| 2020-04-27 | Madaus Martin D | - | Sale+OE | 2,200 | $26.71 | $58,772.34 | -1.3% | → |
| 2020-04-23 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 10,000 | $24.29 | $242,937.61 | -0.2% | → |
| 2020-04-15 | Duffy David C. | SVP R&D and CTO | Sell | 1,667 | $20.87 | $34,790.29 | -3.1% | → |
| 2020-04-15 | Madaus Martin D | - | Sale+OE | 7,800 | $21.07 | $164,327.87 | -1.4% | → |
| 2020-04-14 | Chaubal Amol | Chief Financial Officer | Sell | 1,463 | $20.34 | $29,753.18 | -5.3% | → |
| 2020-04-13 | Roskey Mark T. | SVP, Commercial & Accelerator | Sale+OE | 5,000 | $21.00 | $105,013.27 | -10.1% | → |
| 2020-04-09 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 10,000 | $21.46 | $214,551.72 | -0.2% | → |
| 2020-04-06 | Madaus Martin D | - | Sell | 4,400 | $20.35 | $89,526.31 | -1.2% | → |
| 2020-04-03 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 5,500 | $20.02 | $110,108.76 | -0.2% | → |
| 2020-04-03 | Madaus Martin D | - | Sale+OE | 11,200 | $20.17 | $225,882.50 | -2.0% | → |
| 2020-04-01 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 3,233 | $17.44 | $56,399.04 | -0.3% | → |
| 2020-04-01 | Mattoon Dawn | Sr. VP, Research Products | Sell | 97 | $17.44 | $1,692.15 | -0.3% | → |
| 2020-03-31 | Roskey Mark T. | SVP, Commercial & Accelerator | Sale+OE | 5,093 | $17.99 | $91,622.37 | -10.4% | → |
| 2020-03-19 | Duffy David C. | SVP R&D and CTO | Sell | 1,667 | $11.46 | $19,103.82 | -3.0% | → |
| 2020-03-13 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 566 | $16.04 | $9,080.56 | -2.5% | → |
| 2020-03-13 | WALT DAVID R | - | Buy | 54,064 | $16.66 | $900,911.68 | +4.4% | → |
| 2020-03-13 | Mattoon Dawn | Sr. VP, Research Products | Sell | 566 | $16.04 | $9,080.56 | -1.7% | → |
| 2020-03-10 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 5,500 | $20.53 | $112,915.00 | -0.5% | → |
| 2020-03-05 | Madaus Martin D | - | Sale+OE | 7,800 | $22.99 | $179,306.95 | -1.3% | → |
| 2020-03-02 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 8,830 | $22.66 | $200,080.08 | -0.2% | → |
| 2020-03-02 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 46 | $22.93 | $1,054.57 | -0.2% | → |
| 2020-03-02 | Mattoon Dawn | Sr. VP, Research Products | Sell | 115 | $22.93 | $2,636.42 | -0.3% | → |
| 2020-02-21 | Madaus Martin D | - | Sale+OE | 5,500 | $28.15 | $154,840.68 | -2.6% | → |