CUSIP: 98872B104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2017 | 108,091 | $517 | — | — |
| Q3 2017 | 99,393 | $460 | — | — |
| Q2 2017 | 95,844 | $450 | — | — |
| Q1 2017 | 131,989 | $540 | — | — |
| Q4 2016 | 94,162 | $337 | — | — |
| Q3 2016 | 98,928 | $393 | — | — |
| Q2 2016 | 92,882 | $342 | — | — |
| Q1 2016 | 25,878 | $96 | — | — |
| Q4 2015 | 1,885 | $6 | — | — |
| Q3 2015 | 7,750 | $19 | — | — |
| Q2 2015 | 25,881 | $140 | — | — |
| Q1 2015 | 23,581 | $122 | — | — |
| Q4 2014 | 25,480 | $128 | — | — |
| Q3 2014 | 42,169 | $210 | — | — |
| Q2 2014 | 45,402 | $268 | — | — |
| Q1 2014 | 38,142 | $278 | — | — |
| Q4 2013 | 10,488 | $78 | — | — |
| Q3 2013 | 94,976 | $1,006 | — | — |