<SEC-DOCUMENT>0001654954-26-001681.txt : 20260227
<SEC-HEADER>0001654954-26-001681.hdr.sgml : 20260227
<ACCEPTANCE-DATETIME>20260227170754
ACCESSION NUMBER:		0001654954-26-001681
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20260209
FILED AS OF DATE:		20260227
DATE AS OF CHANGE:		20260227

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McKnight Stephen H.
		CENTRAL INDEX KEY:			0002114378
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41420
		FILM NUMBER:		26701600

	MAIL ADDRESS:	
		STREET 1:		100 SOUTHCENTER COURT
		STREET 2:		SUITE 2000
		CITY:			MORRISVILLE
		STATE:			NC
		ZIP:			27560

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			374Water Inc.
		CENTRAL INDEX KEY:			0000933972
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTORS & GENERATORS [3621]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				880271109
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		701 W. MAIN STREET
		STREET 2:		SUITE 410
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27701
		BUSINESS PHONE:		440-609-9677

	MAIL ADDRESS:	
		STREET 1:		3710 SHANNON RD #51877
		STREET 2:		SUITE 410
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27717

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	POWERVERDE, INC.
		DATE OF NAME CHANGE:	20080820

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VYREX CORP
		DATE OF NAME CHANGE:	19951206
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>section16.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2026-02-09</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000933972</issuerCik>
        <issuerName>374Water Inc.</issuerName>
        <issuerTradingSymbol>SCWO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002114378</rptOwnerCik>
            <rptOwnerName>McKnight Stephen H.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O 374WATER INC.</rptOwnerStreet1>
            <rptOwnerStreet2>100 SOUTHCENTER COURT, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>MORRISVILLE</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>27560</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>190000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By the Stephen H. McKnight Revocable Trust, of which the Reporting Person is the sole trustee.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.9352</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2024-11-18</value>
            </exerciseDate>
            <expirationDate>
                <value>2029-11-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>12000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <remarks>Exhibit 24.1 Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Stephen H. McKnight</signatureName>
        <signatureDate>2026-02-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
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<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>a374water-section16powero.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
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POWER OF ATTORNEY</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 48px">
<font style="font-family: Times New Roman; font-size: 13px">The
undersigned, as a Section 16 reporting person of 374Water Inc. (the
&#x201C;Company&#x201D;), hereby constitutes and appoints each of
Russell Kline, Meaghan Nelson and Sabina Wahl, or any of them
acting singly, and with full power of substitution and
re-substitution, the undersigned&#x2019;s true and lawful
attorney-in-fact (each of such persons and their substitutes being
referred to herein as the &#x201C;Attorney-in-Fact&#x201D;)
to:</font></div>
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<td style="vertical-align: top; width: 3%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">(1)</font></div>
</td>
<td style="vertical-align: middle; width: 97%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">execute,
deliver and file for and on behalf of the undersigned, in the
undersigned&#x2019;s capacity as an officer and/or director of the
Company, Forms&#xA0;3, 4, and 5 in accordance with
Section&#xA0;16(a) of the Securities Exchange Act of 1934 (the
&#x201C;Exchange Act&#x201D;);</font></div>
</td>
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<font style="font-family: Times New Roman; font-size: 13px">(2)</font></div>
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<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">do and
perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such
Form&#xA0;3, 4, or 5, complete and execute any amendment or
amendments thereto, and timely file such form with the Securities
and Exchange Commission (&#x201C;SEC&#x201D;) and any stock exchange
or similar authority;</font></div>
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<div>
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<tr>
<td style="vertical-align: top; width: 3%">
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">(3)</font></div>
</td>
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<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">seek or
obtain, as the undersigned&#x2019;s representative and on the
undersigned&#x2019;s behalf, information on transactions in the
Company&#x2019;s securities from any third party, including brokers,
employee benefit plan administrators and trustees, and the
undersigned hereby authorizes any such person to release any such
information to the undersigned and approves and ratifies any such
release of information; and</font></div>
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<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">(4)</font></div>
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<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 0px">
<font style="font-family: Times New Roman; font-size: 13px">take
any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such Attorney-in-Fact, may be of
benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the documents executed by
such Attorney-in-Fact on behalf of the undersigned pursuant to this
Power of Attorney shall be in such form and shall contain such
terms and conditions as such Attorney-in-Fact may approve in such
Attorney-in-Fact&#x2019;s discretion.</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">&#xA0;</font></div>
<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 48px">
<font style="font-family: Times New Roman; font-size: 13px">The
undersigned hereby grants to each such Attorney-in-Fact full power
and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the
exercise of any of the rights and powers herein granted, as fully
to all intents and purposes as the undersigned might or could do if
personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such Attorney-in-Fact
shall lawfully do or cause to be done by virtue of this Power of
Attorney and the rights and powers herein granted. The undersigned
acknowledges that the foregoing Attorneys-in-Fact, in serving in
such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned&#x2019;s
responsibilities to comply with Section&#xA0;16 of the Exchange
Act. The undersigned further acknowledges and agrees that the
Attorney-in-Fact and the Company are relying on written and oral
information provided by the undersigned to complete such forms and
the undersigned is responsible for reviewing the completed forms
prior to their filing. The Attorney-in-Fact and the Company are not
responsible for any errors or omissions in such filings. The
Attorney-in-Fact and the Company are not responsible for
determining whether or not the transactions reported could be
matched with any other transactions for the purpose of determining
liability for short-swing profits under
Section&#xA0;16(b).</font></div>
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<div style="text-align: justify; margin-left: 0px; margin-right: 0px; text-indent: 48px">
<font style="font-family: Times New Roman; font-size: 13px">This
Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with
respect to the undersigned&#x2019;s holdings of and transactions in
securities issued by the Company, unless earlier revoked by the
undersigned in a signed writing delivered to the Company and the
foregoing Attorneys-in-Fact.</font></div>
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<font style="font-family: Times New Roman; font-size: 13px">IN
WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 18th day of February, 2026.</font></div>
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<font style="color: #000000; background-color: #FFFFFF; font-family: Times New Roman; font-size: 13px">
/s/ Stephen H. McKnight</font></div>
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Signature</font></div>
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&#xA0;</font></div>
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<font style="color: #000000; font-family: Times New Roman; font-size: 13px">
Stephen H. McKnight</font></div>
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Print Name</font></div>
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0085180-00001</font></div>
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