CUSIP: 983919101 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2014 | 3,820 | $165 | — | — |
| Q3 2014 | 3,220 | $136 | — | — |
| Q2 2014 | 3,360 | $159 | — | — |
| Q1 2014 | 3,360 | $182 | — | — |
| Q4 2013 | 3,410 | $157 | — | — |
| Q3 2013 | 3,410 | $160 | — | — |