<SEC-DOCUMENT>0000921895-26-000605.txt : 20260303
<SEC-HEADER>0000921895-26-000605.hdr.sgml : 20260303
<ACCEPTANCE-DATETIME>20260303203830
ACCESSION NUMBER:		0000921895-26-000605
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260228
FILED AS OF DATE:		20260303
DATE AS OF CHANGE:		20260303

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FRIEDBERG DANIEL M.
		CENTRAL INDEX KEY:			0001448795
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36451
		FILM NUMBER:		26718388

	MAIL ADDRESS:	
		STREET 1:		C/O SAGARD CAPITAL
		STREET 2:		325 GREENWICH AVENUE
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830

	FORMER NAME:	
		FORMER CONFORMED NAME:	FRIEDBERG DANIEL
		DATE OF NAME CHANGE:	20150622

	FORMER NAME:	
		FORMER CONFORMED NAME:	Friedberg Dan
		DATE OF NAME CHANGE:	20081027

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hampstead Park Environmental Services Investment Fund LLC
		CENTRAL INDEX KEY:			0001773840
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36451
		FILM NUMBER:		26718386

	BUSINESS ADDRESS:	
		STREET 1:		20 BALLWOOD ROAD
		CITY:			OLD GREENWICH
		STATE:			CT
		ZIP:			06870
		BUSINESS PHONE:		203-344-1227

	MAIL ADDRESS:	
		STREET 1:		20 BALLWOOD ROAD
		CITY:			OLD GREENWICH
		STATE:			CT
		ZIP:			06870

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hampstead Park Capital Management, LLC
		CENTRAL INDEX KEY:			0001773816
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36451
		FILM NUMBER:		26718387

	BUSINESS ADDRESS:	
		STREET 1:		20 BALLWOOD ROAD
		CITY:			OLD GREENWICH
		STATE:			CT
		ZIP:			06870
		BUSINESS PHONE:		2033441227

	MAIL ADDRESS:	
		STREET 1:		20 BALLWOOD ROAD
		CITY:			OLD GREENWICH
		STATE:			CT
		ZIP:			06870

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Quest Resource Holding Corp
		CENTRAL INDEX KEY:			0001442236
		STANDARD INDUSTRIAL CLASSIFICATION:	REFUSE SYSTEMS [4953]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				510665952
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3481 PLANO PARKWAY
		CITY:			THE COLONY
		STATE:			TX
		ZIP:			75056
		BUSINESS PHONE:		972-464-0004

	MAIL ADDRESS:	
		STREET 1:		3481 PLANO PARKWAY
		CITY:			THE COLONY
		STATE:			TX
		ZIP:			75056

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Infinity Resources Holdings Corp.
		DATE OF NAME CHANGE:	20121030

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	YouChange Holdings Corp
		DATE OF NAME CHANGE:	20100824

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BlueStar Financial Group, Inc.
		DATE OF NAME CHANGE:	20080806
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>form412364002fri_03032026.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-02-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001442236</issuerCik>
        <issuerName>Quest Resource Holding Corp</issuerName>
        <issuerTradingSymbol>QRHC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001448795</rptOwnerCik>
            <rptOwnerName>FRIEDBERG DANIEL M.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O HAMPSTEAD PARK CAPITAL MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>6 LIGHTHOUSE LANE</rptOwnerStreet2>
            <rptOwnerCity>OLD GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06870</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001773816</rptOwnerCik>
            <rptOwnerName>Hampstead Park Capital Management, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6 LIGHTHOUSE LANE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OLD GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06870</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001773840</rptOwnerCik>
            <rptOwnerName>Hampstead Park Environmental Services Investment Fund LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6 LIGHTHOUSE LANE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OLD GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06870</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8532</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.76</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>71160</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40585</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2842353</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By: Hampstead Park Environmental Services Investment Fund LLC</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These reported securities represent deferred stock units (&quot;DSUs&quot;) granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.</footnote>
        <footnote id="F2">The reported securities include (a) 18,153 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 53,007 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.</footnote>
        <footnote id="F3">Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 20,585 shares of common stock beneficially owned by Mr. Friedberg.</footnote>
        <footnote id="F4">This Form 4 is filed jointly by Hampstead Park Environmental Services Investment Fund LLC (&quot;Hampstead Park Environmental&quot;), Daniel Friedberg and Hampstead Park Capital Management, LLC (&quot;Hampstead Park Capital&quot;). Hampstead Park Capital is the sole member of Hampstead Park Environmental, and Mr. Friedberg is the Chief Executive Officer of Hampstead Park Capital; each may therefore be deemed to control Hampstead Park Environmental. In addition, Mr. Friedberg is a Director of the Issuer.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Daniel Friedberg</signatureName>
        <signatureDate>2026-03-03</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Hampstead Park Capital Management, LLC; By: /s/ Daniel Friedberg, Chief Executive Officer</signatureName>
        <signatureDate>2026-03-03</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Hampstead Park Environmental Services Investment Fund LLC; By: Hampstead Park Capital Management, LLC; By: /s/ Daniel Friedberg, Chief Executive Officer</signatureName>
        <signatureDate>2026-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
