CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 38,886,994 | $285,428 | — | — |
| Q4 2016 | 41,141,203 | $359,163 | — | — |
| Q3 2016 | 49,574,402 | $502,182 | — | — |
| Q2 2016 | 50,542,073 | $479,640 | — | — |
| Q1 2016 | 52,897,487 | $590,338 | — | — |
| Q4 2015 | 52,864,366 | $561,955 | — | — |
| Q3 2015 | 60,087,079 | $584,651 | — | — |
| Q2 2015 | 66,925,157 | $712,081 | — | — |
| Q1 2015 | 68,328,121 | $878,017 | — | — |
| Q4 2014 | 67,795,800 | $939,660 | — | — |
| Q3 2014 | 68,598,215 | $907,555 | — | — |
| Q2 2014 | 72,782,628 | $905,416 | — | — |
| Q1 2014 | 73,504,825 | $830,599 | — | — |
| Q4 2013 | 76,146,487 | $926,700 | — | — |
| Q3 2013 | 75,102,444 | $772,805 | — | — |
| Q2 2013 | 77,359,492 | $701,650 | — | — |