| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| May 31, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Open market or private sale of non-derivative or derivative security | 1,672 | $55.60 | 118,404 | |
| May 31, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Open market or private sale of non-derivative or derivative security | 5,600 | $55.61 | 112,804 | |
| May 31, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Open market or private sale of non-derivative or derivative security | 8,200 | $55.63 | 104,604 | |
| May 31, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Open market or private sale of non-derivative or derivative security | 130 | $55.69 | 104,474 | |
| May 31, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 16,072 | $49.85 | -- | |
| May 31, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 16,072 | $46.67 | -- | |
| May 31, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 13,930 | $46.79 | -- | |
| May 26, 2005 | Corp. VP & Pres. Ship Systems | Form 4 | Open market or private sale of non-derivative or derivative security | 442 | $55.43 | 76,993 | |
| May 26, 2005 | Corp. VP & Pres. Ship Systems | Form 4 | Open market or private sale of non-derivative or derivative security | 1,400 | $55.40 | 75,593 | |
| May 26, 2005 | Corp. VP & Pres., Info. Tech. | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 13,500 | $54.38 | 65,960 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.