CUSIP: 982526105 Class: COMMON STOCK
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2008 | 3,200 | $254 | — | — |
| Q2 2008 | 3,200 | $249 | — | — |
| Q1 2008 | 1,800 | $113 | — | — |
| Q4 2007 | 1,800 | $105 | — | — |
| Q3 2007 | 1,800 | $116 | — | — |
| Q2 2007 | 1,800 | $100 | — | — |
| Q1 2007 | 1,800 | $92 | — | — |
| Q4 2006 | 1,800 | $93 | — | — |