CUSIP: 97381W104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2013 | 394,276 | $3,040 | — | — |
| Q1 2013 | 450,445 | $3,572 | — | — |
| Q4 2012 | 413,083 | $3,420 | — | — |
| Q3 2012 | 386,212 | $3,897 | — | — |
| Q2 2012 | 377,130 | $3,643 | — | — |
| Q1 2012 | 377,130 | $4,414 | — | — |
| Q4 2011 | 362,665 | $4,258 | — | — |
| Q3 2011 | 459,594 | $5,354 | — | — |