CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 40,308 | $296 | — | — |
| Q4 2016 | 26,098 | $228 | — | — |
| Q3 2016 | 82,267 | $833 | — | — |
| Q2 2016 | 200,318 | $1,902 | — | — |
| Q1 2016 | 92,061 | $1,027 | — | — |
| Q4 2015 | 124,279 | $1,321 | — | — |
| Q3 2015 | 145,838 | $1,419 | — | — |
| Q2 2015 | 163,175 | $1,736,177 | — | — |
| Q1 2015 | 136,760 | $1,757 | — | — |
| Q4 2014 | 153,421 | $2,126,412 | — | — |
| Q3 2014 | 216,696 | $2,866,891 | — | — |
| Q2 2014 | 193,587 | $2,408,220 | — | — |
| Q1 2014 | 65,832 | $743,902 | — | — |
| Q4 2013 | 153,220 | $1,864,684 | — | — |
| Q3 2013 | 115,734 | $1,190,905 | — | — |
| Q2 2013 | 61,006 | $553,328 | — | — |