CUSIP: 988858106 Class: COMMON STOCK
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2014 | 32,626 | $682 | — | — |
| Q4 2013 | 34,562 | $545 | — | — |
| Q3 2013 | 34,429 | $523 | — | — |
| Q2 2013 | 29,532 | $269 | — | — |
| Q1 2013 | 29,483 | $116 | — | — |