CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 12,918,339 | $94,821 | — | — |
| Q4 2016 | 16,199,342 | $141,421 | — | — |
| Q3 2016 | 13,644,388 | $138,218 | — | — |
| Q2 2016 | 12,424,669 | $117,911 | — | — |
| Q1 2016 | 10,861,311 | $121,212 | — | — |
| Q4 2015 | 12,969,130 | $137,862 | — | — |
| Q3 2015 | 9,197,174 | $89,489 | — | — |
| Q2 2015 | 7,166,472 | $76,251 | — | — |
| Q1 2015 | 5,198,714 | $66,803 | — | — |
| Q4 2014 | 3,406,456 | $47,213 | — | — |
| Q3 2014 | 3,027,686 | $40,056 | — | — |
| Q2 2014 | 3,842,976 | $47,807 | — | — |
| Q1 2014 | 4,344,376 | $49,091 | — | — |
| Q4 2013 | 5,456,756 | $66,409 | — | — |
| Q3 2013 | 5,587,651 | $57,497 | — | — |
| Q2 2013 | 6,113,200 | $55,447 | — | — |
| Q4 2012 | 1,131,820 | $7,719 | — | — |