CUSIP: 988858106 Class: COMMON STOCK
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2014 | 23,062 | $482 | — | — |
| Q4 2013 | 26,162 | $412 | — | — |
| Q3 2013 | 28,962 | $440 | — | — |
| Q2 2013 | 23,462 | $213 | — | — |
| Q1 2013 | 23,362 | $91 | — | — |