<SEC-DOCUMENT>0001654954-25-009916.txt : 20250821
<SEC-HEADER>0001654954-25-009916.hdr.sgml : 20250821
<ACCEPTANCE-DATETIME>20250821160740
ACCESSION NUMBER:		0001654954-25-009916
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250820
FILED AS OF DATE:		20250821
DATE AS OF CHANGE:		20250821

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Russell Kline
		CENTRAL INDEX KEY:			0002049257
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41420
		FILM NUMBER:		251240813

	MAIL ADDRESS:	
		STREET 1:		10331 NE 6TH AVENUE
		CITY:			MIAMI SHORES
		STATE:			FL
		ZIP:			33138

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>4
<SEQUENCE>1
<FILENAME>section16.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-08-20</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002049257</rptOwnerCik>
            <rptOwnerName>Russell Kline</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O 374 WATER INC.</rptOwnerStreet1>
            <rptOwnerStreet2>100 SOUTHCENTER COURT, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>MORRISVILLE</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>27560</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>true</isOfficer>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-08-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.239</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>368642</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.2368 to $0.2416, inclusive. The reporting person undertakes to provide to 374Water Inc., any security holder of 374Water Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Russell Kline</signatureName>
        <signatureDate>2025-08-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
