CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 12,226,158 | $89,740 | — | — |
| Q4 2016 | 10,730,692 | $93,679 | — | — |
| Q3 2016 | 9,395,165 | $95,173 | — | — |
| Q2 2016 | 8,352,786 | $79,268 | — | — |
| Q1 2016 | 8,273,775 | $92,335 | — | — |
| Q4 2015 | 7,902,719 | $84,006 | — | — |
| Q3 2015 | 7,265,620 | $70,694 | — | — |
| Q2 2015 | 6,071,549 | $64,601 | — | — |
| Q1 2015 | 5,959,880 | $76,585 | — | — |
| Q4 2014 | 3,929,748 | $54,466 | — | — |
| Q3 2014 | 3,580,142 | $47,365 | — | — |
| Q2 2014 | 8,161,360 | $101,527 | — | — |
| Q1 2014 | 7,020,571 | $79,332 | — | — |
| Q4 2013 | 7,043,266 | $85,717 | — | — |
| Q3 2013 | 6,794,171 | $69,912 | — | — |
| Q2 2013 | 4,408,384 | $39,984 | — | — |