| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Aug 20, 2003 | Director, Chief Executive Officer | Form 4/A | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 100,000 | $94.22 | 100,000 | |
| Aug 20, 2003 | Corp. VP & Pres., Mission Sys. | Form 4/A | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 10,000 | $94.22 | 25,237 | |
| Aug 20, 2003 | Corp. VP & Pres., Mission Sys. | Form 4/A | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 20,000 | $94.22 | 20,000 | |
| May 27, 2003 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 1,500 | $43.98 | 1,500 | |
| May 20, 2002 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 1,500 | $61.52 | 1,500 | |
| May 21, 2001 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 1,500 | $44.75 | 1,500 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.