| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2014 | Q1 | 0 | Liquidated |
| 2013 | Q4 | 17,035 | -1,025,404 |
| 2013 | Q3 | 1,042,439 | |
| 2012 | Q4 | 0 | Liquidated |
| 2012 | Q3 | 800,435 | +800,435 |
| 2012 | Q2 | 0 | Liquidated |
| 2012 | Q1 | 20,647 | +20,647 |
| 2011 | Q4 | 0 | Liquidated |
| 2011 | Q3 | 2,223,704 | +97,969 |
| 2011 | Q2 | 2,125,735 | +669,740 |
| 2011 | Q1 | 1,455,995 |