| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2014 | Q1 | 3,737,373 | -3,624,511 |
| 2013 | Q4 | 7,361,884 | -8,291,445 |
| 2013 | Q3 | 15,653,329 | -9,586,010 |
| 2013 | Q2 | 25,239,339 | +25,239,339 |
| 2013 | Q1 | 0 | Liquidated |
| 2012 | Q4 | 39,616,773 | -6,132,481 |
| 2012 | Q3 | 45,749,254 | |
| 2012 | Q2 | 45,749,254 | +45,749,254 |
| 2012 | Q1 | 0 | Liquidated |
| 2011 | Q4 | 45,749,254 | +73,400 |
| 2011 | Q3 | 45,675,854 | +2,542,137 |
| 2011 | Q2 | 43,133,717 |