CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 86,890,476 | $637,777 | — | — |
| Q4 2016 | 90,678,683 | $791,625 | — | — |
| Q3 2016 | 86,194,814 | $873,154 | — | — |
| Q2 2016 | 91,855,728 | $871,711 | — | — |
| Q1 2016 | 87,564,921 | $977,224 | — | — |
| Q4 2015 | 82,986,320 | $882,145 | — | — |
| Q3 2015 | 84,720,837 | $824,334 | — | — |
| Q2 2015 | 74,851,757 | $796,423 | — | — |
| Q1 2015 | 72,140,757 | $927,009 | — | — |
| Q4 2014 | 70,691,475 | $979,784 | — | — |
| Q3 2014 | 68,910,771 | $911,689 | — | — |
| Q2 2014 | 67,885,242 | $844,493 | — | — |
| Q1 2014 | 67,443,605 | $762,112 | — | — |
| Q4 2013 | 71,070,628 | $864,930 | — | — |
| Q3 2013 | 71,747,560 | $738,282 | — | — |
| Q2 2013 | 68,407,960 | $620,460 | — | — |