| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2018 | Q4 | 245,705 | -676,200 |
| 2018 | Q3 | 921,905 | -114,665 |
| 2018 | Q2 | 1,036,570 | -27,500 |
| 2018 | Q1 | 1,064,070 | -55,000 |
| 2017 | Q4 | 1,119,070 | -43,000 |
| 2017 | Q3 | 1,162,070 | |
| 2017 | Q2 | 1,162,070 | +725,500 |
| 2017 | Q1 | 436,570 | -367,050 |
| 2016 | Q4 | 803,620 | -246,914 |
| 2016 | Q3 | 1,050,534 | -482,286 |
| 2016 | Q2 | 1,532,820 | -223,100 |
| 2016 | Q1 | 1,755,920 | +946,920 |
| 2015 | Q4 | 809,000 |