<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-12-30</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000856200</issuerCik>
        <issuerName>KAISER GROUP HOLDINGS INC</issuerName>
        <issuerTradingSymbol>KGHI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001348567</rptOwnerCik>
            <rptOwnerName>MARK S TENNENBAUM INVESTMENT TRUST</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>445 24TH STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SANTA MONICA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90402</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>200000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares are owned directly by the Mark S. Tennenbaum Investment Trust and indirectly by Stephen P. Rader and John Mass, as co-trustees of the Trust.  Messrs. Rader and Mass disclaim beneficial ownership of these shares except to the extent of their pecuniary interest therein.</footnote>
    </footnotes>

    <remarks>Exhibit List

Exhibit 24 - Powers of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ David A. Hollander, by power of attorney

Stephen P. Rader, individually and as trustee of the Mark S. Tennenbaum Investment Trust
and
John Mass, individually and as trustee of the Mark S. Tennenbaum Investment Trust</signatureName>
        <signatureDate>2006-01-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
