CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2015 | 65,713 | $639 | — | — |
| Q2 2015 | 68,143 | $725 | — | — |
| Q1 2015 | 79,483 | $1,021 | — | — |
| Q4 2014 | 83,047 | $1,151 | — | — |
| Q3 2014 | 93,385 | $1,235 | — | — |
| Q2 2014 | 106,340 | $1,323 | — | — |
| Q1 2014 | 105,340 | $1,190 | — | — |
| Q4 2013 | 107,940 | $1,314 | — | — |
| Q3 2013 | 107,940 | $1,111 | — | — |
| Q2 2013 | 107,940 | $979 | — | — |