| Period | Shares, Excl. Options | Value, Excl. Options | Change | Price | Investors |
|---|---|---|---|---|---|
| 2018 Q4 | 0 | $0 | -$687M | 0 | |
| 2018 Q3 | 48.2M | $688M | -$10.7M | $14.27 | 157 |
| 2018 Q2 | 49.1M | $686M | +$61.9M | $13.97 | 160 |
| 2018 Q1 | 46M | $535M | +$28.5M | $11.65 | 154 |
| 2017 Q4 | 45.4M | $445M | -$15.8M | $9.79 | 144 |
| 2017 Q3 | 46.3M | $457M | -$225K | $9.85 | 133 |
| 2017 Q2 | 46.4M | $454M | +$18.8M | $9.77 | 131 |
| 2017 Q1 | 45.6M | $406M | +$31.8M | $8.89 | 133 |
| 2016 Q4 | 44.8M | $343M | +$252K | $7.64 | 116 |
| 2016 Q3 | 43.9M | $266M | -$9.74M | $6.06 | 108 |
| 2016 Q2 | 45.6M | $262M | +$1.53M | $5.75 | 111 |
| 2016 Q1 | 45.4M | $296M | +$2.92M | $6.52 | 114 |
| 2015 Q4 | 45M | $273M | -$6.88M | $6.05 | 123 |
| 2015 Q3 | 45.7M | $287M | -$11.3M | $6.28 | 135 |
| 2015 Q2 | 48.5M | $367M | +$13.5M | $7.57 | 145 |
| 2015 Q1 | 45.9M | $408M | -$9.34M | $8.89 | 143 |
| 2014 Q4 | 46.9M | $429M | +$36.5M | $9.16 | 125 |
| 2014 Q3 | 44.8M | $438M | +$67.7M | $9.79 | 128 |
| 2014 Q2 | 38M | $346M | +$346M | $9.10 | 115 |