| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Feb 19, 2014 | Director, Chairman, CEO and President | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 107,189 | -- | 257,344 | |
| Feb 15, 2012 | Director, Chmn., CEO and Pres. | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 102,546 | -- | 289,892 | |
| Feb 21, 2014 | Corp. VP & CFO | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 100,704 | $121.45 | 257,558 | |
| Feb 27, 2013 | Director, Chairman, CEO and President | Form 4 | Other acquisition or disposition (describe transaction) | 100,359 | -- | -- | |
| Feb 27, 2013 | Director, Chairman, CEO and President | Form 4 | Other acquisition or disposition (describe transaction) | 100,359 | -- | 323,585 | |
| Feb 17, 2009 | Director, Chief Executive Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 100,300 | $44.99 | 483,941 | |
| Feb 14, 2012 | Director, Chmn., CEO and Pres. | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 100,188 | $60.21 | 354,949 | |
| Mar 02, 2005 | Director, CEO & President | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 100,000 | $53.60 | 373,092 | |
| Aug 20, 2003 | Director, Chief Executive Officer | Form 4/A | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 100,000 | $94.22 | 100,000 | |
| Feb 17, 2009 | Corp VP & Pres Technical Servs | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 98,050 | $44.99 | 98,050 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.