CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2016 | 17,998 | $109 | — | — |
| Q3 2015 | 15,057 | $147 | — | — |
| Q2 2015 | 12,766 | $136 | — | — |
| Q1 2015 | 12,202 | $157 | — | — |
| Q4 2014 | 10,789 | $150 | — | — |
| Q3 2014 | 10,259 | $136 | — | — |