CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2014 | 5,521,800 | $76,532 | — | — |
| Q3 2014 | 4,827,700 | $63,870 | — | — |
| Q2 2014 | 3,126,387 | $38,892 | — | — |
| Q1 2014 | 3,988,087 | $45,065 | — | — |
| Q4 2013 | 3,899,087 | $47,452 | — | — |