| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2014 | Q3 | 92,135 | +11,476 |
| 2014 | Q2 | 80,659 | -6,103 |
| 2014 | Q1 | 86,762 | +79,257 |
| 2013 | Q4 | 7,505 | |
| 2013 | Q4 | 79,378 | -6,920 |
| 2013 | Q3 | 86,298 | |
| 2013 | Q3 | 8,385 | +467 |
| 2013 | Q2 | 7,918 | |
| 2013 | Q2 | 82,749 | +69,992 |
| 2013 | Q1 | 12,757 | |
| 2013 | Q1 | 137,233 | +112,618 |
| 2012 | Q4 | 24,615 | |
| 2012 | Q4 | 211,255 | +189,656 |
| 2012 | Q3 | 21,599 | |
| 2012 | Q3 | 167,343 | +35,417 |
| 2012 | Q2 | 131,926 | |
| 2012 | Q2 | 11,399 | -205,688 |
| 2012 | Q1 | 217,087 | |
| 2012 | Q1 | 20,546 | -40,312 |
| 2011 | Q4 | 60,858 | |
| 2011 | Q4 | 134,211 |