| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| 12/13/10 |
Chief Operating Officer
|
Chief Operating Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 27,000 | -- | 190,000 |
| 12/28/09 |
Chief Operating Officer
|
Chief Operating Officer | Form 4 | Open market or private sale of non-derivative or derivative security | 4,252 | $43.29 | 162,998 |
| 12/28/09 |
Chief Operating Officer
|
Chief Operating Officer | Form 4/A | Open market or private sale of non-derivative or derivative security | 4,250 | $43.29 | 163,000 |
| 12/09/09 |
Chief Operating Officer
|
Chief Operating Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 33,000 | -- | 167,250 |
| 06/01/09 |
Chief Operating Officer
|
Chief Operating Officer | Form 4 | Open market or private sale of non-derivative or derivative security | 4,000 | $41.65 | 134,250 |
| 12/11/08 |
Chief Operating Officer
|
Chief Operating Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | -- | 138,250 |
| 06/02/08 |
Vice President of Operations
|
Vice President of Operations | Form 4 | Open market or private sale of non-derivative or derivative security | 7,500 | $59.17 | 108,250 |
| 12/10/07 |
Vice President of Operations
|
Vice President of Operations | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | $34.30 | 115,750 |
| 06/12/07 |
Vice President of Operations
|
Vice President of Operations | Form 4 | Open market or private sale of non-derivative or derivative security | 8,000 | $29.88 | 85,750 |
| 12/14/06 |
Vice President of Operations
|
Vice President of Operations | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 20,000 | -- | 93,750 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.