CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 12,432,676 | $91,256 | — | — |
| Q4 2016 | 12,519,867 | $109,299 | — | — |
| Q3 2016 | 12,574,088 | $127,376 | — | — |
| Q2 2016 | 14,417,662 | $136,823 | — | — |
| Q1 2016 | 17,690,588 | $197,427 | — | — |
| Q4 2015 | 18,735,352 | $199,158 | — | — |
| Q3 2015 | 18,025,935 | $175,392 | — | — |
| Q2 2015 | 17,611,899 | $187,391 | — | — |
| Q1 2015 | 15,969,705 | $205,211 | — | — |
| Q4 2014 | 17,091,749 | $236,891 | — | — |
| Q3 2014 | 17,726,927 | $234,528 | — | — |
| Q2 2014 | 31,826,886 | $395,926 | — | — |
| Q1 2014 | 30,711,701 | $347,042 | — | — |
| Q4 2013 | 18,591,055 | $226,253 | — | — |
| Q3 2013 | 32,189,610 | $331,231 | — | — |
| Q2 2013 | 31,644,757 | $287,017 | — | — |