CUSIP: 989774104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2015 | 3,909,981 | $68,034 | — | — |
| Q2 2015 | 4,403,622 | $57,423 | — | — |
| Q1 2015 | 5,352,141 | $69,524 | — | — |
| Q4 2014 | 5,378,237 | $125,851 | — | — |
| Q3 2014 | 4,211,283 | $159,566 | — | — |
| Q2 2014 | 4,115,244 | $168,519 | — | — |
| Q1 2014 | 3,943,291 | $188,169 | — | — |
| Q4 2013 | 1,004,500 | $41,616 | — | — |