CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 20,269 | $149 | — | — |
| Q4 2016 | 21,279 | $186 | — | — |
| Q3 2016 | 41,578 | $421 | — | — |
| Q2 2016 | 41,728 | $396 | — | — |
| Q1 2016 | 41,278 | $461 | — | — |
| Q4 2015 | 41,438 | $440 | — | — |
| Q3 2015 | 43,218 | $421 | — | — |
| Q2 2015 | 49,684 | $529 | — | — |
| Q1 2015 | 46,868 | $602 | — | — |
| Q4 2014 | 47,348 | $656 | — | — |
| Q3 2014 | 48,688 | $644 | — | — |
| Q2 2014 | 52,068 | $648 | — | — |
| Q1 2014 | 55,448 | $627 | — | — |
| Q4 2013 | 52,898 | $644 | — | — |
| Q3 2013 | 46,988 | $484 | — | — |
| Q2 2013 | 46,698 | $424 | — | — |