Date Filer Title Filing Type Shares Traded Price Total Held
May 31, 2007
Director
Director Form 4 Other acquisition or disposition -- -- 34,500
May 31, 2007
Director
Director Form 4 Other acquisition or disposition -- -- 168,733
May 29, 2007
Director
Director Form 4 Open market or private sale of non-derivative or derivative security 11,250 $63.00 442,978
May 25, 2007
Vice President, Finance
Vice President, Finance Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 6,000 $11.16 14,689
May 25, 2007
Vice President, Finance
Vice President, Finance Form 4 Open market or private sale of non-derivative or derivative security 6,000 $62.70 8,689
May 25, 2007
Vice President, Finance
Vice President, Finance Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 6,000 -- 9,675
May 24, 2007
Director, President and CEO
Director, President and CEO Form 4 Other acquisition or disposition -- -- 270,193
May 22, 2007
Director, President and CEO
Director, President and CEO Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 9,000 $11.16 124,280
May 22, 2007
Director, President and CEO
Director, President and CEO Form 4 Open market or private sale of non-derivative or derivative security 9,000 $60.87 115,280
May 22, 2007
Director, President and CEO
Director, President and CEO Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 9,000 -- 130,089

* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.