| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| Feb 13, 2018 | Corp VP, Controller & CAO | 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 | 1,095 | -- | 11,584 | |
| Feb 13, 2018 | Corp VP, Controller & CAO | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,128 | -- | 5,472 | |
| Feb 13, 2018 | Corp VP & Pres Tech Svcs | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 16,275 | -- | 74,461 | |
| Feb 13, 2018 | Corp VP & Pres Tech Svcs | 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 | 7,228 | -- | 67,233 | |
| Feb 13, 2018 | Corp VP & Pres Tech Svcs | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 16,275 | -- | 26,012 | |
| Feb 13, 2018 | Corp VP, Government Relations | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,530 | -- | 15,120 | |
| Feb 13, 2018 | Corp VP, Government Relations | 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 | 853 | -- | 14,267 | |
| Feb 13, 2018 | Corp VP, Government Relations | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 2,530 | -- | 6,977 | |
| Feb 13, 2018 | Corp VP & President AS Systems | Form 4/A | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 6,037 | -- | 16,079 | |
| Feb 13, 2018 | Corp VP & President AS Systems | 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 | 2,900 | -- | 10,622 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.