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<?xml version="1.0" encoding="windows-1252"?> |
<ownershipDocument> |
| <schemaVersion> X0202 </schemaVersion> |
| <documentType> 3 </documentType> |
| <periodOfReport> 2004-12-31 </periodOfReport> |
| <noSecuritiesOwned> 0 </noSecuritiesOwned> |
| <issuer> |
| | <issuerCik> 0001117042 </issuerCik> |
| | <issuerName> MPOWER HOLDING CORP </issuerName> |
| | <issuerTradingSymbol> MPE </issuerTradingSymbol> |
| | </issuer> |
| <reportingOwner> |
| | <reportingOwnerId> |
| | | <rptOwnerCik> 0001013240 </rptOwnerCik> |
| | | <rptOwnerName> ICG COMMUNICATIONS INC /DE/ </rptOwnerName> |
| | | </reportingOwnerId> |
| | <reportingOwnerAddress> |
| | | <rptOwnerStreet1> 161 INVERNESS DRIVE WEST </rptOwnerStreet1> |
| | | <rptOwnerStreet2></rptOwnerStreet2> |
| | | <rptOwnerCity> ENGLEWOOD </rptOwnerCity> |
| | | <rptOwnerState> CO </rptOwnerState> |
| | | <rptOwnerZipCode> 80112 </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 $0.001 per share </value> |
| </securityTitle> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 10740030 </value> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </nonDerivativeHolding> |
| | </nonDerivativeTable> |
| <derivativeTable> |
| | <derivativeHolding> |
| | | <securityTitle> |
| <value> Warrants to purchase common stock </value> |
| </securityTitle> |
| | | <conversionOrExercisePrice> |
| <value> 1.383 </value> |
| </conversionOrExercisePrice> |
| | | <exerciseDate> |
| <value> 2005-01-01 </value> |
| </exerciseDate> |
| | | <expirationDate> |
| <value> 2009-12-31 </value> |
| </expirationDate> |
| | | <underlyingSecurity> |
| <underlyingSecurityTitle> |
| <value> Common Stock </value> |
| </underlyingSecurityTitle> |
| <underlyingSecurityShares> |
| <value> 2000000 </value> |
| </underlyingSecurityShares> |
| </underlyingSecurity> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </derivativeHolding> |
| | </derivativeTable> |
| <ownerSignature> |
| | <signatureName> Daniel P. Caruso, CEO of the Reporting Person </signatureName> |
| | <signatureDate> 2005-01-07 </signatureDate> |
| | </ownerSignature> |
| </ownershipDocument> |