CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 23,917,599 | $175,555 | — | — |
| Q4 2016 | 24,372,855 | $212,775 | — | — |
| Q3 2016 | 25,496,112 | $258,275 | — | — |
| Q2 2016 | 25,668,288 | $243,592 | — | — |
| Q1 2016 | 25,868,427 | $288,691 | — | — |
| Q4 2015 | 24,209,379 | $257,345 | — | — |
| Q3 2015 | 23,975,757 | $233,284 | — | — |
| Q2 2015 | 24,306,787 | $258,624 | — | — |
| Q1 2015 | 24,645,167 | $316,690 | — | — |
| Q4 2014 | 24,369,463 | $337,760 | — | — |
| Q3 2014 | 23,711,267 | $313,700 | — | — |
| Q2 2014 | 22,828,238 | $283,983 | — | — |
| Q1 2014 | 22,775,158 | $257,359 | — | — |
| Q4 2013 | 22,719,053 | $276,490 | — | — |
| Q3 2013 | 22,530,171 | $231,835 | — | — |
| Q2 2013 | 21,720,471 | $197,004 | — | — |