| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2018 | Q2 | 3,977 | |
| 2018 | Q1 | 3,977 | -5 |
| 2017 | Q4 | 3,982 | -425 |
| 2017 | Q3 | 4,407 | +778 |
| 2017 | Q2 | 3,629 | -432 |
| 2017 | Q1 | 4,061 | +2,062 |
| 2016 | Q4 | 1,999 | -787 |
| 2016 | Q3 | 2,786 | -32 |
| 2016 | Q2 | 2,818 | +313 |
| 2016 | Q1 | 2,505 | +89 |
| 2015 | Q4 | 2,416 | +11 |
| 2015 | Q3 | 2,405 | +1,029 |
| 2015 | Q2 | 1,376 |