CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2014 | 10,632 | $147 | — | — |
| Q3 2014 | 10,632 | $141 | — | — |
| Q2 2014 | 29,254 | $364 | — | — |
| Q1 2014 | 10,854 | $123 | — | — |
| Q4 2013 | 10,854 | $132 | — | — |
| Q3 2013 | 39,898 | $411 | — | — |
| Q2 2013 | 48,972 | $444 | — | — |