CUSIP: 98872B104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2017 | 93,836 | $449 | — | — |
| Q3 2017 | 75,624 | $350 | — | — |
| Q2 2017 | 98,617 | $463 | — | — |
| Q1 2017 | 116,055 | $475 | — | — |
| Q4 2016 | 130,539 | $467 | — | — |
| Q3 2016 | 108,773 | $432 | — | — |
| Q2 2016 | 113,946 | $419 | — | — |
| Q1 2016 | 14,414 | $54 | — | — |
| Q4 2015 | 24,942 | $88 | — | — |
| Q3 2015 | 86,438 | $224 | — | — |
| Q2 2015 | 167,905 | $910 | — | — |
| Q1 2015 | 134,632 | $699 | — | — |
| Q4 2014 | 292,425 | $1,474 | — | — |
| Q3 2014 | 10,905 | $55 | — | — |
| Q2 2014 | 22,391 | $132 | — | — |
| Q3 2013 | 16,263 | $172 | — | — |