CUSIP: 984305102 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2016 | 26,320 | $902 | — | — |
| Q2 2016 | 37,889 | $951 | — | — |
| Q1 2016 | 39,952 | $946 | — | — |
| Q4 2015 | 40,754 | $1,025 | — | — |
| Q3 2015 | 40,929 | $880 | — | — |
| Q2 2015 | 38,836 | $813 | — | — |
| Q1 2015 | 52,701 | $1,070 | — | — |
| Q4 2014 | 50,547 | $993 | — | — |
| Q3 2014 | 58,940 | $1,071 | — | — |
| Q2 2014 | 53,474 | $1,007 | — | — |
| Q1 2014 | 67,725 | $1,450 | — | — |