<SEC-DOCUMENT>0001326110-22-000018.txt : 20220325
<SEC-HEADER>0001326110-22-000018.hdr.sgml : 20220325
<ACCEPTANCE-DATETIME>20220325210423
ACCESSION NUMBER:		0001326110-22-000018
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220323
FILED AS OF DATE:		20220325
DATE AS OF CHANGE:		20220325

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Adcock Richard
		CENTRAL INDEX KEY:			0001830328

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37507
		FILM NUMBER:		22772983

	MAIL ADDRESS:	
		STREET 1:		C/O NANTKWEST, INC.
		STREET 2:		3530 JOHN HOPKINS COURT
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ImmunityBio, Inc.
		CENTRAL INDEX KEY:			0001326110
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				431979754
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3530 JOHN HOPKINS COURT
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		(858) 633-0300

	MAIL ADDRESS:	
		STREET 1:		3530 JOHN HOPKINS COURT
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NantKwest, Inc.
		DATE OF NAME CHANGE:	20150713

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Conkwest, Inc.
		DATE OF NAME CHANGE:	20140416

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ZelleRx Corp
		DATE OF NAME CHANGE:	20050504
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_164825664654486.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-03-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001326110</issuerCik>
        <issuerName>ImmunityBio, Inc.</issuerName>
        <issuerTradingSymbol>IBRX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001830328</rptOwnerCik>
            <rptOwnerName>Adcock Richard</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O IMMUNITYBIO, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>3530 JOHN HOPKINS COURT</rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92121</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO &amp; President</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.83</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2022-03-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>350000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2032-03-23</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>350000.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>350000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.83</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2022-03-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>350000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2032-03-23</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>350000.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>350000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Subject to the reporting person's continuing to be a Service Provider (as defined in the Amended and Restated 2015 Equity Incentive Plan) through each applicable vesting date, one-third (1/3rd) of the shares subject to the option shall vest in equal annual installments on each of the first, second and third anniversaries of the vesting commencement date, such that all shares shall be fully vested on the third anniversary of the vesting commencement date. The vesting commencement date for this option is March 23, 2022.</footnote>
        <footnote id="F2">Subject to the Issuer's attainment of a financial goal for fiscal year 2022, one-third (1/3rd) of the shares subject to the option shall vest in equal annual installments on each of the first, second and third anniversaries of the vesting commencement date, such that all shares shall be fully vested on the third anniversary of the vesting commencement date, subject to the reporting person's continuing to be a Service Provider (as defined in the Amended and Restated 2015 Equity Incentive Plan) through each applicable vesting date. The vesting commencement date for this option is March 23, 2022.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jason Liljestrom, as Attorney-in-Fact</signatureName>
        <signatureDate>2022-03-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
