| Insider | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
| Large Shareholder | $170.12 | 17,322 | $2,946,818.64 | 4,322,218 | 2018-12-18 | Filing |
| Large Shareholder | $171.39 | 9,936 | $1,702,931.04 | 4,339,540 | 2018-12-17 | Filing |
| Large Shareholder | $172.42 | 15,000 | $2,586,300.00 | 4,349,476 | 2018-12-14 | Filing |
| Large Shareholder | $174.70 | 32,600 | $5,695,220.00 | 4,364,476 | 2018-12-13 | Filing |
| Large Shareholder | $175.20 | 80,000 | $14,016,000.00 | 4,397,076 | 2018-12-12 | Filing |
| Large Shareholder | $174.88 | 17,000 | $2,972,960.00 | 4,477,076 | 2018-12-11 | Filing |
| Large Shareholder | $179.69 | 5,250 | $943,372.50 | 4,494,076 | 2018-12-03 | Filing |
| Large Shareholder | $181.67 | 67,027 | $12,176,795.09 | 4,499,326 | 2018-11-30 | Filing |
| Large Shareholder | $182.57 | 171,441 | $31,299,983.37 | 4,566,353 | 2018-11-29 | Filing |
| | $145.60 | 2,740 | $398,944.00 | 8,652 | 2018-09-27 | Filing |
| | $145.81 | 6,000 | $874,887.00 | 13,060 | 2018-09-24 | Filing |
| | $150.01 | 12,327 | $1,849,173.27 | 117,568 | 2017-09-18 | Filing |
| | $152.51 | 24,467 | $3,731,462.17 | 129,895 | 2017-09-15 | Filing |
| | $153.39 | 2,000 | $306,778.00 | 9,758 | 2017-09-15 | Filing |
| | $165.00 | 2,000 | $330,000.00 | 14,135 | 2017-03-02 | Filing |
| | $165.20 | 360 | $59,472.00 | 3,003 | 2016-11-25 | Filing |
| | $164.05 | 10,000 | $1,640,495.00 | 12,679 | 2016-11-25 | Filing |
| | $164.05 | 30,000 | $4,921,485.00 | 129,895 | 2016-11-25 | Filing |
| | $164.50 | 2,000 | $329,003.80 | 9,758 | 2016-11-25 | Filing |
| Officer | $168.75 | 600 | $101,249.22 | 6,221 | 2016-06-22 | Filing |