CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2014 | 12,518 | $173 | — | — |
| Q3 2014 | 13,518 | $179 | — | — |
| Q2 2014 | 14,673 | $183 | — | — |
| Q1 2014 | 20,744 | $234 | — | — |
| Q4 2013 | 19,610 | $239 | — | — |
| Q3 2013 | 19,551 | $201 | — | — |
| Q2 2013 | 19,593 | $178 | — | — |