumber>
            <issuerAddress>
                <ns2:street1>7575 West Jefferson Blvd.</ns2:street1>
                <ns2:city>Fort Wayne</ns2:city>
                <ns2:stateOrCountry>IN</ns2:stateOrCountry>
                <ns2:zipCode>46804</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(260) 969-3500</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>JAMES ANDERSON</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <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>10000</noOfUnitsSold>
            <aggregateMarketValue>1295450.00</aggregateMarketValue>
            <noOfUnitsOutstanding>154302528</noOfUnitsOutstanding>
            <approxSaleDate>10/22/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>10000</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2024</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>10/22/2024</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ James Anderson</signature>
        </noticeSignature>
    </formData>
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</SEC-DOCUMENT>
