Common use of Amendment of Terms of Rights Clause in Contracts

Amendment of Terms of Rights. The terms of the Rights and the Rights Agreement may be amended in any respect without the consent of the Rights holders on or prior to the Distribution Date; thereafter, the terms of the Rights and the Rights Agreement may be amended without the consent of the Rights holders in order to cure any ambiguities or to make changes which do not adversely affect the interests of Rights holders (other than the Acquiring Person). Voting Rights: Rights will not have any voting rights. Anti-Dilution Provisions: Rights will have the benefit of certain customary anti-dilution provisions. Taxes: The Rights distribution should not be taxable for federal income tax purposes. However, following an event which renders the Rights exercisable or upon redemption of the Rights, stockholders may recognize taxable income. The foregoing is a summary of certain principal terms of the Stockholder Rights Plan only and is qualified in its entirety by reference to the Preferred Stock Rights Agreement dated as of June 30, 2003 between the Company and Computershare Investor Services LLC as Rights Agent (the "Rights Agreement"). The Rights Agreement may be amended from time to time. A copy of the Rights Agreement was filed with the Securities and Exchange Commission as an Exhibit to a Registration Statement on Form 8-A dated July 7, 2003. A copy of the Rights Agreement is available free of charge from the Company.

Amendment of Terms of Rights. The terms of the Rights and the Rights Agreement may be amended in any respect without the consent of the Rights holders on or prior to the Distribution Date; thereafter, the terms of the Rights and the Rights Agreement may be amended without the consent of the Rights holders in order to cure any ambiguities or to make changes which do not adversely affect the interests of Rights holders (other than the Acquiring Person). Voting Rights: Rights will not have any voting rights. Anti-Dilution Provisions: Rights will have the benefit of certain customary anti-dilution provisions. Taxes: The Rights distribution should not be taxable for federal income tax purposes. However, following an event which that renders the Rights exercisable or upon redemption of the Rights, stockholders may recognize taxable income. The foregoing is a summary of certain principal terms of the Stockholder Rights Plan only and is qualified in its entirety by reference to the Preferred Stock Rights Agreement dated as of June 30February 28, 2003 2002 between the Company and Computershare Mellon Investor Services LLC as Rights Agent (the "Rights Agreement"). The Rights Agreement may be amended from time to time. A copy of the Rights Agreement was filed with the Securities and Exchange Commission as an Exhibit to a Registration Statement on Form 8-A dated July 7March 5, 20032002. A copy of the Rights Agreement is available free of charge from the Company.. 2 QuickLinks

Amendment of Terms of Rights. The terms of the Rights and the Rights Agreement may be amended in any respect without the consent of the Rights holders on or prior to the Distribution Date; thereafter, the terms of the Rights and the Rights Agreement may be amended without the consent of the Rights holders in order to cure any ambiguities or to make changes which do not adversely affect the interests of Rights holders (other than the Acquiring Person). Voting Rights: Rights will not have any voting rights. Anti-Dilution Provisions: Rights will have the benefit of certain customary anti-dilution provisions. Taxes: The Rights distribution should not be taxable for federal income tax purposes. However, following an event which renders the Rights exercisable or upon redemption of the Rights, stockholders may recognize taxable income. The foregoing is a summary of certain principal terms of the Stockholder Rights Plan only and is qualified in its entirety by reference to the Preferred Stock Rights Agreement dated as of June 30July 19, 2003 2002 between the Company and Computershare Mellon Investor Services LLC as Rights Agent (the "“Rights Agreement"”). The Rights Agreement may be amended from time to time. A copy of the Rights Agreement was filed with the Securities and Exchange Commission as an Exhibit to a Registration Statement on Form 8-A dated July 724, 20032002. A copy of the Rights Agreement is available free of charge from the Company.