CUSIP: 983024100 Class: COMMON STOCK
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2009 | 23,500 | $1,142 | — | — |
| Q2 2009 | 21,600 | $980 | — | — |
| Q4 2008 | 18,400 | $690 | — | — |
| Q3 2008 | 14,600 | $539 | — | — |
| Q2 2008 | 18,100 | $868 | — | — |
| Q1 2008 | 12,900 | $539 | — | — |
| Q4 2007 | 12,900 | $570 | — | — |
| Q3 2007 | 11,100 | $495 | — | — |
| Q2 2007 | 11,100 | $636 | — | — |
| Q1 2007 | 11,100 | $555 | — | — |
| Q4 2006 | 11,100 | $565 | — | — |