CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 25,000 | $184 | — | — |
| Q4 2016 | 25,000 | $218 | — | — |
| Q3 2016 | 25,000 | $253 | — | — |
| Q2 2016 | 25,000 | $237 | — | — |
| Q1 2016 | 25,000 | $279 | — | — |
| Q4 2015 | 25,000 | $266 | — | — |
| Q3 2015 | 25,000 | $243 | — | — |
| Q2 2015 | 25,000 | $266 | — | — |
| Q1 2015 | 25,000 | $321 | — | — |
| Q4 2014 | 25,000 | $347 | — | — |
| Q3 2014 | 25,000 | $331 | — | — |
| Q2 2014 | 25,000 | $311 | — | — |
| Q1 2014 | 25,000 | $283 | — | — |
| Q4 2013 | 55,500 | $675 | — | — |
| Q3 2013 | 55,500 | $571 | — | — |
| Q2 2013 | 65,000 | $590 | — | — |
| Q1 2013 | 65,000 | $559 | — | — |
| Q4 2012 | 65,000 | $444 | — | — |