| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Mar 01, 2007 | Corp VP & Pres Mission Systems | Form 4 | Other acquisition or disposition | -- | -- | 5,401 | |
| 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 23, 2007 | Corp VP & Pres Mission Systems | Form 4 | Other acquisition or disposition | -- | -- | 5,401 | |
| Feb 21, 2007 | Corp VP & Pres Mission Systems | 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 | 4,033 | $75.29 | 45,289 | |
| Feb 21, 2007 | Corp VP & Pres Mission Systems | Form 4 | Other acquisition or disposition (describe transaction) | 3,334 | $75.29 | 48,623 | |
| May 24, 2006 | Corp VP & Pres Mission Systems | Form 4 | Other acquisition or disposition | -- | -- | 5,359 | |
| May 23, 2006 | Corp VP & Pres Mission Systems | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,144 | $46.79 | 49,322 | |
| May 23, 2006 | Corp VP & Pres Mission Systems | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,144 | $46.79 | -- | |
| Feb 27, 2006 | Corp VP & Pres Mission Systems | Form 4 | Open market or private sale of non-derivative or derivative security | 1,600 | $65.75 | 47,178 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.