CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2016 | 14,100 | $143 | — | — |
| Q2 2016 | 14,100 | $134 | — | — |
| Q1 2016 | 38,700 | $432 | — | — |
| Q4 2015 | 14,600 | $155 | — | — |
| Q3 2015 | 23,200 | $226 | — | — |
| Q1 2015 | 19,400 | $249 | — | — |
| Q3 2014 | 18,400 | $243 | — | — |
| Q2 2014 | 41,300 | $514 | — | — |
| Q4 2013 | 24,500 | $298 | — | — |