<SEC-DOCUMENT>0001575872-22-000975.txt : 20221012
<SEC-HEADER>0001575872-22-000975.hdr.sgml : 20221012
<ACCEPTANCE-DATETIME>20221012213701
ACCESSION NUMBER:		0001575872-22-000975
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20221012
FILED AS OF DATE:		20221012
DATE AS OF CHANGE:		20221012

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Campbell John Francis
		CENTRAL INDEX KEY:			0001947772

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41526
		FILM NUMBER:		221307963

	MAIL ADDRESS:	
		STREET 1:		8700 BITTERROOT CT.
		CITY:			LORTON
		STATE:			VA
		ZIP:			22079

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Castellum, Inc.
		CENTRAL INDEX KEY:			0001877939
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
		IRS NUMBER:				274079982
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9812 FALLS ROAD
		STREET 2:		#114-299
		CITY:			POTOMAC
		STATE:			MD
		ZIP:			20854
		BUSINESS PHONE:		(301) 461-1839

	MAIL ADDRESS:	
		STREET 1:		9812 FALLS ROAD
		STREET 2:		#114-299
		CITY:			POTOMAC
		STATE:			MD
		ZIP:			20854
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2022-10-12</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001877939</issuerCik>
        <issuerName>Castellum, Inc.</issuerName>
        <issuerTradingSymbol>CTM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001947772</rptOwnerCik>
            <rptOwnerName>Campbell John Francis</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3 BETHESDA METRO CENTER, SUITE 700</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BETHESDA</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20814</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>55616</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Options</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.60</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2021-02-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2027-12-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Options</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.60</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2020-05-14</value>
            </exerciseDate>
            <expirationDate>
                <value>2027-05-14</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Mr. Campbell was granted 25,000 options to purchase Common Stock at $1.60 per share all of which are exercisable .</footnote>
        <footnote id="F2">Mr. Campbell was granted 50,000 options to purchase Common Stock at $1.60 per shall all of which are exercisable.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ John Campbell</signatureName>
        <signatureDate>2022-10-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
