CUSIP: 988858106 Class: COMMON STOCK
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2014 | 2,790,901 | $58,358 | — | — |
| Q4 2013 | 2,783,150 | $43,891 | — | — |
| Q3 2013 | 2,760,850 | $41,965 | — | — |
| Q2 2013 | 2,686,950 | $24,451 | — | — |