CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 8,226,075 | $60,376 | — | — |
| Q4 2016 | 6,693,608 | $58,432 | — | — |
| Q3 2016 | 5,398,620 | $54,686 | — | — |
| Q2 2016 | 3,457,939 | $32,813 | — | — |
| Q1 2016 | 3,562,322 | $39,751 | — | — |
| Q4 2015 | 3,831,334 | $40,723 | — | — |
| Q3 2015 | 4,495,351 | $43,736 | — | — |
| Q2 2015 | 7,122,024 | $75,772 | — | — |
| Q1 2015 | 3,748,012 | $48,159 | — | — |
| Q4 2014 | 3,636,380 | $50,396 | — | — |
| Q3 2014 | 3,872,319 | $51,226 | — | — |
| Q2 2014 | 4,107,356 | $51,091 | — | — |
| Q1 2014 | 6,379,621 | $72,086 | — | — |
| Q4 2013 | 4,389,695 | $53,418 | — | — |
| Q3 2013 | 3,269,847 | $33,643 | — | — |