| Period | Shares, Excl. Options | Value, Excl. Options | Change | Price | Investors |
|---|---|---|---|---|---|
| 2018 Q2 | 0 | $0 | -$789K | 0 | |
| 2018 Q1 | 6.88K | $789K | -$10.4B | $113.98 | 4 |
| 2017 Q4 | 90.8M | $10.5B | -$285M | $115.00 | 298 |
| 2017 Q3 | 93.7M | $10.1B | +$220M | $107.21 | 299 |
| 2017 Q2 | 90.3M | $8.17B | -$292M | $90.49 | 309 |
| 2017 Q1 | 93.7M | $8.94B | +$157M | $95.55 | 317 |
| 2016 Q4 | 91.9M | $9.23B | -$193M | $100.55 | 294 |
| 2016 Q3 | 93.9M | $8.5B | -$225M | $90.69 | 297 |
| 2016 Q2 | 97.8M | $8.87B | -$48.1M | $90.41 | 318 |
| 2016 Q1 | 96M | $8.53B | -$450M | $88.29 | 305 |
| 2015 Q4 | 103M | $9.17B | +$85.8M | $89.34 | 302 |
| 2015 Q3 | 101M | $9.06B | -$182M | $89.50 | 297 |
| 2015 Q2 | 105M | $11.2B | +$162M | $105.96 | 318 |
| 2015 Q1 | 104M | $10.9B | +$277M | $104.27 | 335 |
| 2014 Q4 | 97.4M | $9.27B | +$141M | $94.72 | 312 |
| 2014 Q3 | 96M | $8.56B | +$599M | $89.00 | 302 |
| 2014 Q2 | 91.9M | $8.43B | +$255M | $91.63 | 318 |
| 2014 Q1 | 89.1M | $8.76B | -$70.3M | $97.52 | 318 |