Key facts
- IPGP - IPG PHOTONICS CORP has 24 insiders with reported activity on this page.
- Net insider value flow over the last year: -$72,753,768.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 24 Insiders of IPG PHOTONICS CORP
- Symbol
- IPGP on Nasdaq
- Location
- Marlborough, MA
Change
- Buy value: ; sell value: $72,753,768.
- Net share flow: -825,850.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$72,753,768.
Buys
$0
Shares: 0
Insiders: 0
Sells
$72,753,768
Shares: 825,850
Insiders: 9
Net
-$72,753,768
Shares: -825,850
Insiders: -9
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 2,190 | $0 | $236,540 | -$236,540 |
| 3-6 | 0 | 405,732 | $0 | $38,734,753 | -$38,734,753 |
| 6-9 | 0 | 412,068 | $0 | $33,367,029 | -$33,367,029 |
| 9-12 | 0 | 5,860 | $0 | $415,446 | -$415,446 |
IPG PHOTONICS CORP executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Valentin Gapontsev Trust I | 10%+ Owner | $1,008,182,658 | -$35,008,918 | -3.4% | Filing P/S | 17 Feb 2026 |
| IP FIBRE DEVICES LTD | 10%+ Owner | $894,473,274 | -$34,154,627 | -3.7% | Filing P/S | 20 Feb 2026 |
| Igor Samartsev | SVP, Chief Scientist | $109,837,147 | Median | 12 May 2026 | ||
| Natalia Pavlova | Director | $109,837,147 | Median | 12 May 2026 | ||
| Mark Milton Gitin | CEO, Director | $12,087,730 | Mixed | 01 Mar 2026 | ||
| Timothy Pv Mammen | SVP, Chief Financial Officer | $11,369,358 | Mixed | 01 Mar 2026 | ||
| Angelo P. Lopresti | SVP, Secretary & Gen Counsel, 10%+ Owner | $8,004,850 | -$825,315 | -9.3% | Mixed | 01 Mar 2026 |
| Eugene A. Scherbakov | Director, 10%+ Owner | $6,744,015 | -$1,454,519 | -18% | Mixed | 01 Mar 2026 |
| Alexander Ovtchinnikov | SVP, Chief Technology Officer, 10%+ Owner | $6,432,884 | Mixed | 01 Mar 2024 | ||
| Michael C. Child | Director | $5,846,850 | Mixed | 18 Jun 2024 | ||
| Trevor Ness | SVP, Chief Revenue Officer | $5,055,577 | -$550,874 | -9.8% | Mixed | 01 Mar 2026 |
| Felix I. Stukalin | SVP, Chief Operating Officer, Director | $4,007,471 | Mixed | 01 Mar 2023 | ||
| Eric Meurice | Director | $2,892,137 | -$274,926 | -8.7% | Median | 12 May 2026 |
| Greg Dougherty | Director | $2,100,893 | Median | 12 May 2026 | ||
| John R. Peeler | Director | $2,082,787 | Median | 12 May 2026 | ||
| Gregory R. Beecher | Director | $1,399,831 | Median | 12 May 2026 | ||
| Kolleen T. Kennedy | Director | $1,319,274 | Median | 12 May 2026 | ||
| Tang Agnes | Director | $1,271,834 | -$144,363 | -10% | Median | 12 May 2026 |
| Jeanmarie F. Desmond | Director | $1,107,111 | -$282,117 | -20% | Filing P/S | 14 May 2026 |
| Thomas J. Seifert | Director | $987,191 | Mixed | 24 May 2022 | ||
| Thomas J. Burgomaster | Chief Accounting Officer | $985,423 | Mixed | 01 Mar 2025 | ||
| Paulus Bucher | SVP, Global Operations | $623,043 | Mixed | 18 Feb 2026 | ||
| Mary E. Buttarazzi | VP, Corp Controller and CAO | $551,928 | -$58,110 | -9.5% | Filing P/S | 17 Mar 2026 |
| Valentin P. Gapontsev | Former Exec Chair and Director, Director, 10%+ Owner | Mixed | 31 Dec 2021 |
Top shareholders of IPG PHOTONICS CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Valentin Gapontsev Trust I |
3/4/5
13D/G
|
10%+ Owner · Shcherbakov Eugene A |
37%
from 13D/G
|
6,726,599
|
$1,008,182,658 | -$35,008,918 | 17 Feb 2026 | |
| IP FIBRE DEVICES LTD |
3/4/5
|
10%+ Owner |
15%
|
6,529,002
|
$894,473,274 | -$34,154,627 | 20 Feb 2026 | |
| Igor Samartsev |
3/4/5
|
SVP, Chief Scientist |
2.2%
|
958,523
|
$109,837,147 | — | 12 May 2026 | |
| Natalia Pavlova |
3/4/5
|
Director |
2.2%
|
958,523
|
$109,837,147 | — | 12 May 2026 | |
| Mark Milton Gitin |
3/4/5
|
CEO, Director |
0.22%
|
91,873
|
$12,087,730 | — | 01 Mar 2026 | |
| Timothy Pv Mammen |
3/4/5
|
SVP, Chief Financial Officer |
0.2%
|
86,413
|
$11,369,358 | — | 01 Mar 2026 | |
| Angelo P. Lopresti |
3/4/5
|
SVP, Secretary & Gen Counsel, 10%+ Owner |
0.14%
|
60,841
|
$8,004,850 | -$825,315 | 01 Mar 2026 | |
| Eugene A. Scherbakov |
3/4/5
|
Director, 10%+ Owner |
0.12%
|
51,258
