CUSIP: 983919101 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2017 | 63,400 | $4,491 | — | — |
| Q2 2017 | 1,109,700 | $71,376 | — | — |
| Q1 2017 | 1,144,600 | $66,261 | — | — |
| Q4 2016 | 1,530,200 | $92,378 | — | — |
| Q3 2016 | 1,840,800 | $100,029 | — | — |
| Q2 2016 | 1,985,400 | $91,587 | — | — |
| Q1 2016 | 1,953,300 | $92,645 | — | — |
| Q4 2015 | 1,898,800 | $89,187 | — | — |