CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2015 | 48,321 | $471 | — | — |
| Q2 2015 | 32,900 | $350 | — | — |
| Q3 2014 | 61,786 | $817 | — | — |
| Q2 2014 | 69,593 | $866 | — | — |
| Q1 2014 | 67,950 | $767 | — | — |
| Q4 2013 | 62,864 | $765 | — | — |
| Q3 2013 | 35,744 | $368 | — | — |