| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2017 | Q1 | 746,166 | -70,808 |
| 2016 | Q4 | 816,974 | +38,112 |
| 2016 | Q3 | 778,862 | -97,644 |
| 2016 | Q2 | 876,506 | +124,101 |
| 2016 | Q1 | 752,405 | -108,989 |
| 2015 | Q4 | 861,394 | -331,001 |
| 2015 | Q3 | 1,192,395 | -136,411 |
| 2015 | Q2 | 1,328,806 | -308,470 |
| 2015 | Q1 | 1,637,276 | -174,763 |
| 2014 | Q4 | 1,812,039 | -28,519 |
| 2014 | Q3 | 1,840,558 | -739,373 |
| 2014 | Q2 | 2,579,931 |