| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Feb 18, 2015 | CVP Chief Global Bus Dev Off | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 12,364 | -- | 24,608 | |
| Feb 18, 2015 | CVP Chief Global Bus Dev Off | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 12,364 | -- | 36,656 | |
| Mar 31, 2011 | Corp. VP & CFO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 12,413 | -- | 188,932 | |
| May 08, 2013 | Corp. VP & Pres Electronic Sys | Form 4 | Open market or private sale of non-derivative or derivative security | 12,451 | $77.27 | 23,708 | |
| Aug 17, 2011 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 12,475 | -- | -- | |
| Aug 17, 2011 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 12,475 | -- | 12,475 | |
| Feb 14, 2014 | Corp. VP, Operations | Form 4 | Discretionary transaction in accordance with Rule 16b-3(f) resulting in acquisition or disposition of issuer securities | 12,479 | $118.86 | -- | |
| Feb 19, 2008 | Corporate Vice President | 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 | 12,484 | $80.60 | 128,809 | |
| Feb 19, 2008 | Corporate Vice President | Form 4/A | 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 | 12,484 | $80.60 | 128,809 | |
| 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 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.