CUSIP: 984332106 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 9,691,454 | $449,781 | — | — |
| Q4 2016 | 9,613,293 | $371,747 | — | — |
| Q3 2016 | 9,508,796 | $409,829 | — | — |
| Q2 2016 | 9,432,413 | $354,282 | — | — |
| Q1 2016 | 9,528,727 | $349,160 | — | — |
| Q4 2015 | 9,529,150 | $316,939 | — | — |
| Q3 2015 | 10,182,003 | $294,361 | — | — |
| Q2 2015 | 10,390,573 | $408,246 | — | — |
| Q1 2015 | 10,631,174 | $472,397 | — | — |
| Q4 2014 | 10,959,426 | $553,561 | — | — |
| Q3 2014 | 11,445,055 | $466,386 | — | — |
| Q2 2014 | 11,740,730 | $412,452 | — | — |
| Q1 2014 | 11,457,331 | $411,317 | — | — |
| Q4 2013 | 11,944,342 | $483,030 | — | — |
| Q3 2013 | 12,153,778 | $403,141 | — | — |
| Q2 2013 | 13,070,927 | $328,473 | — | — |