| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Feb 26, 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 | 2,480 | $74.42 | 3,419 | |
| Feb 26, 2007 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,000 | -- | -- | |
| Feb 26, 2007 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,000 | -- | -- | |
| Feb 26, 2007 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,000 | $42.56 | 13,520 | |
| Feb 26, 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 | 1,725 | $74.42 | 11,805 | |
| Feb 26, 2007 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,000 | -- | -- | |
| Feb 26, 2007 | Director | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,000 | $42.56 | 13,520 | |
| Feb 26, 2007 | Director | Form 4/A | 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 | 1,715 | $74.42 | 11,805 | |
| Feb 26, 2007 | Director | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,000 | -- | -- | |
| Feb 23, 2007 | Corp VP & Pres Mission Systems | Form 4 | Other acquisition or disposition | -- | -- | 5,401 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.