| 2015-05-13 | GAPONTSEV VALENTIN P | CEO & Chairman of the Board | Sell | 5,000 | $95.09 | $475,450.00 | -1.7% | → |
| 2015-05-13 | Blair Robert A | - | Sale+OE | 13,167 | $93.79 | $1,234,926.12 | -15.6% | → |
| 2015-05-04 | GAPONTSEV VALENTIN P | CEO & Chairman of the Board | Sell | 10,000 | $91.96 | $919,600.00 | -3.3% | → |
| 2015-04-28 | GAPONTSEV VALENTIN P | CEO & Chairman of the Board | Sell | 100 | $100.15 | $10,015.00 | - | → |
| 2015-04-28 | GAUTHIER HENRY E | - | Sale+OE | 100 | $101.08 | $10,108.00 | -0.6% | → |
| 2015-04-27 | Valentin Gapontsev Trust I | - | Sell | 5,000 | $94.44 | $472,200.00 | - | → |
| 2015-04-13 | GAPONTSEV VALENTIN P | CEO & Chairman of the Board | Sell | 500 | $100.06 | $50,030.00 | -0.2% | → |
| 2015-04-13 | GAUTHIER HENRY E | - | Sale+OE | 1,002 | $100.05 | $100,250.10 | -6.0% | → |
| 2015-04-09 | GAPONTSEV VALENTIN P | CEO & Chairman of the Board | Sell | 5,000 | $95.41 | $477,050.00 | -1.6% | → |
| 2015-04-06 | GAPONTSEV VALENTIN P | CEO & Chairman of the Board | Sell | 10,000 | $92.51 | $925,100.00 | -3.2% | → |
| 2015-03-25 | Shcherbakov Eugene A | SVP, MD IPG Laser GmbH | Sell | 3,075 | $94.32 | $290,034.00 | -19.9% | → |
| 2015-03-25 | Valentin Gapontsev Trust I | - | Sell | 5,000 | $93.58 | $467,900.00 | - | → |
| 2015-03-06 | Samartsev Igor | Chief Technology Officer | Sale+OE | 13,125 | $95.97 | $1,259,606.25 | -3.6% | → |
| 2015-02-25 | Valentin Gapontsev Trust I | - | Sell | 5,000 | $96.94 | $484,700.00 | - | → |
| 2015-02-25 | Blair Robert A | - | Sell | 5,000 | $97.03 | $485,150.00 | -17.4% | → |
| 2015-02-24 | Ness Trevor | SVP, Worldwide Sales & Mrkting | Sale+OE | 7,500 | $96.71 | $725,325.00 | -43.7% | → |
| 2015-02-24 | GAPONTSEV VALENTIN P | CEO & Chairman of the Board | Sell | 20,000 | $96.34 | $1,926,800.00 | -6.0% | → |
| 2015-02-24 | HURLEY WILLIAM S | - | Sale+OE | 13,000 | $96.06 | $1,248,780.00 | -53.7% | → |
| 2015-02-20 | Mammen Timothy PV | SVP, Chief Financial Officer | Sale+OE | 5,000 | $91.71 | $458,550.00 | -17.1% | → |
| 2015-02-09 | Samartsev Igor | Chief Technology Officer | Sell | 15,456 | $85.29 | $1,318,242.24 | -4.3% | → |
| 2015-02-09 | GAUTHIER HENRY E | - | Sale+OE | 10,000 | $85.29 | $852,900.00 | -38.8% | → |
| 2015-02-09 | Lopresti Angelo P | SVP, Secretary & Gen Counsel | Sale+OE | 6,563 | $85.27 | $559,627.01 | -11.9% | → |
| 2015-02-09 | Mammen Timothy PV | SVP, Chief Financial Officer | Sale+OE | 12,500 | $83.23 | $1,040,325.00 | -20.5% | → |
| 2015-02-09 | Ovtchinnikov Alexander | SVP, Components | Sell | 42,223 | $83.32 | $3,517,821.28 | -21.0% | → |
| 2015-02-04 | Ovtchinnikov Alexander | SVP, Components | Sell | 2,187 | $78.05 | $170,695.35 | -2.0% | → |
| 2015-02-03 | Mammen Timothy PV | SVP, Chief Financial Officer | Sale+OE | 1,800 | $77.53 | $139,554.00 | -6.9% | → |