| Insider | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
| Officer | $86.20 | 4,640 | $399,985.63 | 11,900 | 2017-01-30 | Filing |
| Officer | $83.50 | 2,050 | $171,175.00 | 2,050 | 2016-10-31 | Filing |
| Large Shareholder, Director, Other | $88.10 | 23,850 | $2,101,247.01 | 68,849 | 2016-05-03 | Filing |
| Large Shareholder, Director, Other | $89.57 | 43,650 | $3,909,691.22 | 44,999 | 2016-05-02 | Filing |
| Large Shareholder, Director, Other | $67.82 | 6,750 | $457,768.13 | 130,903 | 2015-08-21 | Filing |
| Large Shareholder, Director, Other | $67.82 | 143,250 | $9,714,856.88 | 3,328,768 | 2015-08-21 | Filing |
| Large Shareholder, Director, Other | $67.70 | 3,560 | $241,021.26 | 124,153 | 2015-08-20 | Filing |
| Large Shareholder, Director, Other | $67.70 | 67,638 | $4,579,268.46 | 3,185,518 | 2015-08-20 | Filing |
| Large Shareholder, Director, Other | $67.42 | 6,278 | $423,264.02 | 120,593 | 2015-08-12 | Filing |
| Large Shareholder, Director, Other | $67.42 | 68,016 | $4,585,652.32 | 3,117,880 | 2015-08-12 | Filing |
| Large Shareholder, Director, Other | $69.06 | 44,700 | $3,086,977.53 | 3,049,864 | 2015-08-07 | Filing |
| Director | $39.57 | 4,000 | $158,265.20 | 9,097 | 2014-05-02 | Filing |
| Large Shareholder, Other | $33.85 | 3,500 | $118,478.50 | 114,315 | 2013-03-04 | Filing |
| Large Shareholder, Other | $33.85 | 96,500 | $3,266,621.50 | 3,167,064 | 2013-03-04 | Filing |
| Large Shareholder, Other | $35.28 | 37,500 | $1,323,000.00 | 148,266 | 2013-02-26 | Filing |
| Large Shareholder, Other | $35.30 | 100 | $3,530.00 | 56,900 | 2013-01-17 | Filing |
| Large Shareholder, Other | $35.30 | 200 | $7,060.00 | 56,800 | 2013-01-17 | Filing |
| Large Shareholder, Other | $35.29 | 100 | $3,529.00 | 56,600 | 2013-01-17 | Filing |
| Large Shareholder, Other | $35.30 | 100 | $3,530.00 | 56,500 | 2013-01-17 | Filing |
| Large Shareholder, Other | $31.41 | 54,500 | $1,711,665.15 | 1,536,679 | 2012-12-06 | Filing |