CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 12,564,344 | $92,221 | — | — |
| Q4 2016 | 10,394,476 | $90,744 | — | — |
| Q3 2016 | 10,327,942 | $104,624 | — | — |
| Q2 2016 | 5,738,887 | $54,462 | — | — |
| Q1 2016 | 5,289,210 | $59,027 | — | — |
| Q4 2015 | 5,437,914 | $57,805 | — | — |
| Q3 2015 | 4,732,554 | $46,047 | — | — |
| Q2 2015 | 6,670,283 | $70,973 | — | — |
| Q1 2015 | 8,070,607 | $103,709 | — | — |
| Q4 2014 | 6,956,502 | $96,417 | — | — |
| Q3 2014 | 6,543,366 | $86,570 | — | — |
| Q2 2014 | 3,532,837 | $43,949 | — | — |
| Q1 2014 | 2,103,696 | $23,771 | — | — |
| Q4 2013 | 3,480,342 | $42,356 | — | — |
| Q3 2013 | 2,944,542 | $30,299 | — | — |
| Q2 2013 | 2,086,506 | $18,925 | — | — |