CUSIP: 983919101 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2017 | 5,236 | $353 | — | — |
| Q3 2017 | 6,136 | $436 | — | — |
| Q2 2017 | 6,963 | $448 | — | — |
| Q1 2017 | 7,949 | $460 | — | — |
| Q4 2016 | 8,701 | $525 | — | — |
| Q3 2016 | 9,505 | $517 | — | — |