CUSIP: 983772104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2018 | 32,400 | $1,117 | — | — |
| Q2 2018 | 33,400 | $1,069 | — | — |
| Q1 2018 | 35,100 | $728 | — | — |
| Q4 2017 | 34,500 | $637 | — | — |
| Q3 2017 | 47,600 | $936 | — | — |
| Q2 2017 | 45,200 | $796 | — | — |
| Q1 2017 | 45,200 | $778 | — | — |
| Q4 2016 | 45,200 | $879 | — | — |
| Q3 2016 | 45,200 | $874 | — | — |