| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2014 | Q2 | 50,100 | +15,581 |
| 2014 | Q1 | 34,519 | |
| 2013 | Q4 | 34,519 | -416,961 |
| 2013 | Q3 | 451,480 | -231,500 |
| 2013 | Q2 | 682,980 | +242,327 |
| 2013 | Q1 | 440,653 | -649,796 |
| 2012 | Q4 | 1,090,449 | +431,551 |
| 2012 | Q3 | 658,898 | -36,432 |
| 2012 | Q2 | 695,330 | -249,340 |
| 2012 | Q1 | 944,670 |