CUSIP: 983772104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2018 | 10,800 | $372 | — | — |
| Q2 2018 | 10,900 | $349 | — | — |
| Q1 2018 | 10,700 | $222 | — | — |
| Q4 2017 | 10,400 | $192 | — | — |
| Q1 2017 | 10,100 | $174 | — | — |
| Q4 2016 | 10,000 | $195 | — | — |
| Q3 2016 | 11,000 | $213 | — | — |
| Q2 2016 | 10,600 | $185 | — | — |
| Q1 2016 | 10,500 | $169 | — | — |
| Q4 2015 | 10,400 | $167 | — | — |
| Q3 2015 | 10,400 | $147 | — | — |
| Q2 2015 | 10,600 | $173 | — | — |
| Q1 2015 | 10,600 | $187 | — | — |
| Q4 2014 | 11,000 | $200 | — | — |
| Q3 2014 | 11,100 | $124 | — | — |
| Q2 2014 | 11,500 | $141 | — | — |
| Q1 2014 | 11,500 | $117 | — | — |
| Q4 2013 | 11,500 | $171 | — | — |