| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Oct 29, 2007 | Corp VP & Pres Mission Systems | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,144 | $49.85 | 70,767 | |
| Oct 29, 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 | 1,654 | $82.47 | 69,113 | |
| Oct 29, 2007 | Corp VP & Pres Mission Systems | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,144 | -- | -- | |
| Oct 29, 2007 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 57,140 | $49.85 | 62,179 | |
| Oct 29, 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 | 34,539 | $82.47 | 27,640 | |
| Oct 29, 2007 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 57,140 | -- | -- | |
| Sep 28, 2007 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 731 | $78.00 | 10,451 | |
| Sep 28, 2007 | Director | Form 4 | Other acquisition or disposition | -- | -- | 5,884 | |
| Sep 28, 2007 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 734 | $78.00 | 12,201 | |
| Sep 28, 2007 | Director | Form 4 | Other acquisition or disposition | -- | -- | 3,419 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.