| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Jan 29, 2008 | Pres. & Chf. Operating Officer | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 4,286 | $78.72 | 157,286 | |
| Jan 29, 2008 | Pres. & Chf. Operating Officer | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 4,286 | $49.85 | -- | |
| Jan 25, 2008 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 1,688 | $78.07 | 9,465 | |
| Jan 25, 2008 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 1,688 | $78.07 | 7,572 | |
| Jan 15, 2008 | Corp. VP & Pres. Newport News | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 12,500 | $81.10 | 87,392 | |
| Jan 15, 2008 | Corp. VP & Pres. Ship Systems | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 12,500 | $81.10 | 90,544 | |
| Jan 02, 2008 | Director | Form 4 | Other acquisition or disposition | -- | -- | 5,884 | |
| Jan 02, 2008 | Director | Form 4 | Other acquisition or disposition | -- | -- | 3,419 | |
| Jan 02, 2008 | Director | Form 4 | Other acquisition or disposition | -- | -- | 1,000 | |
| Jan 02, 2008 | Director | Form 4 | Other acquisition or disposition | -- | -- | 41,922 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.