CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 12,632,535 | $92,637 | — | — |
| Q4 2016 | 10,751,355 | $81,821 | — | — |
| Q3 2016 | 9,722,236 | $98,366 | — | — |
| Q2 2016 | 9,736,620 | $92,273 | — | — |
| Q1 2016 | 9,516,399 | $106,030 | — | — |
| Q4 2015 | 9,297,015 | $98,656 | — | — |
| Q3 2015 | 9,730,578 | $94,523 | — | — |
| Q2 2015 | 9,725,578 | $103,306 | — | — |
| Q1 2015 | 8,642,194 | $110,888 | — | — |
| Q4 2014 | 8,455,745 | $117,050 | — | — |
| Q3 2014 | 8,524,720 | $112,646 | — | — |
| Q2 2014 | 8,277,913 | $102,916 | — | — |
| Q1 2014 | 8,664,368 | $97,867 | — | — |
| Q4 2013 | 8,942,154 | $108,795 | — | — |
| Q3 2013 | 8,414,251 | $86,562 | — | — |
| Q2 2013 | 8,330,910 | $75,546 | — | — |