CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 20,737,443 | $152,213 | — | — |
| Q4 2016 | 24,450,993 | $213,457 | — | — |
| Q3 2016 | 25,603,714 | $259,364 | — | — |
| Q2 2016 | 25,393,340 | $240,982 | — | — |
| Q1 2016 | 25,458,950 | $284,123 | — | — |
| Q4 2015 | 25,353,768 | $269,510 | — | — |
| Q3 2015 | 22,889,350 | $222,714 | — | — |
| Q2 2015 | 22,805,795 | $242,655 | — | — |
| Q1 2015 | 22,375,353 | $287,523 | — | — |
| Q4 2014 | 22,465,559 | $311,373 | — | — |
| Q3 2014 | 17,744,996 | $234,766 | — | — |
| Q2 2014 | 17,450,234 | $217,082 | — | — |
| Q1 2014 | 17,359,213 | $196,159 | — | — |
| Q4 2013 | 17,543,977 | $213,511 | — | — |
| Q3 2013 | 22,489,377 | $231,416 | — | — |
| Q2 2013 | 22,458,558 | $203,698 | — | — |