| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Mar 01, 2007 | Corp. VP & General Counsel | Form 4 | Other acquisition or disposition | -- | -- | 3,568 | |
| Mar 01, 2007 | Corp VP & Chf HR & Adm Ofcr | Form 4 | Other acquisition or disposition | -- | -- | 2,567 | |
| Feb 28, 2007 | Corp VP & Pres Mission Systems | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 20,000 | $71.85 | 68,623 | |
| Feb 28, 2007 | Corp VP & Pres Mission Systems | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 40,000 | $71.85 | 40,000 | |
| Feb 28, 2007 | Pres. & Chf. Financial Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 32,000 | $71.85 | 170,475 | |
| Feb 28, 2007 | Pres. & Chf. Financial Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 64,000 | $71.85 | 64,000 | |
| Feb 28, 2007 | Corp VP & Pres Technical Servs | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 16,000 | $71.85 | 52,264 | |
| Feb 28, 2007 | Corp VP & Pres Technical Servs | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 32,000 | $71.85 | 32,000 | |
| Feb 28, 2007 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,000 | $42.56 | 13,205 | |
| Feb 28, 2007 | Director | 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 | 1,775 | $71.91 | 11,430 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.