CUSIP: 983919101 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2015 | 2,063,934 | $87,511 | — | — |
| Q2 2015 | 2,094,313 | $92,485 | — | — |
| Q1 2015 | 2,970,893 | $125,664 | — | — |
| Q4 2014 | 2,412,488 | $104,437 | — | — |
| Q3 2014 | 3,315,394 | $140,407 | — | — |
| Q2 2014 | 2,901,527 | $137,271 | — | — |
| Q1 2014 | 2,883,370 | $156,480 | — | — |
| Q4 2013 | 2,858,349 | $131,255 | — | — |
| Q3 2013 | 2,825,418 | $132,399 | — | — |
| Q2 2013 | 1,713,115 | $67,856 | — | — |