| 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 | 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 & Pres. Space Tech. | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,000 | $46.09 | 54,820 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 4,000 | $53.10 | 58,820 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4/A | Open market or private sale of non-derivative or derivative security | 2,800 | $65.18 | 56,020 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4/A | Open market or private sale of non-derivative or derivative security | 2,200 | $65.21 | 53,820 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4/A | Open market or private sale of non-derivative or derivative security | 200 | $65.22 | 53,620 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4/A | Open market or private sale of non-derivative or derivative security | 3,500 | $65.23 | 50,120 | |
| Feb 21, 2006 | Corp. VP & Pres. Space Tech. | Form 4/A | Open market or private sale of non-derivative or derivative security | 200 | $65.26 | 49,920 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.