| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2018 | Q4 | 150,000 | -52,000 |
| 2018 | Q3 | 202,000 | -8,500 |
| 2018 | Q2 | 210,500 | -2,300 |
| 2018 | Q1 | 212,800 | |
| 2017 | Q4 | 212,800 | |
| 2017 | Q3 | 212,800 | +2,800 |
| 2017 | Q2 | 210,000 | -178,000 |
| 2017 | Q1 | 388,000 | -12,000 |
| 2016 | Q4 | 400,000 | |
| 2016 | Q1 | 0 | Liquidated |
| 2015 | Q4 | 712,000 | -4,000 |
| 2015 | Q3 | 716,000 |