CUSIP: 983919101 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2016 | 3,411,319 | $161,798 | — | — |
| Q4 2015 | 7,356,114 | $345,516 | — | — |
| Q3 2015 | 7,544,223 | $319,875 | — | — |
| Q2 2015 | 7,323,226 | $323,394 | — | — |
| Q1 2015 | 7,181,343 | $303,771 | — | — |
| Q4 2014 | 6,856,870 | $296,833 | — | — |
| Q3 2014 | 6,502,473 | $275,380 | — | — |
| Q2 2014 | 6,388,454 | $302,237 | — | — |
| Q1 2014 | 6,633,611 | $360,006 | — | — |
| Q4 2013 | 6,441,933 | $295,814 | — | — |
| Q3 2013 | 6,371,090 | $298,550 | — | — |
| Q2 2013 | 5,752,593 | $227,860 | — | — |