| Transaction Date | Filer | Title | Filing | Transaction Type | Shares Traded | Price | Total Held* |
|---|---|---|---|---|---|---|---|
| May 16, 2018 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 483 | $321.16 | 1,375 | |
| Apr 05, 2018 | Corp VP & President AS Systems | Form 4 | Other acquisition or disposition | -- | -- | 6,223 | |
| Apr 04, 2018 | Corp VP & President AS Systems | Form 4 | Open market or private sale of non-derivative or derivative security | 955 | $338.85 | 7,632 | |
| Apr 01, 2018 | Corp VP & President AS Systems | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,789 | -- | 10,466 | |
| Apr 01, 2018 | Corp VP & President AS Systems | 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 | 1,879 | $345.52 | 8,587 | |
| Apr 01, 2018 | Corp VP & President AS Systems | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 3,789 | -- | 3,926 | |
| Mar 31, 2018 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 106 | $349.12 | 3,477 | |
| Mar 31, 2018 | Director | Form 4 | Other acquisition or disposition (describe transaction) | 170 | $349.12 | 29,503 | |
| Mar 02, 2018 | Corp VP & President AS Systems | Form 4 | Other acquisition or disposition | -- | -- | 6,204 | |
| Feb 28, 2018 | Corp VP & President AS Systems | Form 4 | Open market or private sale of non-derivative or derivative security | 1,568 | $354.30 | 6,677 |
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.