CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 54,917 | $403,091 | — | — |
| Q4 2016 | 662,447 | $7,702,970 | — | — |
| Q3 2016 | 980,433 | $7,400,458 | — | — |
| Q2 2016 | 1,566,486 | $10,535,520 | — | — |
| Q1 2016 | 773,951 | $8,637,293 | — | — |
| Q4 2015 | 773,951 | $8,227,098 | — | — |
| Q3 2015 | 692,318 | $6,736,254 | — | — |
| Q2 2015 | 146,564 | $1,559,441 | — | — |
| Q1 2015 | 164,657 | $2,213,182 | — | — |
| Q4 2014 | 176,557 | $2,447,080 | — | — |
| Q3 2014 | 176,557 | $2,335,850 | — | — |
| Q2 2014 | 181,857 | $2,262,301 | — | — |
| Q1 2014 | 182,607 | $2,063,459 | — | — |
| Q4 2013 | 510,807 | $6,216,521 | — | — |
| Q3 2013 | 1,185,157 | $12,195,266 | — | — |
| Q2 2013 | 975,603 | $8,700,880 | — | — |