CUSIP: 98212B103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2018 | 35,450 | $524 | — | — |
| Q4 2017 | 41,550 | $585 | — | — |
| Q3 2017 | 46,500 | $535 | — | — |
| Q2 2017 | 52,750 | $499 | — | — |
| Q1 2017 | 52,300 | $700 | — | — |
| Q4 2016 | 52,750 | $769 | — | — |
| Q3 2016 | 54,850 | $723 | — | — |
| Q2 2016 | 57,250 | $533 | — | — |
| Q1 2016 | 58,850 | $411 | — | — |
| Q4 2015 | 60,650 | $348 | — | — |
| Q3 2015 | 61,100 | $404 | — | — |
| Q2 2015 | 60,400 | $742 | — | — |
| Q1 2015 | 60,800 | $665 | — | — |
| Q4 2014 | 61,800 | $719 | — | — |
| Q3 2014 | 63,500 | $1,528 | — | — |
| Q2 2014 | 64,350 | $1,539 | — | — |
| Q1 2014 | 71,000 | $1,280 | — | — |
| Q4 2013 | 73,900 | $1,506 | — | — |
| Q3 2013 | 76,350 | $1,471 | — | — |
| Q2 2013 | 76,350 | $1,446 | — | — |