<SEC-DOCUMENT>0001193125-26-338618.txt : 20260806
<SEC-HEADER>0001193125-26-338618.hdr.sgml : 20260806
<ACCEPTANCE-DATETIME>20260806183508
ACCESSION NUMBER:		0001193125-26-338618
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260804
FILED AS OF DATE:		20260806
DATE AS OF CHANGE:		20260806

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Otto Alexander
		CENTRAL INDEX KEY:			0001462468
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42265
		FILM NUMBER:		261250825

	MAIL ADDRESS:	
		STREET 1:		C/O KG CURA VERMOGENSVERWALTUNG G.M.B.H.
		STREET 2:		WANDSBEKER STR. 3-7
		CITY:			HAMBURG
		STATE:			2M
		ZIP:			22179

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Curbline Properties Corp.
		CENTRAL INDEX KEY:			0002027317
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE [6500]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				934224532
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		320 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		216-755-5500

	MAIL ADDRESS:	
		STREET 1:		3300 ENTERPRISE PARKWAY
		CITY:			BEACHWOOD
		STATE:			OH
		ZIP:			44122
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-08-04</periodOfReport>

    <issuer>
        <issuerCik>0002027317</issuerCik>
        <issuerName>Curbline Properties Corp.</issuerName>
        <issuerTradingSymbol>CURB</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001462468</rptOwnerCik>
            <rptOwnerName>Otto Alexander</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>true</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>KG CURA VERMOGENSVERWALTUNG G.M.B.H.&amp;CO.</rptOwnerStreet1>
            <rptOwnerStreet2>SASELER DAMM 39 A</rptOwnerStreet2>
            <rptOwnerCity>HAMBURG</rptOwnerCity>
            <rptOwnerNonUSStateTerritory>GERMANY</rptOwnerNonUSStateTerritory>
            <rptOwnerCountry>2M</rptOwnerCountry>
            <rptOwnerZipCode>D-22395</rptOwnerZipCode>
            <rptOwnerStateDescription>GERMANY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-08-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>38788</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>30.17</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7907272</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-08-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>134269</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>30.11</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7773003</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person effected multiple same-way open market sale transactions on the same day at different prices through a sale order executed by a broker-dealer. The reporting person reported on a single line all such transactions that occurred within a one dollar price range. The reporting person hereby undertakes to provide upon request by the SEC staff, the issuer, or a shareholder of the issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F2">Reflects the weighted average sale price. The range of prices for such transaction is between $30.05 and $30.28.</footnote>
        <footnote id="F3">Reflects the weighted average sale price. The range of prices for such transaction is between $30.06 and $30.25.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Frederic Arndts, managing director of KG CURA Vermogensverwaltung G.m.b.H. &amp; Co., For: Alexander Otto</signatureName>
        <signatureDate>2026-08-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
