| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2018 | Q4 | 765,600 | -143,900 |
| 2018 | Q3 | 909,500 | -33,000 |
| 2018 | Q2 | 942,500 | +258,600 |
| 2018 | Q1 | 683,900 | +553,900 |
| 2017 | Q4 | 130,000 | |
| 2016 | Q3 | 0 | Liquidated |
| 2016 | Q2 | 828,318 | +828,318 |
| 2016 | Q1 | 0 | Liquidated |
| 2015 | Q4 | 2,981,750 | -50,100 |
| 2015 | Q3 | 3,031,850 | -1,246,300 |
| 2015 | Q2 | 4,278,150 | -22,400 |
| 2015 | Q1 | 4,300,550 | +55,200 |
| 2014 | Q4 | 4,245,350 | -915,200 |
| 2014 | Q3 | 5,160,550 |