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<?xml version="1.0" encoding="windows-1252"?> |
<ownershipDocument> |
| <schemaVersion> X0202 </schemaVersion> |
| <documentType> 4 </documentType> |
| <periodOfReport> 2005-04-15 </periodOfReport> |
| <notSubjectToSection16> 1 </notSubjectToSection16> |
| <issuer> |
| | <issuerCik> 0001231868 </issuerCik> |
| | <issuerName> INTERNATIONAL STEEL GROUP INC </issuerName> |
| | <issuerTradingSymbol> ISG </issuerTradingSymbol> |
| | </issuer> |
| <reportingOwner> |
| | <reportingOwnerId> |
| | | <rptOwnerCik> 0001026610 </rptOwnerCik> |
| | | <rptOwnerName> ROSS WILBUR L JR </rptOwnerName> |
| | | </reportingOwnerId> |
| | <reportingOwnerAddress> |
| | | <rptOwnerStreet1> C/O INTERNATIONAL STEEL GROUP INC. </rptOwnerStreet1> |
| | | <rptOwnerStreet2> 4020 KINROSS LAKES PARKWAY </rptOwnerStreet2> |
| | | <rptOwnerCity> RICHFIELD </rptOwnerCity> |
| | | <rptOwnerState> OH </rptOwnerState> |
| | | <rptOwnerZipCode> 44286 </rptOwnerZipCode> |
| | | <rptOwnerStateDescription></rptOwnerStateDescription> |
| | | </reportingOwnerAddress> |
| | <reportingOwnerRelationship> |
| | | <isDirector> 1 </isDirector> |
| | | <isOfficer> 0 </isOfficer> |
| | | <isTenPercentOwner> 0 </isTenPercentOwner> |
| | | <isOther> 0 </isOther> |
| | | </reportingOwnerRelationship> |
| | </reportingOwner> |
| <nonDerivativeTable> |
| | <nonDerivativeTransaction> |
| | | <securityTitle> |
| <value> Common Stock, Par Value $0.01 </value> |
| </securityTitle> |
| | | <transactionDate> |
| <value> 2005-04-15 </value> |
| </transactionDate> |
| | | <transactionCoding> |
| <transactionFormType> 4 </transactionFormType> |
| <transactionCode> D </transactionCode> |
| <equitySwapInvolved> 0 </equitySwapInvolved> |
| </transactionCoding> |
| | | <transactionAmounts> |
| <transactionShares> |
| <value> 6936786 </value> |
| <footnoteId id="F1"/> |
| </transactionShares> |
| <transactionPricePerShare> |
| <footnoteId id="F2"/> |
| </transactionPricePerShare> |
| <transactionAcquiredDisposedCode> |
| <value> D </value> |
| </transactionAcquiredDisposedCode> |
| </transactionAmounts> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 0 </value> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </nonDerivativeTransaction> |
| | </nonDerivativeTable> |
| <derivativeTable></derivativeTable> |
| <footnotes> |
| | <footnote id="F1"> The total number of shares deemed to be beneficially owned included (a) 1,968,723 shares of common stock held directly by WLR Recovery Fund II, L.P. (the general partner of WLR Recovery Fund L.P. is WLR Recovery Associates II LLC, of which Mr. Ross is the managing member) that are deemed to be beneficially owned by Mr. Ross, (ii) 2,673,263 shares of common stock held directly by WLR Recovery Associates LLC (Mr. Ross is the managing member of WLR Recovery Associates LLC) that are deemed to be beneficially owned by Mr. Ross, (iii) 2,141,811 shares of common stock held directly by WLR Recovery Associates I LLC (Mr. Ross is the managing member of WLR Recovery Associates I LLC) that are deemed to be beneficially owned by Mr. Ross, and (iv)152,989 shares of common stock held directly by Mr. Ross or through his individual retirement account. </footnote> |
| | <footnote id="F2"> Disposed of pursuant to merger agreement between International Steel Group Inc. ("ISG"), Mittal Steel Company N.V. and the other parties thereto pursuant to which on April 15, 2005, all of the issued and outstanding shares of the Common Stock, par value $0.01 per share, of ISG were converted into the right to receive (1) $42.00 per share in cash, (2) 1.21740 Mittal Steel class A common shares, par value E0.01 per share, or (3) a combination of cash and Mittal Steel class A common shares. All elections are subject to the proration procedures provided in the merger agreement. </footnote> |
| | </footnotes> |
| <ownerSignature> |
| | <signatureName> /s/ Wilber L. Ross Jr. </signatureName> |
| | <signatureDate> 2005-04-18 </signatureDate> |
| | </ownerSignature> |
| </ownershipDocument> |