CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 79,822 | $586 | — | — |
| Q4 2016 | 80,461 | $702 | — | — |
| Q3 2016 | 82,057 | $831 | — | — |
| Q2 2016 | 69,688 | $661 | — | — |
| Q1 2016 | 67,308 | $747 | — | — |
| Q4 2015 | 62,070 | $660 | — | — |
| Q3 2015 | 61,207 | $596 | — | — |
| Q2 2015 | 56,698 | $603 | — | — |
| Q1 2015 | 51,658 | $664 | — | — |
| Q4 2014 | 51,658 | $716 | — | — |