Ipg Photonics Corp
A maker of high-power fiber lasers, IPG Photonics builds the machines that cut, weld, and braze metal in factories worldwide, plus handheld welders like the LightWELD. Founded in 1990 by physicist Valentin Gapontsev—called the "father of the fiber laser industry"—the company's name began as "IRE-Polus," blending a Russian electronics institute with the word for "pole." Nearly every component, from semiconductor diodes to finished lasers, is made in-house.
Sold 713.0K
Sold 408.2K
Granted 30.5K · Sold 1.0K
Granted 103.8K
Granted 49.8K · Bought 3.0K · Sold 10.0K
Granted 23.4K · Sold 5.8K
Granted 87.9K · Sold 26.0K
Granted 27.5K
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Granted 26.5K · Sold 12.4K
Granted 14.0K · Bought 2.7K
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Granted 1.8K · Sold 500
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Valentin Gapontsev Trust I10% owner · 129 transactions | -9.9% | 6.73M | — | — | 713.0K |
| Ip Fibre Devices LTD10% owner · 46 transactions | -5.9% | 6.53M | — | — | 408.2K |
| Pavlova Natalia +1 co-filerDirector, SVP, Chief Scientist · 20 transactions | — | 1.56M | 30.5K | — | 1.0K |
| Gitin Mark MiltonCEO, Director · 6 transactions | — | 87.2K | 103.8K | — | — |
| Mammen Timothy PVSVP, Chief Financial Officer · 15 transactions | +62.6% | 76.4K | 49.8K | 3.0K | 10.0K |
| Ovtchinnikov AlexanderSVP, Chief Technology Officer, 10% owner · 10 transactions | +24.8% | 76.1Kas of Mar 2024 | 23.4K | — | 5.8K |
| Shcherbakov Eugene ADirector, 10% owner · 30 transactions | +73.6% | 73.4Kas of May 2025 | 87.9K | — | 26.0K |
| Child Michael CDirector · 6 transactions | +66.9% | 68.6Kas of Jun 2024 | 27.5K | — | — |
| Lopresti Angelo PSVP, Secretary & Gen Counsel, 10% owner · 19 transactions | +51.1% | 60.8K | 46.2K | — | 10.5K |
| Scherbakov Eugene ADirector, 10% owner · 18 transactions | — | 51.3K | 7.6K | — | 16.2K |
| Ness TrevorSVP, Chief Revenue Officer · 20 transactions | +159.9% | 38.4K | 41.0K | — | 6.7K |
| Stukalin Felix ISVP, Chief Operating Officer, Director · 6 transactions | +31.1% | 37.9Kas of Mar 2023 | 16.3K | — | — |
| Meurice EricDirector · 47 transactions | +110% | 25.2K | 26.5K | — | 12.4K |
| Peeler John RDirector · 7 transactions | +404.5% | 20.9K | 14.0K | 2.7K | — |
| Dougherty GregDirector · 5 transactions | +326.6% | 18.3K | 14.0K | — | — |
| Beecher Gregory RDirector · 5 transactions | — | 12.2K | 12.2K | — | — |
| Burgomaster Thomas JChief Accounting Officer · 11 transactions | +69.2% | 11.6Kas of Mar 2025 | 7.8K | — | 1.3K |
| Kennedy Kolleen TDirector · 4 transactions | — | 11.5K | 11.5K | — | — |
| Desmond Jeanmarie F.Director · 10 transactions | +529.8% | 10.5K | 14.0K | — | 5.2K |
| Agnes TangDirector · 12 transactions | — | 10.3K | 13.9K | — | 4.3K |
| Seifert Thomas JDirector · 1 transaction | +41.7% | 8.9Kas of May 2022 | 2.6K | — | — |
| Bucher PaulusSVP, Global Operations · 2 transactions | — | 6.7K | 6.7K | — | — |
| Buttarazzi Mary E.VP, Corp Controller and CAO · 3 transactions | — | 4.7K | 1.8K | — | 500 |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: -1.22M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.