Common Stock

Preferred Stock

Debt Securities

We may offer from time to time, in one or more offerings, common stock, par value $0.01 per share, preferred stock, par value $0.01 per share, debt securities or any combination thereof. The debt securities and preferred stock may be convertible into or exercisable or exchangeable for common or preferred stock or other securities of our company. In addition, this prospectus covers resales of shares of our common stock or other securities beneficially owned by one or more selling security holders. We refer to our common stock, preferred stock and debt securities collectively as the "securities."

This prospectus may not be used to sell securities unless accompanied by a prospectus supplement, which will describe the method and terms of the related offering. The specific terms of any securities to be offered for sale or resale, including the specific manner in which the securities will be offered and the identity of any selling security holders, will be described in one or more supplements to this prospectus, one or more post-effective amendments to the registration statement of which this prospectus is a part or in documents incorporated by reference into this prospectus. We urge you to carefully read this prospectus and the applicable prospectus supplement or any related free writing prospectus, as well as the documents incorporated by reference herein or therein, before you make your investment decision.