CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2015 | 25,100 | $323 | — | — |
| Q4 2014 | 26,600 | $369 | — | — |
| Q3 2014 | 26,000 | $344 | — | — |
| Q2 2014 | 23,000 | $286 | — | — |
| Q1 2014 | 23,000 | $260 | — | — |
| Q4 2013 | 25,650 | $312 | — | — |
| Q3 2013 | 24,300 | $250 | — | — |
| Q2 2013 | 17,800 | $161 | — | — |