| 2018-02-28 | | Chairman of the Board and CEO | Sell | 1,832 | $117.65 | $215,535.72 | - | → |
| 2018-02-27 | | Chairman of the Board and CEO | Sell | 5,000 | $116.62 | $583,121.20 | - | → |
| 2018-02-26 | | Chairman of the Board and CEO | Sell | 5,000 | $116.23 | $581,174.31 | - | → |
| 2018-02-23 | | Chairman of the Board and CEO | Sell | 5,000 | $113.81 | $569,062.15 | - | → |
| 2018-02-22 | | Chairman of the Board and CEO | Sell | 5,000 | $113.48 | $567,401.83 | - | → |
| 2018-02-21 | | Chairman of the Board and CEO | Sell | 5,000 | $114.90 | $574,492.96 | - | → |
| 2018-02-20 | | Chairman of the Board and CEO | Sell | 5,000 | $114.14 | $570,677.67 | - | → |
| 2018-02-16 | | Chairman of the Board and CEO | Sell | 5,000 | $113.23 | $566,170.00 | - | → |
| 2018-02-15 | | Chairman of the Board and CEO | Sell | 5,000 | $112.38 | $561,882.94 | - | → |
| 2018-02-14 | | Chairman of the Board and CEO | Sell | 5,000 | $108.21 | $541,060.10 | - | → |
| 2018-02-13 | | Chairman of the Board and CEO | Sell | 5,000 | $107.13 | $535,656.73 | - | → |
| 2018-02-12 | | Chairman of the Board and CEO | Sell | 10,000 | $106.78 | $1,067,769.91 | - | → |
| 2018-02-08 | | Chairman of the Board and CEO | Sell | 5,000 | $106.84 | $534,181.92 | - | → |
| 2018-02-07 | | Chairman of the Board and CEO | Sell | 5,000 | $110.74 | $553,694.54 | - | → |
| 2018-02-06 | | Chairman of the Board and CEO | Sell | 5,000 | $107.82 | $539,093.47 | - | → |
| 2018-02-05 | | Chairman of the Board and CEO | Sell | 2,200 | $109.99 | $241,974.10 | - | → |