Filed Pursuant to Rule 424(b)(3)
Registration No. 333-109489
Prospectus Supplement No. 6
(To Prospectus Dated December 22, 2003)
3.25% Convertible Notes due August 1, 2010
and the Class A Common Stock
Issuable Upon Conversion of the Notes
This prospectus supplement relates to the resale by the holders of our 3.25% convertible notes due August 1, 2010 and the shares of Class A common stock issuable upon conversion of the notes. This prospectus supplement also relates to the issuance and sale of our Class A common stock issued upon the conversion of the notes by subsequent purchasers of the notes.
You should read this prospectus supplement together with the prospectus dated December 22, 2003, which is to be delivered with this prospectus supplement. The terms of the notes are set forth in the prospectus.
The table below sets forth additional information concerning beneficial ownership of the notes and the shares of Class A common stock issuable upon conversion of the notes, and supplements and amends the table appearing under Selling Securityholders beginning on page 17 of the prospectus. To the extent that a selling securityholder is listed both in the table below and in the table appearing in the prospectus, the information set forth below regarding the selling securityholder updates and amends the information in the prospectus.
Amount of Notes
Shares of Class A
|Shares of Class A
Before the Offering
|Shares of Class A|
After the Offering(3)
Excelsior Master Fund, L.P.(4)
|*||Indicates less than 1%.|
|(1)||Assumes conversion of the entire amount of notes held by the selling securityholder at the rate of 81.8080 shares of our Class A common stock per each $1,000 principal amount of notes converted. The number of shares of Class A common stock issuable upon conversion of the notes may be adjusted under circumstances described under Description of Notes. Under the terms of the notes, cash will be paid instead of issuing any fractional shares.|
|(2)||Based on 230,916,954 shares of Class A common stock outstanding as of June 14, 2005.|
|(3)||We cannot estimate the amount of notes or the number of shares of Class A common stock issuable upon conversion of the notes that will be beneficially owned by the selling securityholders after any offering by the selling securityholders because they may sell all or a portion of the notes or the shares of Class A common stock beneficially owned by them. However, for purposes of this table, we have assumed that, after completion of the offering, none of the shares of Class A common stock covered by this prospectus will be held by the selling securityholders.|
|(4)||Edward E. Lees, James A. White, Jr. and Robert Jordan have voting and investment control over the securities beneficially owned by this selling securityholder.|
Investing in the notes and our Class A common stock involves a high degree of risk.
See Risk Factors beginning on page 8 of the prospectus.
We will not receive any of proceeds from the sale of notes or Class A common stock by the selling securityholders. The selling securityholders may sell the notes or Class A common stock either directly or through underwriters, broker-dealers or agents and in one or more transactions at market prices prevailing at the time of sale or at negotiated prices.
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus or any prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.
The date of this prospectus supplement is July 12, 2005.