| Insider | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
| Large Shareholder, Officer, Director | $39.48 | 202 | $7,974.96 | 1,284,630 | 2017-11-29 | Filing |
| Large Shareholder, Officer, Director | $39.31 | 15,635 | $614,611.85 | 1,284,428 | 2017-11-28 | Filing |
| Large Shareholder, Officer, Director | $39.20 | 10,789 | $422,928.80 | 1,268,793 | 2017-11-27 | Filing |
| Large Shareholder, Officer, Director | $39.47 | 900 | $35,523.00 | 1,258,004 | 2017-11-24 | Filing |
| Large Shareholder, Officer, Director | $39.43 | 7,772 | $306,449.96 | 1,257,104 | 2017-11-22 | Filing |
| Large Shareholder, Officer, Director | $39.32 | 25,190 | $990,470.80 | 1,249,332 | 2017-11-21 | Filing |
| Large Shareholder, Officer, Director | $39.38 | 14,977 | $589,794.26 | 1,224,142 | 2017-11-20 | Filing |
| Large Shareholder, Officer, Director | $39.47 | 4,220 | $166,563.40 | 1,209,165 | 2017-11-17 | Filing |
| Large Shareholder, Officer, Director | $39.45 | 1,605 | $63,317.25 | 1,204,945 | 2017-11-16 | Filing |
| Large Shareholder, Officer, Director | $38.98 | 500 | $19,490.00 | 1,203,340 | 2017-11-09 | Filing |
| Large Shareholder, Officer, Director | $38.91 | 14,606 | $568,319.46 | 1,202,840 | 2017-11-08 | Filing |
| Large Shareholder, Officer, Director | $38.95 | 44,319 | $1,726,225.05 | 1,188,234 | 2017-11-07 | Filing |
| Large Shareholder, Officer, Director | $38.62 | 26,230 | $1,013,002.60 | 1,143,915 | 2017-11-06 | Filing |
| Large Shareholder, Officer, Director | $40.79 | 1,010 | $41,197.90 | 1,117,685 | 2017-09-11 | Filing |
| Large Shareholder, Officer, Director | $40.75 | 25,281 | $1,030,200.75 | 1,116,675 | 2017-09-08 | Filing |
| Large Shareholder, Officer, Director | $40.83 | 21,553 | $880,008.99 | 1,091,394 | 2017-09-07 | Filing |
| Large Shareholder, Officer, Director | $40.65 | 5,612 | $228,127.80 | 1,069,841 | 2017-09-01 | Filing |
| Large Shareholder, Officer, Director | $40.54 | 3,955 | $160,335.70 | 1,064,229 | 2017-08-31 | Filing |
| Large Shareholder, Officer, Director | $40.21 | 10,668 | $428,960.28 | 1,059,974 | 2017-08-30 | Filing |
| Large Shareholder, Officer, Director | $40.32 | 17,170 | $692,294.40 | 1,049,306 | 2017-08-29 | Filing |