CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2017 | 24,757,502 | $824,177 | — | — |
| Q2 2017 | 24,757,502 | $711,283 | — | — |
| Q1 2017 | 99,030,026 | $726,880 | — | — |
| Q4 2016 | 99,030,026 | $864,532 | — | — |
| Q3 2016 | 99,030,026 | $1,003,174 | — | — |
| Q2 2016 | 99,030,026 | $939,795 | — | — |
| Q1 2016 | 92,377,043 | $1,030,928 | — | — |
| Q4 2015 | 86,436,172 | $918,816 | — | — |