| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2018 | Q2 | 4,027 | |
| 2018 | Q1 | 4,027 | +545 |
| 2017 | Q4 | 3,482 | -536 |
| 2017 | Q3 | 4,018 | +701 |
| 2017 | Q2 | 3,317 | +288 |
| 2017 | Q1 | 3,029 | +1,075 |
| 2016 | Q4 | 1,954 | -700 |
| 2016 | Q3 | 2,654 | +378 |
| 2016 | Q2 | 2,276 | +19 |
| 2016 | Q1 | 2,257 | +21 |
| 2015 | Q4 | 2,236 | +282 |
| 2015 | Q3 | 1,954 | +632 |
| 2015 | Q2 | 1,322 |