CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 10,591,435 | $77,741 | — | — |
| Q4 2016 | 9,811,516 | $85,654 | — | — |
| Q3 2016 | 8,268,919 | $83,763 | — | — |
| Q2 2016 | 6,602,316 | $62,656 | — | — |
| Q1 2016 | 6,576,730 | $73,397 | — | — |
| Q4 2015 | 4,144,696 | $44,057 | — | — |
| Q3 2015 | 4,107,386 | $39,965 | — | — |
| Q2 2015 | 15,705,616 | $167,107 | — | — |
| Q1 2015 | 27,617,107 | $354,879 | — | — |
| Q4 2014 | 23,230,033 | $321,968 | — | — |
| Q3 2014 | 20,179,834 | $266,980 | — | — |
| Q2 2014 | 23,265,246 | $289,419 | — | — |
| Q1 2014 | 25,081,687 | $283,423 | — | — |
| Q4 2013 | 9,515,270 | $115,800 | — | — |
| Q3 2013 | 5,025,241 | $51,709 | — | — |
| Q2 2013 | 4,754,102 | $43,119 | — | — |
| Q4 2012 | 3,566,048 | $24,321 | — | — |
| Q3 2012 | 5,123,296 | $37,605 | — | — |
| Q2 2012 | 4,571,410 | $35,978 | — | — |
| Q1 2012 | 1,926,401 | $15,556 | — | — |