| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| May 20, 2005 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 3,000 | $55.28 | 3,000 | |
| May 20, 2005 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 3,000 | $55.28 | 3,000 | |
| May 19, 2005 | Corp. VP, Strategy & Tech. | Form 4 | Open market or private sale of non-derivative or derivative security | 100 | $54.27 | 34,148 | |
| May 19, 2005 | Corp. VP, Strategy & Tech. | Form 4 | Open market or private sale of non-derivative or derivative security | 14,900 | $54.25 | 19,248 | |
| May 19, 2005 | Corp. VP, Strategy & Tech. | Form 4 | Other acquisition or disposition | -- | -- | 3,590 | |
| May 05, 2005 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 500 | $55.44 | 500 | |
| May 04, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Discretionary transaction in accordance with Rule 16b-3(f) resulting in acquisition or disposition of issuer securities | 3,728 | $55.50 | -- | |
| May 03, 2005 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 1,000 | $25.63 | 5,978 | |
| May 03, 2005 | Director | Form 4 | Open market or private sale of non-derivative or derivative security | 200 | $55.45 | 5,778 | |
| May 03, 2005 | Director | Form 4 | Open market or private sale of non-derivative or derivative security | 200 | $55.44 | 5,578 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.