<SEC-DOCUMENT>0001628280-26-043612.txt : 20260616
<SEC-HEADER>0001628280-26-043612.hdr.sgml : 20260616
<ACCEPTANCE-DATETIME>20260616170832
ACCESSION NUMBER:		0001628280-26-043612
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260612
FILED AS OF DATE:		20260616
DATE AS OF CHANGE:		20260616

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Keeley Patrick J.
		CENTRAL INDEX KEY:			0001827521
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39139
		FILM NUMBER:		261095679

	MAIL ADDRESS:	
		STREET 1:		8484 GEORGIA AVE
		STREET 2:		SUITE 700
		CITY:			SILVER SPRING
		STATE:			MD
		ZIP:			20910

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CuriosityStream Inc.
		CENTRAL INDEX KEY:			0001776909
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MOTION PICTURE & VIDEO TAPE PRODUCTION [7812]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8484 GEORGIA AVE.
		STREET 2:		SUITE 700
		CITY:			SILVER SPRING
		STATE:			MD
		ZIP:			20910
		BUSINESS PHONE:		301-755-2050

	MAIL ADDRESS:	
		STREET 1:		8484 GEORGIA AVE.
		STREET 2:		SUITE 700
		CITY:			SILVER SPRING
		STATE:			MD
		ZIP:			20910

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Software Acquisition Group Inc.
		DATE OF NAME CHANGE:	20190515
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1781644109.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-06-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001776909</issuerCik>
        <issuerName>CuriosityStream Inc.</issuerName>
        <issuerTradingSymbol>CURI</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001827521</rptOwnerCik>
            <rptOwnerName>Keeley Patrick J.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>8484 GEORGIA AVE., SUITE 700</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SILVER SPRING</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20910</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-06-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>31559</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.6983</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>188450</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2027-02-04</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>21341</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21341</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On June 12, 2026, the Company purchased 31,559 shares directly from Mr. Keeley under the Company's share repurchase program. The per-share price was based on a five-day volume-weighted average price calculated as of the transaction date in a transaction approved by the Audit Committee of the Company's Board of Directors.</footnote>
        <footnote id="F2">On Feb 4, 2026 the Company granted Mr. Keeley 21,341 restricted stock units under the Plan. Each restricted stock unit represents a contingent right to receive one share of common stock. The restricted stock units granted will vest on Feb 4, 2027, and will be settled upon vesting (or within 30 days thereafter).</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ P. Brady Hayden as attorney-in-fact for Patrick Keeley</signatureName>
        <signatureDate>2026-06-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
