CUSIP: 984332106 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2015 | 10,901 | $484 | — | — |
| Q4 2014 | 31,127 | $1,572 | — | — |
| Q1 2014 | 60,008 | $2,069 | — | — |
| Q4 2013 | 113,001 | $4,141 | — | — |
| Q3 2013 | 104,265 | $3,458 | — | — |
| Q2 2013 | 53,511 | $1,345 | — | — |