<SEC-DOCUMENT>0001628280-26-050911.txt : 20260730
<SEC-HEADER>0001628280-26-050911.hdr.sgml : 20260730
<ACCEPTANCE-DATETIME>20260730113509
ACCESSION NUMBER:		0001628280-26-050911
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260728
FILED AS OF DATE:		20260730
DATE AS OF CHANGE:		20260730

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cudahy Theresa Ellen
		CENTRAL INDEX KEY:			0001827522
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39139
		FILM NUMBER:		261221316

	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_1785425706.xml
<DESCRIPTION>FORM 4
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-07-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001827522</rptOwnerCik>
            <rptOwnerName>Cudahy Theresa Ellen</rptOwnerName>
        </reportingOwnerId>
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            <rptOwnerStreet1>8484 GEORGIA AVE., SUITE 700</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SILVER SPRING</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20910</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>COO and Secretary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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                <value>2026-07-28</value>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionPricePerShare>
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                    <footnoteId id="F2"/>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>696380</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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                <sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
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                    <value>187500</value>
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                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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            <postTransactionAmounts>
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    <footnotes>
        <footnote id="F1">On July 25, 2025, the Company granted Ms. Cudahy 750,000 restricted stock units (&quot;RSUs&quot;) under the Company's 2020 Omnibus Incentive Plan. The RSUs granted may vest in four tranches of 187,500
each upon the date the Board determines that the applicable performance condition has been achieved: (i) the common stock of the Company achieves a 10-day volume weighted average price (VWAP) of $6.50; (ii) the common stock achieves a 10-day VWAP of $7.50; (iii) the common stock achieves a 10-day VWAP of $9.50; and (iv) the common stock achieves a 10-day VWAP of $11.50. In the event that the Performance Conditions are not met, the RSUs granted will vest in four equal installments of 187,500 on each of the first, second, third and fourth anniversaries of the grant date, and will be settled upon vesting (or within 30 days thereafter). All vesting events are subject to continued employment on each applicable vesting date.</footnote>
        <footnote id="F2">On July 24, 2026, the first tranche of 187,500 RSUs vested on the first anniversary of the grant date and these RSUs were settled on a one-for-one basis in shares of the Company's common stock on July 28, 2026.</footnote>
        <footnote id="F3">Represents the withholding of shares of the Company's common stock for tax purposes in connection with the vesting of restricted stock units previously granted.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ P. Brady Hayden as attorney-in-fact for Tia Cudahy</signatureName>
        <signatureDate>2026-07-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
