CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2017 | 8,577 | $290 | — | — |
| Q2 2017 | 9,256 | $270 | — | — |
| Q1 2017 | 37,650 | $276 | — | — |
| Q4 2016 | 41,272 | $360 | — | — |
| Q3 2016 | 48,431 | $488 | — | — |
| Q2 2016 | 49,639 | $471 | — | — |
| Q1 2016 | 50,329 | $562 | — | — |
| Q4 2015 | 79,316 | $845 | — | — |
| Q3 2015 | 424,494 | $4,130 | — | — |
| Q2 2015 | 609,497 | $6,485 | — | — |
| Q1 2015 | 807,026 | $10,370 | — | — |
| Q4 2014 | 724,062 | $10,035 | — | — |
| Q3 2014 | 508,973 | $6,734 | — | — |
| Q2 2014 | 491,840 | $6,118 | — | — |
| Q1 2014 | 443,855 | $5,016 | — | — |
| Q4 2013 | 424,018 | $5,160 | — | — |
| Q3 2013 | 452,711 | $4,658 | — | — |
| Q2 2013 | 391,692 | $3,553 | — | — |