| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2014 | Q4 | 0 | Liquidated |
| 2014 | Q3 | 7,936 | -188 |
| 2014 | Q2 | 8,124 | +481 |
| 2014 | Q1 | 7,643 | +619 |
| 2013 | Q4 | 7,024 | -4,202 |
| 2013 | Q3 | 11,226 | -548 |
| 2013 | Q2 | 11,774 | -424 |
| 2013 | Q1 | 12,198 | -2,882 |
| 2012 | Q4 | 15,080 | +380 |
| 2012 | Q3 | 14,700 | -188 |
| 2012 | Q2 | 14,888 | -3,255 |
| 2012 | Q1 | 18,143 | +601 |
| 2011 | Q4 | 17,542 | -3,304 |
| 2011 | Q3 | 20,846 | -7,281 |
| 2011 | Q2 | 28,127 |