| 2018-04-13 | | Chairman of the Board and CEO | Sell | 5,000 | $119.50 | $597,511.43 | - | → |
| 2018-04-12 | | Chairman of the Board and CEO | Sell | 5,000 | $120.66 | $603,320.52 | - | → |
| 2018-04-11 | | Chairman of the Board and CEO | Sell | 5,000 | $119.62 | $598,085.50 | - | → |
| 2018-04-10 | | Chairman of the Board and CEO | Sell | 5,000 | $119.08 | $595,402.12 | - | → |
| 2018-04-09 | | Chairman of the Board and CEO | Sell | 10,000 | $117.72 | $1,177,214.92 | - | → |
| 2018-04-05 | | Chairman of the Board and CEO | Sell | 5,000 | $119.65 | $598,261.40 | - | → |
| 2018-04-04 | | Chairman of the Board and CEO | Sell | 5,000 | $116.77 | $583,837.03 | - | → |
| 2018-04-03 | | Chairman of the Board and CEO | Sell | 10,000 | $115.40 | $1,154,011.64 | - | → |
| 2018-03-29 | | Chairman of the Board and CEO | Sell | 5,000 | $115.22 | $576,091.10 | - | → |
| 2018-03-28 | | Chairman of the Board and CEO | Sell | 5,000 | $113.21 | $566,071.13 | - | → |
| 2018-03-27 | | Chairman of the Board and CEO | Sell | 5,000 | $116.87 | $584,357.94 | - | → |
| 2018-03-26 | | Chairman of the Board and CEO | Sell | 3,991 | $116.95 | $466,758.91 | - | → |