| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Feb 23, 2007 | Pres. & Chf. Financial Officer | Form 4 | Other acquisition or disposition | -- | -- | 40,998 | |
| Feb 23, 2007 | Pres. & Chf. Financial Officer | Form 4 | Other acquisition or disposition | -- | -- | 4,219 | |
| Feb 23, 2007 | Corp. VP & Pres. Newport News | Form 4 | Other acquisition or disposition | -- | -- | 947 | |
| Feb 23, 2007 | Corp. VP & Treasurer | Form 4 | Other acquisition or disposition | -- | -- | 2,280 | |
| Feb 23, 2007 | Corp. VP & Treasurer | Form 4 | Other acquisition or disposition | -- | -- | 6,646 | |
| Feb 23, 2007 | Corp.VP & Pres.Integrated Sys. | Form 4 | Other acquisition or disposition | -- | -- | 1,125 | |
| Feb 23, 2007 | Director, Chief Executive Officer | Form 4 | Other acquisition or disposition | -- | -- | 190,288 | |
| Feb 23, 2007 | Corp. VP & General Counsel | Form 4 | Other acquisition or disposition | -- | -- | 3,568 | |
| Feb 23, 2007 | Corp VP & Chf HR & Adm Ofcr | Form 4 | Other acquisition or disposition | -- | -- | 2,567 | |
| Feb 21, 2007 | Corp VP & Pres Mission Systems | Form 4 | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 4,033 | $75.29 | 45,289 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.