| Period | Shares, Excl. Options | Value, Excl. Options | Change | Price | Investors |
|---|---|---|---|---|---|
| 2021 Q1 | 0 | $0 | -$366K | 0 | |
| 2020 Q4 | 4K | $366K | +$366K | $91.50 | 1 |
| 2018 Q3 | 0 | $0 | -$24K | 0 | |
| 2018 Q2 | 269 | $24K | -$145M | $90.10 | 2 |
| 2018 Q1 | 1.6M | $145M | +$36.3M | $90.11 | 47 |
| 2017 Q4 | 1.21M | $103M | -$1.61M | $85.14 | 40 |
| 2017 Q3 | 1.24M | $106M | -$5.5M | $85.37 | 37 |
| 2017 Q2 | 1.31M | $112M | -$10.2M | $85.53 | 35 |
| 2017 Q1 | 1.42M | $123M | -$76.2M | $86.52 | 39 |
| 2016 Q4 | 2.34M | $194M | +$21.6M | $82.52 | 34 |
| 2016 Q3 | 1.97M | $188M | -$43.1M | $95.21 | 39 |
| 2016 Q2 | 2.46M | $230M | -$55.2M | $93.58 | 44 |
| 2016 Q1 | 3.05M | $263M | +$14.7M | $86.02 | 53 |
| 2015 Q4 | 2.75M | $221M | +$51.3M | $80.63 | 36 |
| 2015 Q3 | 2.11M | $170M | -$8.92M | $80.83 | 36 |
| 2015 Q2 | 2.22M | $176M | -$62.8M | $79.35 | 27 |
| 2015 Q1 | 3M | $243M | +$9.92M | $81.02 | 29 |
| 2014 Q4 | 2.89M | $235M | +$97.3M | $81.21 | 27 |
| 2014 Q3 | 1.66M | $148M | +$6.26M | $88.80 | 32 |
| 2014 Q2 | 1.58M | $152M | -$46.7M | $96.25 | 35 |
| 2014 Q1 | 2.11M | $199M | -$60.8M | $94.53 | 27 |