CUSIP: 97381W104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2013 | 238,939 | $1,842 | — | — |
| Q1 2013 | 259,189 | $2,056 | — | — |
| Q4 2012 | 257,086 | $2,129 | — | — |
| Q3 2012 | 282,227 | $2,847 | — | — |
| Q2 2012 | 284,654 | $2,750 | — | — |
| Q1 2012 | 192,787 | $2,257 | — | — |
| Q4 2011 | 148,132 | $1,739 | — | — |
| Q3 2011 | 121,270 | $1,412 | — | — |
| Q2 2011 | 123,370 | $1,599 | — | — |
| Q1 2011 | 125,058 | $1,611 | — | — |
| Q4 2010 | 121,990 | $1,700 | — | — |
| Q3 2010 | 119,062 | $1,463 | — | — |
| Q2 2010 | 129,533 | $1,368 | — | — |
| Q1 2010 | 134,159 | $1,461 | — | — |
| Q4 2009 | 182,133 | $2,002 | — | — |
| Q3 2009 | 178,375 | $1,807 | — | — |
| Q2 2009 | 150,859 | $1,261 | — | — |
| Q1 2009 | 122,497 | $987 | — | — |