CUSIP: 98420P100 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2017 | 380,734 | $218 | — | — |
| Q3 2017 | 631,104 | $455 | — | — |
| Q2 2017 | 635,104 | $419 | — | — |
| Q1 2017 | 685,104 | $427 | — | — |
| Q4 2016 | 971,081 | $534 | — | — |
| Q3 2016 | 295,538 | $334 | — | — |
| Q2 2016 | 413,788 | $790 | — | — |
| Q1 2016 | 431,775 | $1,170 | — | — |
| Q4 2015 | 422,800 | $1,184 | — | — |