| 2019-12-02 | | President, CEO and Chairman | Sell | 10,000 | $221.37 | $2,213,684.29 | -1.0% | → |
| 2019-11-04 | | President, CEO and Chairman | Sell | 10,000 | $157.50 | $1,575,016.69 | -1.5% | → |
| 2019-10-01 | | President, CEO and Chairman | Sell | 10,000 | $149.60 | $1,496,000.93 | -1.4% | → |
| 2019-09-09 | | President, CEO and Chairman | Sell | 14,322 | $149.86 | $2,146,268.70 | -2.9% | → |
| 2019-09-03 | | President, CEO and Chairman | Sell | 10,000 | $170.13 | $1,701,274.23 | -1.3% | → |
| 2019-08-15 | | President, CEO and Chairman | Sell | 10,000 | $156.12 | $1,561,167.39 | -1.2% | → |
| 2019-07-08 | | President, CEO and Chairman | Sell | 6,000 | $146.25 | $877,476.00 | -1.0% | → |
| 2019-06-10 | | President, CEO and Chairman | Sell | 6,000 | $132.74 | $796,444.38 | -0.3% | → |
| 2019-05-13 | | President, CEO and Chairman | Sell | 6,000 | $115.73 | $694,365.05 | -0.7% | → |
| 2019-04-15 | | President, CEO and Chairman | Sell | 6,000 | $118.91 | $713,470.89 | -0.6% | → |
| 2019-03-12 | | President, CEO and Chairman | Sell | 32,566 | $142.83 | $4,651,307.47 | -1.9% | → |
| 2019-02-11 | | President, CEO and Chairman | Sell | 6,000 | $148.90 | $893,399.61 | -0.6% | → |
| 2019-01-14 | | President, CEO & Chairman | Sell | 6,000 | $140.99 | $845,930.07 | -0.9% | → |
| 2018-12-10 | | President, CEO & Chairman | Sale+OE | 11,162 | $121.67 | $1,358,041.12 | -0.9% | → |
| 2018-11-12 | | President, CEO & Chairman | Sale+OE | 4,000 | $143.74 | $574,975.75 | -0.4% | → |