| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Feb 16, 2010 | Corp VP & Pres, Electron. Sys. | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 31,600 | $59.56 | 68,878 | |
| Nov 18, 2014 | Corp. VP, Operations | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 32,000 | $63.22 | 32,000 | |
| Nov 18, 2014 | Corp. VP, Operations | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 32,000 | -- | 32,544 | |
| Feb 28, 2007 | Pres. & Chf. Financial Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 32,000 | $71.85 | 170,475 | |
| Feb 28, 2007 | Corp VP & Pres Technical Servs | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 32,000 | $71.85 | 32,000 | |
| Feb 28, 2007 | Corp. VP & Pres. Space Tech. | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 32,000 | $71.85 | 32,000 | |
| Feb 28, 2007 | Corp. VP & Pres. Ship Systems | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 32,000 | $71.85 | 32,000 | |
| Feb 15, 2006 | Corp.VP, Government Relations | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 32,000 | $65.10 | 32,000 | |
| Feb 15, 2006 | Corp VP & Chf HR & Adm Ofcr | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 32,000 | $65.10 | 32,000 | |
| Feb 18, 2015 | Corp. VP & CFO | 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 | 32,101 | $167.68 | 264,091 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.