CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2014 | 14,387 | $190 | — | — |
| Q2 2014 | 15,389 | $191 | — | — |
| Q1 2014 | 17,504 | $198 | — | — |
| Q4 2013 | 17,604 | $214 | — | — |
| Q3 2013 | 16,129 | $166 | — | — |
| Q2 2013 | 17,529 | $159 | — | — |