<SEC-DOCUMENT>0001641172-25-006736.txt : 20250429
<SEC-HEADER>0001641172-25-006736.hdr.sgml : 20250429
<ACCEPTANCE-DATETIME>20250429210148
ACCESSION NUMBER:		0001641172-25-006736
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250428
FILED AS OF DATE:		20250429
DATE AS OF CHANGE:		20250429

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MARLETT CHRISTOPHER A
		CENTRAL INDEX KEY:			0000897744
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41751
		FILM NUMBER:		25890479

	MAIL ADDRESS:	
		STREET 1:		100 WILSHIRE BLVD
		CITY:			SANTA MONICA
		STATE:			CA
		ZIP:			90401

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MDB Capital Holdings, LLC
		CENTRAL INDEX KEY:			0001934642
		STANDARD INDUSTRIAL CLASSIFICATION:	FINANCE SERVICES [6199]
		ORGANIZATION NAME:           	02 Finance
		EIN:				874366624
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4209 MEADOWDALE LN
		CITY:			DALLAS
		STATE:			TX
		ZIP:			95229
		BUSINESS PHONE:		310-526-5000

	MAIL ADDRESS:	
		STREET 1:		4209 MEADOWDALE LN
		CITY:			DALLAS
		STATE:			TX
		ZIP:			95229
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-04-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001934642</issuerCik>
        <issuerName>MDB Capital Holdings, LLC</issuerName>
        <issuerTradingSymbol>MDBH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000897744</rptOwnerCik>
            <rptOwnerName>MARLETT CHRISTOPHER A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>14135 MIDWAY ROAD,</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE G-150</rptOwnerStreet2>
            <rptOwnerCity>ADDISON,</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75001</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Co-Founder</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>RSU</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.00</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-04-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>900000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2025-04-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2025-04-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>900000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.25</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-04-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>900000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2025-04-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2035-04-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>900000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>900000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">400,000 Class A Shares will vest as follows: 200,000 shares vest immediately on grant and the remainder vest in 22 equal monthly installments of 8,333 shares for each complete subsequent month of Continuous Service (as defined in the 2022 Equity Performance Plan) and 8,341 will vest on March 15, 2027.</footnote>
        <footnote id="F2">500,000 Class A Shares are performance-based and vest upon the date on which either of the following occurs during the Exercisability Period (as defined in the Plan and option agreement: (x) a Class A Share has traded in the market on which the Class A Shares are listed for at least thirty (30) trading days at an average price of $20.00 or more, whether consecutive or non-consecutive, or (y) there are distributions of cash, stock or other property by the Company on the Class A Shares, at a value of $20.00 or more in the aggregate per Class A Share.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Chrsitopher Marlett</signatureName>
        <signatureDate>2025-04-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
