| Period | Shares, Excl. Options | Value, Excl. Options | Change | Price | Investors |
|---|---|---|---|---|---|
| 2021 Q3 | 0 | $0 | -$26.5M | 0 | |
| 2021 Q2 | 117K | $26.5M | +$26.5M | $226.56 | 1 |
| 2021 Q1 | 116K | $25.4M | -$950K | $219.64 | 1 |
| 2020 Q4 | 120K | $24.3M | -$3.71M | $202.67 | 1 |
| 2020 Q3 | 140K | $23.6M | -$611K | $168.49 | 2 |
| 2020 Q2 | 144K | $21.6M | -$236K | $150.43 | 3 |
| 2020 Q1 | 145K | $16.2M | -$4.47M | $111.57 | 3 |
| 2019 Q4 | 185K | $28.4M | -$1.89M | $149.33 | 2 |
| 2019 Q3 | 199K | $28.1M | +$536K | $143.41 | 4 |
| 2019 Q2 | 195K | $28.9M | +$615K | $148.29 | 3 |
| 2019 Q1 | 191K | $28.9M | +$1.78M | $151.20 | 3 |
| 2018 Q4 | 179K | $23.6M | -$4.54M | $129.49 | 2 |
| 2018 Q3 | 210K | $34.7M | -$786K | $165.14 | 4 |
| 2018 Q2 | 215K | $34.7M | -$133M | $161.68 | 6 |
| 2018 Q1 | 1.06M | $168M | -$73.9M | $158.12 | 73 |
| 2017 Q4 | 1.55M | $239M | -$11.7M | $154.10 | 94 |
| 2017 Q3 | 1.49M | $215M | +$16.1M | $144.29 | 83 |
| 2017 Q2 | 1.38M | $193M | -$3.29M | $139.99 | 83 |
| 2017 Q1 | 1.4M | $190M | -$10.9M | $135.63 | 89 |
| 2016 Q4 | 1.49M | $192M | -$10.6M | $128.86 | 85 |
| 2016 Q3 | 1.55M | $193M | -$9.4M | $124.72 | 84 |
| 2016 Q2 | 1.63M | $198M | -$52.9M | $121.56 | 86 |
| 2016 Q1 | 2.05M | $247M | -$59.3M | $120.92 | 82 |
| 2015 Q4 | 3.1M | $314M | +$22.7M | $124.69 | 91 |
| 2015 Q3 | 2.19M | $271M | +$24.4M | $123.61 | 80 |
| 2015 Q2 | 1.92M | $254M | -$3.24M | $132.30 | 78 |
| 2015 Q1 | 1.94M | $257M | -$16.9M | $132.58 | 77 |
| 2014 Q4 | 2.08M | $253M | -$26M | $121.80 | 83 |
| 2014 Q3 | 2.2M | $268M | -$12M | $122.32 | 79 |
| 2014 Q2 | 2.14M | $268M | +$126K | $125.36 | 73 |
| 2014 Q1 | 1.78M | $219M | +$6.96M | $123.43 | 71 |