<SEC-DOCUMENT>0001104659-25-005355.txt : 20250122
<SEC-HEADER>0001104659-25-005355.hdr.sgml : 20250122
<ACCEPTANCE-DATETIME>20250122203308
ACCESSION NUMBER:		0001104659-25-005355
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250117
FILED AS OF DATE:		20250122
DATE AS OF CHANGE:		20250122

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Deliargyris Efthymios
		CENTRAL INDEX KEY:			0001751617
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36792
		FILM NUMBER:		25547376

	MAIL ADDRESS:	
		STREET 1:		C/O PLX PHARMA,INC.8285 EL RIO STREET
		STREET 2:		SUITE 210
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77054

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cytosorbents Corp
		CENTRAL INDEX KEY:			0001175151
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				980373793
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		305 COLLEGE ROAD EAST
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08540
		BUSINESS PHONE:		973-329-8885

	MAIL ADDRESS:	
		STREET 1:		305 COLLEGE ROAD EAST
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08540

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MedaSorb Technologies CORP
		DATE OF NAME CHANGE:	20060807

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GILDER ENTERPRISES INC
		DATE OF NAME CHANGE:	20020611
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>OWNERSHIP DOCUMENT
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    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-01-17</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001175151</issuerCik>
        <issuerName>Cytosorbents Corp</issuerName>
        <issuerTradingSymbol>CTSO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001751617</rptOwnerCik>
            <rptOwnerName>Deliargyris Efthymios</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CYTOSORBENTS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>305 COLLEGE ROAD EAST</rptOwnerStreet2>
            <rptOwnerCity>PRINCETON</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08540</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Medical Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

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            <exerciseDate>
                <value>2024-12-09</value>
            </exerciseDate>
            <expirationDate>
                <value>2025-01-10</value>
            </expirationDate>
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                <underlyingSecurityTitle>
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        <derivativeTransaction>
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                <footnoteId id="F1"/>
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                    <value>16233</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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            <exerciseDate>
                <value>2025-01-17</value>
            </exerciseDate>
            <expirationDate>
                <value>2025-02-24</value>
                <footnoteId id="F7"/>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Series B Right Warrants</value>
                <footnoteId id="F1"/>
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            <deemedExecutionDate></deemedExecutionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>16233</value>
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                <transactionPricePerShare>
                    <footnoteId id="F8"/>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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            <exerciseDate>
                <value>2025-01-17</value>
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                <value>2025-04-10</value>
                <footnoteId id="F9"/>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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    <footnotes>
        <footnote id="F1">On January 17, 2025, the reporting person exercised certain subscription rights certificates received pursuant to a rights offering (the &quot;Rights Offering&quot;) with CytoSorbents Corporation (the &quot;Issuer&quot;) whereby the reporting person received Units consisting of an aggregate of 16,233 (i) shares of Issuer's common stock, par value $0.001 per share (the &quot;Common Stock&quot;), (ii) Series A Warrants to purchase one share of Common Stock, and (iii) Series B Warrants to purchase one share of Common Stock, at a subscription purchase price of $1.00 per unit for an aggregate cost of $16,233. The Rights Offering closed on January 10, 2025 (the &quot;Closing Date&quot;).</footnote>
        <footnote id="F2">Includes: (i) the following RSUs, which vest as to two-thirds of the award on the first anniversary of the date of grant and one-third of the award on the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date) that will settle into shares of common stock, par value $0.001 per share (the &quot;Common Stock&quot;) upon vesting: 55,000 RSUs granted on July 7, 2023 and of which 18,334 RSUs remain unvested as of the date hereof;</footnote>
        <footnote id="F3">(continued from footnote 2) (ii) the following RSUs that will be settled into Common Stock upon vesting upon a &quot;Change In Control&quot; of the Company as defined in the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan (the &quot;Plan&quot;): (a) 120,000 RSUs granted on April 9, 2020 and (b) 55,000 RSUs granted on August 10, 2022;</footnote>
        <footnote id="F4">(continued from footnote 3) (iii) the following RSUs, which vest in equal parts on the first year anniversary of the date of grant and the second year anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will settle into shares of Common Stock of the Company upon vesting: 61,000 RSUs granted on April 2, 2024 and remain unvested as of the date hereof; and</footnote>
        <footnote id="F5">(continued from footnote 4) (iv) 148,691 shares of Common Stock owned by the reporting person.</footnote>
        <footnote id="F6">The Series A Right Warrants exercise price shall be equal to 90% of the 5-day volume weighted average price of the Issuer's Common Stock over the 5-trading days prior to the expiration date of the Series A Right Warrants, rounded down to the nearest whole cent but (x) not lower than $1.00 and (y) not higher than $2.00.</footnote>
        <footnote id="F7">The Series A Right Warrants expire 45 calendar days following the Closing Date.</footnote>
        <footnote id="F8">The Series B Right Warrants exercise price shall be equal to 90% of the 5-day volume weighted average price of our Common Stock over the 5-trading days prior to the expiration date of the Series B Right Warrants, rounded down to the nearest whole cent but (x) not lower than $2.00 and (y) not higher than $4.00.</footnote>
        <footnote id="F9">The Series B Right Warrants expire 90 calendar days following the Closing Date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Efthymios Deliargyris</signatureName>
        <signatureDate>2025-01-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
