CUSIP: 983772104 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2018 | 19,109 | $659 | — | — |
| Q2 2018 | 18,717 | $599 | — | — |
| Q1 2018 | 15,730 | $326 | — | — |
| Q4 2017 | 19,510 | $360 | — | — |
| Q3 2017 | 19,432 | $382 | — | — |
| Q2 2017 | 18,395 | $324 | — | — |
| Q1 2017 | 15,652 | $269 | — | — |
| Q4 2016 | 18,538 | $361 | — | — |
| Q3 2016 | 18,806 | $363,520 | — | — |
| Q2 2016 | 18,648 | $325,035 | — | — |
| Q1 2016 | 19,474 | $313,000 | — | — |
| Q4 2015 | 18,667 | $300,000 | — | — |
| Q3 2015 | 18,484 | $261 | — | — |
| Q2 2015 | 18,405 | $300,922 | — | — |
| Q1 2015 | 19,865 | $351,015 | — | — |
| Q4 2014 | 19,744 | $359,538 | — | — |
| Q3 2014 | 20,595 | $230,870 | — | — |
| Q2 2014 | 20,557 | $251,207 | — | — |
| Q1 2014 | 20,959 | $212,525 | — | — |
| Q4 2013 | 20,166 | $299,667 | — | — |
| Q3 2013 | 20,064 | $259,227 | — | — |
| Q2 2013 | 20,216 | $226,419 | — | — |