CUSIP: 984332106 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 57,826,148 | $2,683,712 | — | — |
| Q4 2016 | 55,924,468 | $2,162,599 | — | — |
| Q3 2016 | 54,690,118 | $2,357,143 | — | — |
| Q2 2016 | 53,298,983 | $2,001,909 | — | — |
| Q1 2016 | 52,172,257 | $1,920,461 | — | — |
| Q4 2015 | 50,620,561 | $1,683,640 | — | — |
| Q3 2015 | 49,205,272 | $1,422,525 | — | — |
| Q2 2015 | 48,589,442 | $1,909,079 | — | — |
| Q1 2015 | 48,125,493 | $2,138,457 | — | — |
| Q4 2014 | 46,883,344 | $2,368,077 | — | — |
| Q3 2014 | 47,680,327 | $1,942,973 | — | — |
| Q2 2014 | 47,109,534 | $1,654,958 | — | — |
| Q1 2014 | 46,333,315 | $1,663,367 | — | — |
| Q4 2013 | 45,381,583 | $1,835,231 | — | — |
| Q3 2013 | 45,141,665 | $1,496,901 | — | — |
| Q2 2013 | 43,609,989 | $1,095,053 | — | — |