<SEC-DOCUMENT>0001179110-21-010892.txt : 20211213
<SEC-HEADER>0001179110-21-010892.hdr.sgml : 20211213
<ACCEPTANCE-DATETIME>20211213180747
ACCESSION NUMBER:		0001179110-21-010892
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211213
FILED AS OF DATE:		20211213
DATE AS OF CHANGE:		20211213

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PIGUET CLAUDE P
		CENTRAL INDEX KEY:			0001248735

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41163
		FILM NUMBER:		211489184

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TERAWULF INC.
		CENTRAL INDEX KEY:			0001083301
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				851909475
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9 FEDERAL STREET
		CITY:			EASTON
		STATE:			MD
		ZIP:			21601
		BUSINESS PHONE:		(410) 770-9500

	MAIL ADDRESS:	
		STREET 1:		9 FEDERAL STREET
		CITY:			EASTON
		STATE:			MD
		ZIP:			21601

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IKONICS CORP
		DATE OF NAME CHANGE:	20021216

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHROMALINE CORP
		DATE OF NAME CHANGE:	19990405
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-12-13</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001083301</issuerCik>
        <issuerName>TERAWULF INC.</issuerName>
        <issuerTradingSymbol>IKNX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001248735</rptOwnerCik>
            <rptOwnerName>PIGUET CLAUDE P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4832 GRAND AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DULUTH</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55807</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President, Operations</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-12-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>33.82</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21675</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-12-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>21675</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Shares underlying restricted stock unit award canceled in exchange for payment of $33.82 cash per share pursuant to a Restricted Stock Unit Cancellation and Release Agreement with the issuer.</footnote>
        <footnote id="F2">Disposed of in exchange for (i) one share of TeraWulf Inc. (f/k/a Telluride Holdco, Inc.) common stock, (ii) one contingent value right, and (iii) $5.00 cash as a result of the consummation of the first merger pursuant to the previously announced Agreement and Plan of Merger, dated June 24, 2021, as amended, by and among the issuer, TeraWulf Inc., Telluride Merger Sub I, Inc., Telluride Merger Sub II, Inc. and TeraClub Inc. (f/k/a TeraWulf Inc).</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ W. Morgan Burns, Attorney-in-Fact</signatureName>
        <signatureDate>2021-12-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
