Prospectus
Supplement No. 5
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Filed
Pursuant to Rule 424(b)(7)
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(To
Prospectus dated April 18, 2006)
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Registration
Statement No. 333-133353
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Selling
Stockholder
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Number
of
Shares
Beneficially Owned Prior to the Offering (1)(2)
|
Percentage
of
Shares Beneficially Owned Prior to the Offering (3) |
Number
of Shares
Offered Pursuant to this Prospectus Supplement (1)(2) |
Number
of
Shares Beneficially Owned After
the
Offering (4) |
Percentage
of
Outstanding Common Stock Beneficially Owned Following the Offering (3) |
Argent
LowLev
Convertible Arbitrage Fund II, LLC (5) |
1,444
|
*
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1,444
|
0
|
*
|
JP
Morgan Securities
Inc. (6) |
289,897
|
*
|
289,897
|
28
|
*
|
Xavex
Convertible
Arbitrage 2 Fund (5) |
24,552
|
*
|
24,552
|
0
|
*
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(1)
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Based
on information available to us as of April 28, 2008. The sum of
the number of shares beneficially owned by the selling stockholders named
in this table and named in the table in the prospectus supplements dated
August 23, 2007, September 11, 2007, October 30, 2007 and March 17, 2008,
exceeds 6,499,134 shares of common stock (the total number of shares
offered pursuant to the prospectus supplements) because certain selling
stockholders may have transferred notes or otherwise reduced their
position prior to selling pursuant to this prospectus supplement, and as a
result we received beneficial ownership information from additional
selling stockholders. However, the maximum number of shares of
common stock that may be sold pursuant to the prospectus supplements will
not exceed 6,499,134 shares.
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(2)
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The
number of shares of common stock issuable upon the exchange or redemption
of the notes assumes exchange of the full amount of notes held by each
selling stockholder at the initial exchange rate of 36.1063 shares of our
common stock per $1,000 principal amount of notes and a cash payment in
lieu of any fractional shares. The exchange rate is subject to
adjustment in certain events.
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(3)
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Based
on a total of 74,400,213 shares of our common stock outstanding as of
April 28, 2008.
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(4)
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Assuming
the selling stockholder sells all of its shares offered pursuant to this
prospectus supplement.
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(5)
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Guy
Caplan exercises voting and/or dispositive power with respect to these
securities.
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(6)
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The
selling stockholder is a registered broker-dealer. The selling
stockholder is an affiliate of JP Morgan Chase (parent company) and
certifies that it purchased the securities in the ordinary course of
business, and that at the time of the purchase of the securities to be
resold, it had no agreements or understandings, directly or indirectly,
with any person to distribute the
securities.
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