| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2017 | Q2 | 63,195 | -2,845,359 |
| 2017 | Q1 | 2,908,554 | -459,840 |
| 2016 | Q4 | 3,368,394 | |
| 2016 | Q3 | 3,368,394 | +131,300 |
| 2016 | Q2 | 3,237,094 | |
| 2016 | Q1 | 3,237,094 | -94,121 |
| 2015 | Q4 | 3,331,215 | -227,974 |
| 2015 | Q3 | 3,559,189 | -218,006 |
| 2015 | Q2 | 3,777,195 | -86,000 |
| 2015 | Q1 | 3,863,195 | -213,130 |
| 2014 | Q4 | 4,076,325 | |
| 2014 | Q3 | 4,076,325 | |
| 2014 | Q2 | 4,076,325 | |
| 2014 | Q1 | 4,076,325 | |
| 2013 | Q4 | 4,076,325 | |
| 2013 | Q3 | 4,076,325 | |
| 2013 | Q2 | 4,076,325 | |
| 2013 | Q1 | 4,076,325 | +4,400 |
| 2012 | Q4 | 4,071,925 | +2,472,861 |
| 2012 | Q3 | 1,599,064 |