| 2020-07-21 | Lopresti Angelo P | SVP, Secretary & Gen Counsel | Sale+OE | 7,323 | $181.33 | $1,327,845.76 | -3.9% | → |
| 2020-07-20 | Burgomaster Thomas J | Chief Accounting Officer | Sale+OE | 741 | $180.01 | $133,387.41 | -10.7% | → |
| 2020-07-15 | Burgomaster Thomas J | Chief Accounting Officer | Sale+OE | 2,331 | $170.09 | $396,479.79 | -27.3% | → |
| 2020-07-15 | Lopresti Angelo P | SVP, Secretary & Gen Counsel | Sale+OE | 5,400 | $170.10 | $918,540.00 | -11.4% | → |
| 2020-07-01 | Ness Trevor | SVP, Worldwide Sales & Mrkting | Sale+OE | 6,000 | $156.41 | $938,477.52 | -5.9% | → |
| 2020-06-22 | Burgomaster Thomas J | Chief Accounting Officer | Sale+OE | 3,087 | $160.08 | $494,158.98 | -12.2% | → |
| 2020-06-10 | Valentin Gapontsev Trust I | - | Sell | 7,300 | $166.66 | $1,216,622.50 | - | → |
| 2020-06-05 | Lopresti Angelo P | SVP, Secretary & Gen Counsel | Sale+OE | 7,600 | $166.83 | $1,267,937.00 | -4.1% | → |
| 2020-06-01 | Ness Trevor | SVP, Worldwide Sales & Mrkting | Sale+OE | 6,000 | $157.99 | $947,960.77 | -4.6% | → |
| 2020-05-21 | Lopresti Angelo P | SVP, Secretary & Gen Counsel | Sale+OE | 4,750 | $160.00 | $760,000.00 | -5.4% | → |
| 2020-05-18 | Ovtchinnikov Alexander | SVP, Components | Sale+OE | 24,555 | $150.81 | $3,703,128.60 | -12.7% | → |
| 2020-05-12 | Mammen Timothy PV | SVP, Chief Financial Officer | Sale+OE | 14,200 | $153.69 | $2,182,467.27 | -5.5% | → |
| 2020-05-12 | Lopresti Angelo P | SVP, Secretary & Gen Counsel | Sale+OE | 4,750 | $155.07 | $736,564.00 | -5.4% | → |
| 2020-05-12 | Valentin Gapontsev Trust I | - | Sell | 23,100 | $153.50 | $3,545,955.88 | - | → |