| Period | Shares, Excl. Options | Value, Excl. Options | Change | Price | Investors |
|---|---|---|---|---|---|
| 2017 Q3 | 0 | $0 | -$3.7B | 0 | |
| 2017 Q2 | 71.6M | $3.7B | +$59.7M | $51.69 | 158 |
| 2017 Q1 | 70.5M | $3.82B | +$241M | $54.47 | 164 |
| 2016 Q4 | 66.4M | $3.37B | +$54.8M | $50.81 | 154 |
| 2016 Q3 | 65.2M | $3.16B | +$67.5M | $48.44 | 147 |
| 2016 Q2 | 63.9M | $3.16B | +$246M | $49.53 | 151 |
| 2016 Q1 | 58.8M | $2.69B | +$13.2M | $45.66 | 141 |
| 2015 Q4 | 58.4M | $2.89B | +$22.2M | $50.32 | 147 |
| 2015 Q3 | 53.2M | $2.4B | +$317M | $45.00 | 146 |
| 2015 Q2 | 49.9M | $2.85B | +$131M | $57.12 | 145 |
| 2015 Q1 | 47.7M | $2.56B | +$32.6M | $53.80 | 147 |
| 2014 Q4 | 46.8M | $2.75B | +$716M | $58.85 | 146 |
| 2014 Q3 | 34.1M | $2.41B | +$150M | $70.77 | 127 |
| 2014 Q2 | 32M | $2.35B | +$22.3M | $73.40 | 122 |
| 2014 Q1 | 31.7M | $1.91B | +$80.4M | $60.21 | 120 |