| 2018-03-26 | | Chairman of the Board and CEO | Sell | 6,009 | $116.67 | $701,051.53 | - | → |
| 2018-03-22 | | Chairman of the Board and CEO | Sell | 5,000 | $119.06 | $595,309.10 | - | → |
| 2018-03-21 | | Chairman of the Board and CEO | Sell | 10,000 | $123.98 | $1,239,787.01 | - | → |
| 2018-03-19 | | Chairman of the Board and CEO | Sell | 10,000 | $125.63 | $1,256,258.90 | - | → |
| 2018-03-15 | | Chairman of the Board and CEO | Sell | 5,000 | $127.65 | $638,254.43 | - | → |
| 2018-03-14 | | Chairman of the Board and CEO | Sell | 5,000 | $127.67 | $638,362.14 | - | → |
| 2018-03-13 | | Chairman of the Board and CEO | Sell | 5,000 | $127.00 | $635,023.34 | - | → |
| 2018-03-12 | | Chairman of the Board and CEO | Sell | 10,000 | $127.18 | $1,271,791.90 | - | → |
| 2018-03-08 | | Chairman of the Board and CEO | Sell | 5,000 | $126.40 | $631,975.09 | - | → |
| 2018-03-07 | | Chairman of the Board and CEO | Sell | 5,000 | $125.03 | $625,155.21 | - | → |
| 2018-03-06 | | Chairman of the Board and CEO | Sell | 5,000 | $123.89 | $619,428.98 | - | → |
| 2018-03-05 | | Chairman of the Board and CEO | Sell | 5,000 | $121.63 | $608,166.21 | - | → |
| 2018-03-02 | | Chairman of the Board and CEO | Sell | 5,000 | $120.20 | $601,014.90 | - | → |
| 2018-03-01 | | Chairman of the Board and CEO | Sell | 5,000 | $119.88 | $599,387.92 | - | → |
| 2018-02-28 | | Chairman of the Board and CEO | Sell | 3,168 | $116.82 | $370,092.73 | - | → |