CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 69,570 | $511 | — | — |
| Q4 2016 | 69,570 | $607 | — | — |
| Q3 2016 | 65,020 | $659 | — | — |
| Q2 2016 | 64,920 | $621 | — | — |
| Q1 2016 | 29,200 | $328 | — | — |
| Q4 2015 | 28,660 | $307 | — | — |
| Q3 2015 | 30,130 | $295 | — | — |
| Q2 2015 | 31,190 | $332 | — | — |
| Q1 2015 | 31,800 | $411 | — | — |
| Q4 2014 | 37,800 | $526 | — | — |
| Q3 2014 | 37,800 | $502 | — | — |
| Q2 2014 | 39,500 | $494 | — | — |
| Q1 2014 | 39,500 | $446 | — | — |
| Q4 2013 | 40,800 | $497 | — | — |
| Q3 2013 | 40,800 | $420 | — | — |