| 2019-11-13 | Madaus Martin D | - | Sale+OE | 6,200 | $22.08 | $136,874.87 | -1.4% | → |
| 2019-11-01 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 46 | $20.86 | $959.53 | -0.3% | → |
| 2019-11-01 | Mattoon Dawn | Sr. VP, Research Products | Sell | 115 | $20.86 | $2,398.83 | -0.5% | → |
| 2019-11-01 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 3,336 | $20.86 | $69,586.96 | -0.3% | → |
| 2019-10-21 | Duffy David C. | SVP R&D and CTO | Sale+OE | 1,667 | $20.32 | $33,872.77 | -3.6% | → |
| 2019-10-01 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 46 | $21.78 | $1,001.88 | -0.3% | → |
| 2019-10-01 | Mattoon Dawn | Sr. VP, Research Products | Sell | 115 | $21.78 | $2,504.70 | -0.5% | → |
| 2019-10-01 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 3,336 | $21.78 | $72,658.08 | -0.3% | → |
| 2019-09-16 | Duffy David C. | SVP R&D and CTO | Sale+OE | 1,667 | $25.68 | $42,808.56 | -3.6% | → |
| 2019-09-04 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 47 | $25.97 | $1,220.64 | -0.3% | → |
| 2019-09-04 | Mattoon Dawn | Sr. VP, Research Products | Sell | 115 | $25.97 | $2,986.67 | -0.5% | → |
| 2019-09-04 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 3,362 | $25.97 | $87,314.50 | -0.3% | → |
| 2019-08-23 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 523 | $26.58 | $13,901.34 | - | → |
| 2019-08-20 | DEKKERS MARIJN E | Director | Sell | 89,759 | $13.63 | $1,223,309.32 | -69.4% | → |
| 2019-08-19 | Duffy David C. | SVP R&D and CTO | Sale+OE | 1,667 | $27.99 | $46,666.66 | -3.6% | → |
| 2019-08-01 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 3,167 | $31.62 | $100,125.66 | -0.1% | → |
| 2019-08-01 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 45 | $31.62 | $1,422.69 | -0.3% | → |
| 2019-08-01 | Mattoon Dawn | Sr. VP, Research Products | Sell | 113 | $31.62 | $3,572.53 | -0.2% | → |
| 2019-07-15 | Duffy David C. | SVP R&D and CTO | Sale+OE | 1,667 | $29.49 | $49,154.16 | -3.6% | → |
| 2019-07-01 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 45 | $34.64 | $1,558.66 | -0.3% | → |
| 2019-07-01 | Mattoon Dawn | Sr. VP, Research Products | Sell | 112 | $34.64 | $3,879.33 | -0.2% | → |
| 2019-07-01 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 3,145 | $34.64 | $108,933.05 | -0.1% | → |
| 2019-06-17 | Duffy David C. | SVP R&D and CTO | Sale+OE | 1,667 | $32.74 | $54,572.25 | -3.6% | → |
| 2019-06-04 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 3,073 | $26.00 | $79,886.12 | -0.1% | → |
| 2019-06-04 | Mattoon Dawn | Sr. VP, Research Products | Sell | 113 | $25.81 | $2,916.53 | -0.2% | → |
| 2019-06-04 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 46 | $25.81 | $1,187.26 | -0.3% | → |
| 2019-05-15 | Duffy David C. | SVP R&D and CTO | Sale+OE | 1,277 | $20.78 | $26,533.69 | -0.9% | → |
| 2019-05-13 | Roskey Mark T. | SVP, Commercial & Accelerator | Sell | 605 | $20.02 | $12,113.43 | -4.1% | → |
| 2019-05-13 | Mattoon Dawn | Sr. VP, Research Products | Sell | 652 | $20.02 | $13,054.47 | -2.7% | → |
| 2019-05-01 | Mattoon Dawn | Sr. VP, Research Products | Sell | 65 | $22.59 | $1,468.51 | -0.3% | → |
| 2019-05-01 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 2,142 | $22.59 | $48,393.14 | -0.2% | → |
| 2019-04-03 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 6,817 | $24.06 | $164,050.51 | -0.2% | → |
| 2019-04-02 | Mattoon Dawn | Sr. VP, Research Products | Sell | 72 | $23.27 | $1,675.44 | -0.3% | → |
| 2019-03-01 | Mattoon Dawn | Sr VP, Stgc Mrktg & Assay Tech | Sell | 75 | $25.00 | $1,875.32 | -0.4% | → |
| 2019-03-01 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 1,903 | $25.00 | $47,583.18 | -0.2% | → |
| 2019-02-26 | Mattoon Dawn | Sr VP, Stgc Mrktg & Assay Tech | Sell | 890 | $23.72 | $21,113.92 | -5.0% | → |
| 2019-02-01 | HRUSOVSKY E KEVIN | Chairman, President & CEO | Sell | 1,952 | $20.90 | $40,795.63 | -0.2% | → |