| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2016 | Q4 | 860,500 | |
| 2016 | Q3 | 860,500 | |
| 2016 | Q2 | 860,500 | |
| 2015 | Q4 | 0 | Liquidated |
| 2015 | Q3 | 595,500 | -300,000 |
| 2015 | Q2 | 895,500 | +280,000 |
| 2015 | Q1 | 615,500 | |
| 2014 | Q4 | 615,500 | -455,000 |
| 2014 | Q3 | 1,070,500 | -2,010,000 |
| 2014 | Q2 | 3,080,500 | |
| 2014 | Q1 | 3,080,500 | +2,825,500 |
| 2013 | Q4 | 255,000 | |
| 2013 | Q3 | 255,000 | |
| 2013 | Q2 | 255,000 | +255,000 |
| 2013 | Q1 | 0 | Liquidated |
| 2012 | Q4 | 255,000 | -1,400,650 |
| 2012 | Q3 | 1,655,650 | +820,000 |
| 2012 | Q2 | 835,650 | |
| 2011 | Q4 | 0 | Liquidated |
| 2011 | Q3 | 3,381,015 | +523,020 |
| 2011 | Q2 | 2,857,995 |