CUSIP: 983919101 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2019 | 31,711 | $4,020,637 | — | — |
| Q4 2018 | 31,711 | $2,700,825 | — | — |
| Q3 2018 | 31,711 | $2,542,270 | — | — |
| Q2 2018 | 31,711 | $2,069,459 | — | — |
| Q1 2018 | 31,711 | $2,290,802 | — | — |
| Q4 2017 | 29,115 | $1,962,933 | — | — |
| Q3 2017 | 29,115 | $2,062,215 | — | — |
| Q2 2017 | 31,240 | $2,009,356 | — | — |
| Q1 2017 | 31,240 | $1,808,484 | — | — |
| Q4 2016 | 31,240 | $1,885,958 | — | — |
| Q1 2015 | 46,746 | $1,977,356 | — | — |
| Q4 2014 | 46,746 | $2,023,634 | — | — |
| Q3 2014 | 46,746 | $1,979,693 | — | — |
| Q2 2014 | 46,746 | $2,211,553 | — | — |
| Q1 2014 | 48,650 | $2,640,235 | — | — |
| Q4 2013 | 48,650 | $2,234,008 | — | — |
| Q3 2013 | 47,010 | $2,202,465 | — | — |
| Q2 2013 | 67,935 | $2,690,905 | — | — |