<SEC-DOCUMENT>0001179110-21-005386.txt : 20210514
<SEC-HEADER>0001179110-21-005386.hdr.sgml : 20210514
<ACCEPTANCE-DATETIME>20210514173207
ACCESSION NUMBER:		0001179110-21-005386
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210415
FILED AS OF DATE:		20210514
DATE AS OF CHANGE:		20210514

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Eisenberg David
		CENTRAL INDEX KEY:			0001818150

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15371
		FILM NUMBER:		21926284

	MAIL ADDRESS:	
		STREET 1:		C/O ISTAR, 1114 AVENUE OF THE AMERICAS
		STREET 2:		FL. 39
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ISTAR INC.
		CENTRAL INDEX KEY:			0001095651
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				956881527
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1114 AVENUE OF THE AMERICAS
		STREET 2:		39TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		2129309400

	MAIL ADDRESS:	
		STREET 1:		1114 AVENUE OF THE AMERICAS
		STREET 2:		39TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ISTAR FINANCIAL INC
		DATE OF NAME CHANGE:	20000501

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STARWOOD FINANCIAL INC
		DATE OF NAME CHANGE:	19990923
</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>2021-04-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001095651</issuerCik>
        <issuerName>ISTAR INC.</issuerName>
        <issuerTradingSymbol>STAR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001818150</rptOwnerCik>
            <rptOwnerName>Eisenberg David</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ISTAR INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1114 AVENUE OF THE AMERICAS FLR 39</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-05-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value>E</value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6819</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21319</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Effective on May 13, 2021, the Reporting Person was awarded 6,819 shares of Common Stock of iStar Inc. (NYSE:STAR) in accordance with the provisions of the iStar Inc. Non-Employee Directors' Deferral Plan, which shares are owned directly. These shares are restricted and may not be sold or otherwise transferred until they vest on the date of the 2022 annual meeting of shareholders of iStar Inc.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>David Eisenberg</signatureName>
        <signatureDate>2021-05-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
