Description of Registrant's Common Stock

authorize our Board of Directors to establish one or more series or classes of undesignated preferred stock, the terms of which can be determined by the Board of Directors at the time of issuance;

do not authorize cumulative voting;

provide that only a majority of our Board of Directors may call a special meeting of the stockholders;

allow our directors to fill any vacancies on our Board of Directors, including vacancies resulting from a Board of Directors resolution to increase the number of directors;

generally require the vote of 80% of stockholders to approve any merger or consolidation, the sale of all or a substantial portion of our assets, the issuance of our stock or other securities or any reverse stock split or exchange of assets for our stock, in each case to or involving any holder of more than 10% of our stock, unless approved by our Board of Directors;

limit eligibility of stockholders who can include director nominees in our proxy materials for an annual meeting of stockholders to those stockholders, or groups of up to twenty stockholders, who have maintained continuous qualifying ownership of 3% or more of our outstanding Common Stock for at least the previous three years prior to and including the date of notice of such nomination, and the number of such stockholder nominees to the greater of two or 20% of the total number of Board of Directors on the last day a notice of nomination may be submitted;

provide an advance written notice procedure with respect to stockholder nominations of persons for election as directors or other business;

provide that any election or other action by our stockholders must be effected at an annual or special meeting of stockholders, and may not be effected by written consent without a meeting; and

require that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware, to the fullest extent permitted by law, be the sole and exclusive forum for (1) any derivative action or proceeding brought on our behalf, (2) any action asserting a claim of breach of a fiduciary duty owed by any of our current or former directors, officers, other employees or stockholders to us or our stockholders, (3) any action asserting a claim arising pursuant to any provision of the General Corporation Law of the State of Delaware, the Certificate of Incorporation or the By-laws or as to which the General Corporation Law of the State of Delaware confers jurisdiction on the Court of Chancery of the State of Delaware, or (4) any action asserting a claim governed by the internal affairs doctrine.

before that time, the Board of Directors of the corporation approved either the business combination or the transaction which resulted in the stockholder becoming an interested stockholder;

upon consummation of the transaction which resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the number of shares outstanding those shares owned by persons who are directors and also officers and by employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or

at or after that time, the business combination is approved by the Board of Directors and authorized at an annual or special meeting of stockholders, and not by written consent, by the affirmative vote of at least 66 2/3% of the outstanding voting stock that is not owned by the interested stockholder.

any merger or consolidation of the corporation with the interested stockholder;

any sale, lease, exchange, mortgage, transfer, pledge or other disposition of 10% or more of the assets or outstanding stock of the corporation involving the interested stockholder;

subject to specified exceptions, any transaction that results in the issuance or transfer by the corporation of any stock of the corporation to the interested stockholder;

any transaction involving the corporation that has the effect of increasing the proportionate share of the stock of any class or series of the corporation beneficially owned by the interested stockholder; or

any receipt by the interested stockholder of the benefit of any loans, advances, guarantees, pledges or other financial benefits provided by or through the corporation.