<SEC-DOCUMENT>0002091481-25-000001.txt : 20251016
<SEC-HEADER>0002091481-25-000001.hdr.sgml : 20251016
<ACCEPTANCE-DATETIME>20251016172059
ACCESSION NUMBER:		0002091481-25-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251015
FILED AS OF DATE:		20251016
DATE AS OF CHANGE:		20251016

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Daye Wilfred ZhongKei
		CENTRAL INDEX KEY:			0002091481
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36896
		FILM NUMBER:		251398418

	MAIL ADDRESS:	
		STREET 1:		5 GLEN STREET
		STREET 2:		107
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mercurity Fintech Holding Inc.
		CENTRAL INDEX KEY:			0001527762
		STANDARD INDUSTRIAL CLASSIFICATION:	FINANCE SERVICES [6199]
		ORGANIZATION NAME:           	09 Crypto Assets
		EIN:				000000000

	BUSINESS ADDRESS:	
		STREET 1:		1330 AVENUE OF THE AMERICAS, FL 33,
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		(8610) 6266 8858

	MAIL ADDRESS:	
		STREET 1:		1330 AVENUE OF THE AMERICAS, FL 33,
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	JMU Ltd
		DATE OF NAME CHANGE:	20161230

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Wowo Ltd
		DATE OF NAME CHANGE:	20110810
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-10-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001527762</issuerCik>
        <issuerName>Mercurity Fintech Holding Inc.</issuerName>
        <issuerTradingSymbol>MFH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002091481</rptOwnerCik>
            <rptOwnerName>Daye Wilfred ZhongKei</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1330 AVE OF AMERICAS</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CSO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock (ordinary shares)</value>
            </securityTitle>
            <transactionDate>
                <value>2025-10-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1195</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.87</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40470</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock (ordinary shares)</value>
            </securityTitle>
            <transactionDate>
                <value>2025-10-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2170</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.37</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>38300</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">(1) The sales reported on 10/15/2025 and 10/16/2025 were effected in multiple transactions at prices ranging from
$14.61 to $15.51 on October 15 and from $10.32 to $13.75 on October 16.
The weighted-average prices have been reported above. The reporting person will provide full information
regarding the number of shares sold at each separate price upon request by the SEC staff, the issuer, or a
security holder of the issuer.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Wilfred Zhongkei Daye</signatureName>
        <signatureDate>2025-10-16</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Wilfred Zhongkei Daye</signatureName>
        <signatureDate>2025-10-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
