CUSIP: 984332106 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2015 | 28,221 | $1,109 | — | — |
| Q1 2015 | 29,691 | $1,319 | — | — |
| Q4 2014 | 29,866 | $1,509 | — | — |
| Q3 2014 | 30,328 | $1,236 | — | — |
| Q2 2014 | 29,445 | $1,034 | — | — |
| Q1 2014 | 33,160 | $1,190 | — | — |
| Q4 2013 | 34,790 | $1,407 | — | — |
| Q3 2013 | 34,090 | $1,131 | — | — |
| Q2 2013 | 50,850 | $1,278 | — | — |