<SEC-DOCUMENT>0001108205-25-000065.txt : 20250522
<SEC-HEADER>0001108205-25-000065.hdr.sgml : 20250522
<ACCEPTANCE-DATETIME>20250522161302
ACCESSION NUMBER:		0001108205-25-000065
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250520
FILED AS OF DATE:		20250522
DATE AS OF CHANGE:		20250522

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Duvall Diantha
		CENTRAL INDEX KEY:			0001696784
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30347
		FILM NUMBER:		25977253

	MAIL ADDRESS:	
		STREET 1:		C/O GENOCEA BIOSCIENCES, INC.
		STREET 2:		100 ACORN PARK DRIVE 5TH FLOOR
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02140

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CURIS INC
		CENTRAL INDEX KEY:			0001108205
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				043505116
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		128 SPRING STREET
		STREET 2:		BUILDING C, SUITE 500
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421
		BUSINESS PHONE:		617-503-6500

	MAIL ADDRESS:	
		STREET 1:		128 SPRING STREET
		STREET 2:		BUILDING C, SUITE 500
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1747944773.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-05-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001108205</issuerCik>
        <issuerName>CURIS INC</issuerName>
        <issuerTradingSymbol>CRIS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001696784</rptOwnerCik>
            <rptOwnerName>Duvall Diantha</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>128 SPRING STREET</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING C - SUITE 500</rptOwnerStreet2>
            <rptOwnerCity>LEXINGTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02421</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee stock option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.13</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-05-20</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>135000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.13</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2035-01-27</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>135000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>135000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This option grant, as disclosed in Curis Inc.'s 2025 proxy statement, was approved by the Board of Directors of Curis, Inc. on January 28, 2025, contingent upon shareholder approval of Curis's Amendment No. 1 to the Fifth Amended and Restated 2010 Stock Incentive Plan to increase the number of shares authorized for issuance thereunder; and further provided that such option would not be exercisable and no common stock would be issued thereunder, if Amendment No. 1 to the Fifth Amended and Restated 2010 Plan was not approved by Curis's shareholders. On May 20, 2025, at the 2025 annual meeting of shareholders, Curis's shareholders approved Amendment No. 1 to the Fifth Amended and Restated 2010 Plan.</footnote>
        <footnote id="F2">The option grant described in this Form 4 filing vests as to 25% of the original shares on January 28, 2026 and as to an additional 6.25% of the original shares each successive quarter and until January 28, 2029.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Diantha Duvall, Attorney-in-fact</signatureName>
        <signatureDate>2025-05-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
