| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Sep 04, 2018 | Director, Chairman and CEO | Form 4 | Other acquisition or disposition | -- | -- | 5,609 | |
| Sep 04, 2018 | Director, Chairman and CEO | Form 4 | Other acquisition or disposition | -- | -- | 239,059 | |
| Sep 04, 2018 | Corp VP & Pres, Mission System | Form 4 | Other acquisition or disposition | -- | -- | 35 | |
| Aug 30, 2018 | Director, Chairman and CEO | Form 4 | Other acquisition or disposition (describe transaction) | 5,000 | -- | 5,000 | |
| Aug 30, 2018 | Director, Chairman and CEO | Form 4 | Other acquisition or disposition (describe transaction) | 5,000 | -- | 10,000 | |
| Aug 30, 2018 | Director, Chairman and CEO | Form 4 | Other acquisition or disposition (describe transaction) | 5,000 | -- | 80,551 | |
| Aug 30, 2018 | Director, Chairman and CEO | Form 4 | Bona fide gift | 25,000 | -- | 55,551 | |
| Aug 30, 2018 | Director, Chairman and CEO | Form 4 | Other acquisition or disposition (describe transaction) | 5,000 | -- | 80,549 | |
| Aug 30, 2018 | Director, Chairman and CEO | Form 4 | Bona fide gift | 25,000 | -- | 55,549 | |
| Aug 30, 2018 | Corp VP & Pres, Mission System | Form 4 | Open market or private sale of non-derivative or derivative security | 1,300 | $298.32 | 24,592 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.