| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2017 | Q2 | 10,735 | +7,261 |
| 2017 | Q1 | 3,474 | +503 |
| 2016 | Q4 | 2,971 | -2,265 |
| 2016 | Q3 | 5,236 | +89 |
| 2016 | Q2 | 5,147 | +949 |
| 2016 | Q1 | 4,198 | +172 |
| 2015 | Q4 | 4,026 | +721 |
| 2015 | Q3 | 3,305 | +1,520 |
| 2015 | Q2 | 1,785 | +20 |
| 2015 | Q1 | 1,765 | +63 |
| 2014 | Q4 | 1,702 | -1,671,614 |
| 2014 | Q3 | 1,673,316 | -854,531 |
| 2014 | Q2 | 2,527,847 | -438,408 |
| 2014 | Q1 | 2,966,255 | -32,491 |
| 2013 | Q4 | 2,998,746 | +1,302,462 |
| 2013 | Q3 | 1,696,284 | +12,768 |
| 2013 | Q2 | 1,683,516 | -80,503 |
| 2013 | Q1 | 1,764,019 | -17,181 |
| 2012 | Q4 | 1,781,200 |