| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Jun 30, 2006 | Director | Form 4 | Other acquisition or disposition | -- | -- | 2,995 | |
| Jun 30, 2006 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 435 | $64.06 | 1,072 | |
| Jun 30, 2006 | Director | Form 4 | Other acquisition or disposition | -- | -- | 3,093 | |
| May 24, 2006 | Corp VP & Pres Mission Systems | Form 4 | Other acquisition or disposition | -- | -- | 5,359 | |
| May 23, 2006 | Corp VP & Pres Mission Systems | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,144 | $46.79 | 49,322 | |
| May 23, 2006 | Corp VP & Pres Mission Systems | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,144 | $46.79 | -- | |
| May 18, 2006 | Pres. & Chf. Financial Officer | Form 4 | Other acquisition or disposition | -- | -- | 40,998 | |
| May 18, 2006 | Pres. & Chf. Financial Officer | Form 4 | Other acquisition or disposition | -- | -- | 4,232 | |
| May 18, 2006 | Corp.VP & Pres.Integrated Sys. | Form 4 | Other acquisition or disposition | -- | -- | 1,129 | |
| May 16, 2006 | Pres. & Chf. Financial Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 40,000 | $66.64 | 141,002 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.