| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4 | Open market or private sale of non-derivative or derivative security | 100 | $65.32 | 42,100 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4 | Open market or private sale of non-derivative or derivative security | 800 | $65.33 | 41,300 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4 | Open market or private sale of non-derivative or derivative security | 600 | $65.34 | 40,700 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4 | Open market or private sale of non-derivative or derivative security | 700 | $65.35 | 40,000 | |
| Feb 21, 2006 | Corp. VP & Secretary | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 1,879 | $51.95 | 67,062 | |
| Feb 21, 2006 | Corp. VP & Secretary | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,050 | $52.48 | 69,112 | |
| Feb 21, 2006 | Corp. VP & Secretary | 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 | 21,164 | $65.30 | 47,948 | |
| Feb 21, 2006 | Corp. VP & Secretary | 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 | 2,137 | $65.30 | 45,811 | |
| Feb 21, 2006 | Corp. VP & Secretary | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 1,879 | $51.95 | -- | |
| Feb 21, 2006 | Corp. VP & Secretary | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 1,631 | $65.30 | 1,631 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.