CUSIP: 976657106 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2015 | 15,648 | $704 | — | — |
| Q1 2015 | 15,425 | $764 | — | — |
| Q4 2014 | 21,193 | $1,118 | — | — |
| Q3 2014 | 21,383 | $919 | — | — |
| Q2 2014 | 21,367 | $1,003 | — | — |
| Q1 2014 | 21,116 | $983 | — | — |
| Q4 2013 | 21,522 | $890 | — | — |
| Q3 2013 | 21,522 | $869 | — | — |
| Q2 2013 | 21,522 | $882 | — | — |