| 2018-07-09 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 1,000 | $26.19 | $26,185.00 | - | → |
| 2018-06-13 | Sidman Thomas J. | Chief Legal Officer | Buy | 1,000 | $24.25 | $24,250.00 | +4.3% | → |
| 2018-06-08 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $24.70 | $22,229.46 | -12.6% | → |
| 2018-06-06 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 50,895 | $23.78 | $1,210,279.29 | +0.7% | → |
| 2018-05-11 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $28.75 | $25,870.86 | -10.8% | → |
| 2018-04-20 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 24,052 | $31.77 | $764,153.87 | +0.2% | → |
| 2018-04-17 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 74,048 | $30.00 | $2,221,787.16 | +0.8% | → |
| 2018-04-13 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $29.66 | $26,689.95 | -9.8% | → |
| 2018-03-09 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $37.16 | $33,447.46 | -4.5% | → |
| 2018-02-09 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $30.02 | $27,015.03 | -8.2% | → |
| 2018-01-12 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $33.45 | $30,105.00 | -7.4% | → |
| 2018-01-10 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 7,132 | $31.97 | $227,990.78 | +0.3% | → |
| 2018-01-03 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 6,403 | $31.93 | $204,421.30 | - | → |
| 2017-12-08 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $31.91 | $28,718.73 | -6.9% | → |
| 2017-12-08 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 99,409 | $31.91 | $3,172,117.16 | +0.9% | → |
| 2017-11-30 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 76,417 | $31.84 | $2,432,937.41 | +1.7% | → |
| 2017-11-15 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 26,863 | $30.54 | $820,389.30 | +0.6% | → |
| 2017-11-13 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 19,578 | $29.61 | $579,758.87 | +0.2% | → |
| 2017-11-10 | Sidman Thomas J. | Chief Legal Officer | Buy | 487 | $29.25 | $14,244.75 | +2.1% | → |
| 2017-11-10 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $29.54 | $26,582.58 | -6.4% | → |
| 2017-11-07 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 25,257 | $29.56 | $746,504.06 | +0.4% | → |
| 2017-10-13 | Rohmann Richard E. | EVP and Secretary | Sell | 900 | $30.60 | $27,540.00 | -3.1% | → |
| 2017-08-22 | Sidman Thomas J. | Chief Legal Officer | Buy | 6 | $27.00 | $162.00 | - | → |
| 2017-06-08 | Rohmann Richard E. | EVP and Secretary | Sell | 2,807 | $24.65 | $69,192.55 | -15.8% | → |
| 2017-06-08 | Frazier Harvey Leon | Chief Sales & Marketing | Sell | 139 | $24.65 | $3,426.35 | -1.0% | → |
| 2017-06-08 | Creede Frank | Chief Technical Officer | Sell | 2,169 | $24.65 | $53,465.85 | -4.8% | → |
| 2016-12-01 | Sidman Thomas J. | Chief Legal Officer | Buy | 1,000 | $23.00 | $23,000.00 | +7.9% | → |