CUSIP: 984121103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2017 | 9,313,456 | $68,363 | — | — |
| Q4 2016 | 6,423,853 | $56,081 | — | — |
| Q3 2016 | 5,046,727 | $51,123 | — | — |
| Q2 2016 | 4,779,627 | $45,358 | — | — |
| Q1 2016 | 3,907,175 | $43,604 | — | — |
| Q4 2015 | 4,971,733 | $52,849 | — | — |
| Q3 2015 | 4,004,098 | $38,960 | — | — |
| Q2 2015 | 4,930,191 | $52,457 | — | — |
| Q1 2015 | 4,332,489 | $55,673 | — | — |
| Q4 2014 | 3,680,314 | $51,010 | — | — |
| Q3 2014 | 4,168,205 | $55,146 | — | — |
| Q2 2014 | 3,984,595 | $49,570 | — | — |
| Q1 2014 | 3,487,783 | $39,412 | — | — |
| Q4 2013 | 2,791,364 | $33,971 | — | — |
| Q3 2013 | 2,586,939 | $26,619 | — | — |
| Q2 2013 | 2,280,123 | $20,680 | — | — |