| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Nov 11, 2005 | Corporate Vice President | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 11,250 | $52.48 | 111,250 | |
| Nov 11, 2005 | Corporate Vice President | Form 4 | Open market or private sale of non-derivative or derivative security | 100 | $55.54 | 111,150 | |
| Nov 11, 2005 | Corporate Vice President | Form 4 | Open market or private sale of non-derivative or derivative security | 6,600 | $55.50 | 104,550 | |
| Nov 11, 2005 | Corporate Vice President | Form 4 | Open market or private sale of non-derivative or derivative security | 14,550 | $55.51 | 90,000 | |
| Nov 11, 2005 | Corporate Vice President | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 10,000 | $47.11 | 20,000 | |
| Nov 11, 2005 | Corporate Vice President | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 11,250 | $52.48 | 33,750 | |
| Nov 07, 2005 | Corporate Vice President | Form 4 | Open market or private sale of non-derivative or derivative security | 14,474 | $55.20 | 90,000 | |
| Aug 05, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 10,000 | $47.11 | 114,474 | |
| Aug 05, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 15,000 | $47.18 | 129,474 | |
| Aug 05, 2005 | Corp. VP & Pres., Mission Sys. | Form 4 | Open market or private sale of non-derivative or derivative security | 4,000 | $55.53 | 125,474 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.