| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2015 | Q2 | 0 | Liquidated |
| 2015 | Q1 | 114,558 | -22,899 |
| 2014 | Q4 | 137,457 | -20,535 |
| 2014 | Q3 | 157,992 | -2,275 |
| 2014 | Q2 | 160,267 | +6,502 |
| 2014 | Q1 | 153,765 | +58,629 |
| 2013 | Q4 | 95,136 | -31,481 |
| 2013 | Q3 | 126,617 | -10,110 |
| 2013 | Q2 | 136,727 | +63,352 |
| 2013 | Q1 | 73,375 | +4,752 |
| 2012 | Q4 | 68,623 | +17,339 |
| 2012 | Q3 | 51,284 |