<SEC-DOCUMENT>0001213900-26-065814.txt : 20260605
<SEC-HEADER>0001213900-26-065814.hdr.sgml : 20260605
<ACCEPTANCE-DATETIME>20260605161229
ACCESSION NUMBER:		0001213900-26-065814
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260604
FILED AS OF DATE:		20260605
DATE AS OF CHANGE:		20260605

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Liao James
		CENTRAL INDEX KEY:			0002039369
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42285
		FILM NUMBER:		261069186

	MAIL ADDRESS:	
		STREET 1:		15375 BARRNCA PARKWAY
		CITY:			VIENNA
		STATE:			CA
		ZIP:			92618

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Foxx Development Holdings Inc.
		CENTRAL INDEX KEY:			0002013807
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		ORGANIZATION NAME:           	06 Technology
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		13284 POND SPRINGS RD
		STREET 2:		STE 405
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78729
		BUSINESS PHONE:		512-666-1277

	MAIL ADDRESS:	
		STREET 1:		13284 POND SPRINGS RD
		STREET 2:		STE 405
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78729

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Acri Capital Merger Sub I Inc.
		DATE OF NAME CHANGE:	20240229
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-06-04</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0002013807</issuerCik>
        <issuerName>Foxx Development Holdings Inc.</issuerName>
        <issuerTradingSymbol>FOXX</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002039369</rptOwnerCik>
            <rptOwnerName>Liao James</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>I/C/O FOXX DEVELOPMENT INC.</rptOwnerStreet1>
            <rptOwnerStreet2>15375 BARRANCA PARKWAY, SUITE C-106</rptOwnerStreet2>
            <rptOwnerCity>IRVINE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92618</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Technology Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-06-04</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1943</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.15</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>19431</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents 19,431 unvested restricted stock units (&quot;RSUs&quot;) from an initial grant of 31,090 RSUs made on November 5, 2024. The remaining unvested RSUs will continue to vest at a rate of 1/16th of the original grant amount on the quarterly anniversary date of the grant date provided the reporting person remains in continuous service on each vesting date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ James Liao</signatureName>
        <signatureDate>2026-06-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
