| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2016 | Q4 | 788,752 | +139,411 |
| 2016 | Q3 | 649,341 | +88,612 |
| 2016 | Q2 | 560,729 | -44,923 |
| 2016 | Q1 | 605,652 | -44,983 |
| 2015 | Q4 | 650,635 | +16,890 |
| 2015 | Q3 | 633,745 | +27,982 |
| 2015 | Q2 | 605,763 | +124,296 |
| 2015 | Q1 | 481,467 | +110,342 |
| 2014 | Q4 | 371,125 | +108,749 |
| 2014 | Q3 | 262,376 | +13,928 |
| 2014 | Q2 | 248,448 | +14,433 |
| 2014 | Q1 | 234,015 | +28,444 |
| 2013 | Q4 | 205,571 | +14,575 |
| 2013 | Q3 | 190,996 | -2,023 |
| 2013 | Q2 | 193,019 | +134,017 |
| 2013 | Q1 | 59,002 |