CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 2,870,208 | $21,067,327 | — | — |
| Q4 2016 | 4,666,950 | $40,743 | — | — |
| Q3 2016 | 4,235,005 | $42,901 | — | — |
| Q2 2016 | 4,179,443 | $39,662 | — | — |
| Q1 2016 | 4,597,671 | $51,310 | — | — |
| Q4 2015 | 4,752,621 | $50,519 | — | — |
| Q3 2015 | 5,430,502 | $52,839 | — | — |
| Q2 2015 | 5,368,385 | $57,120 | — | — |
| Q1 2015 | 4,908,187 | $63,070 | — | — |
| Q4 2014 | 4,755,269 | $65,909 | — | — |
| Q3 2014 | 4,819,231 | $63,759 | — | — |
| Q2 2014 | 4,805,795 | $59,784 | — | — |
| Q1 2014 | 3,979,917 | $44,973 | — | — |
| Q4 2013 | 3,710,492 | $45,156 | — | — |
| Q3 2013 | 3,736,193 | $38,446 | — | — |
| Q2 2013 | 3,714,820 | $33,694 | — | — |