| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2016 | Q3 | 169,188 | +49,474 |
| 2016 | Q2 | 119,714 | -142,988 |
| 2016 | Q1 | 262,702 | |
| 2015 | Q2 | 0 | Liquidated |
| 2015 | Q1 | 67,893 | |
| 2014 | Q1 | 0 | Liquidated |
| 2013 | Q4 | 447,385 | +283,359 |
| 2013 | Q3 | 164,026 | -186,313 |
| 2013 | Q2 | 350,339 | -127,692 |
| 2013 | Q1 | 478,031 | +477,486 |
| 2012 | Q4 | 545 |