|
$6,744,015 | -$1,454,519 | 01 Mar 2026 | |
| Trevor Ness |
3/4/5
|
SVP, Chief Revenue Officer |
0.09%
|
38,425
|
$5,055,577 | -$550,874 | 01 Mar 2026 | |
| Eric Meurice |
3/4/5
|
Director |
0.06%
|
25,239
|
$2,892,137 | -$274,926 | 12 May 2026 | |
| Greg Dougherty |
3/4/5
|
Director |
0.04%
|
18,334
|
$2,100,893 | — | 12 May 2026 | |
| John R. Peeler |
3/4/5
|
Director |
0.04%
|
18,176
|
$2,082,787 | — | 12 May 2026 | |
| Gregory R. Beecher |
3/4/5
|
Director |
0.03%
|
12,216
|
$1,399,831 | — | 12 May 2026 | |
| Kolleen T. Kennedy |
3/4/5
|
Director |
0.03%
|
11,513
|
$1,319,274 | — | 12 May 2026 | |
| Tang Agnes |
3/4/5
|
Director |
0.03%
|
11,099
|
$1,271,834 | -$144,363 | 12 May 2026 | |
| Jeanmarie F. Desmond |
3/4/5
|
Director |
0.02%
|
10,486
|
$1,107,111 | -$282,117 | 14 May 2026 | |
| Paulus Bucher |
3/4/5
|
SVP, Global Operations |
0.02%
|
6,716
|
$623,043 | — | 18 Feb 2026 | |
| Mary E. Buttarazzi |
3/4/5
|
VP, Corp Controller and CAO |
0.01%
|
4,749
|
$551,928 | -$58,110 | 17 Mar 2026 | |
| First Eagle Investment Management, LLC |
13F
|
Company |
11%
|
4,593,349
|
$526,351,862 | — | 31 Mar 2026 | |
| BlackRock, Inc. |
13F
|
Company |
6.4%
|
2,713,341
|
$310,921,715 | — | 31 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
4%
|
1,701,269
|
$194,929,072 | — | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
|
Company |
3.8%
|
1,639,991
|
$187,926,569 | — | 31 Mar 2026 | |
| LAZARD ASSET MANAGEMENT LLC |
13F
|
Company |
3.2%
|
1,374,460
|
$157,499,371 | — | 31 Mar 2026 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
3.2%
|
1,350,328
|
$154,734,086 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
2.7%
|
1,138,725
|
$130,486,498 | — | 31 Mar 2026 | |
| Neuberger Berman Group LLC |
13F
|
Company |
2%
|
844,398
|
$96,514,739 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
1.9%
|
819,259
|
$93,878,889 | — | 31 Mar 2026 | |
| WESTWOOD HOLDINGS GROUP INC |
13F
|
Company |
1.8%
|
779,528
|
$89,326,113 | — | 31 Mar 2026 | |
| M&G Plc |
13F
|
Company |
1.4%
|
596,812
|
$68,633,380 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
1.4%
|
592,686
|
$67,916,070 | — | 31 Mar 2026 | |
| Invesco Ltd. |
13F
|
Company |
1.4%
|
586,917
|
$67,254,818 | — | 31 Mar 2026 | |
| FULLER & THALER ASSET MANAGEMENT, INC. |
13F
|
Company |
1.3%
|
551,992
|
$63,252,726 | — | 31 Mar 2026 | |
| DISCIPLINED GROWTH INVESTORS INC /MN |
13F
|
Company |
1.2%
|
528,737
|
$60,587,973 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.2%
|
500,367
|
$57,351,190 | — | 31 Mar 2026 | |
| SEGALL BRYANT & HAMILL, LLC |
13F
|
Company |
1.1%
|
469,471
|
$53,796,682 | — | 31 Mar 2026 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
1%
|
429,732
|
$47,700,252 | — | 31 Mar 2026 | |
| Allianz Asset Management GmbH |
13F
|
Company |
0.83%
|
352,665
|
$40,411,882 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.76%
|
324,182
|
$37,148,015 | — | 31 Mar 2026 | |
| EMERALD ADVISERS, LLC |
13F
|
Company |
0.71%
|
304,916
|
$34,940,324 | — | 31 Mar 2026 | |
| BAILLIE GIFFORD & CO |
13F
|
Company |
0.63%
|
269,355
|
$30,865,389 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.61%
|
258,600
|
$29,632,974 | — | 31 Mar 2026 | |
| PACIFIC HEIGHTS ASSET MANAGEMENT LLC |
13F
|
Company |
0.53%
|
225,000
|
$25,782,750 | — | 31 Mar 2026 | |
| EXCHANGE TRADED CONCEPTS, LLC |
13F
|
Company |
0.51%
|
215,794
|
$24,727,834 | — | 31 Mar 2026 | |
| AMERICAN CAPITAL MANAGEMENT INC |
13F
|
Company |
0.49%
|
208,918
|
$23,939,914 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.47%
|
202,457
|
$23,199,547 | — | 31 Mar 2026 | |
| SEI INVESTMENTS CO |
13F
|
Company |
0.45%
|
192,688
|
$22,080,142 | — | 31 Mar 2026 | |
| EMERALD MUTUAL FUND ADVISERS TRUST |
13F
|
Company |
0.45%
|
192,457
|
$22,053,648 | — | 31 Mar 2026 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.44%
|
187,046
|
$21,433,595 | — | 31 Mar 2026 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.44%
|
185,773
|
$21,287,728 | — | 31 Mar 2026 | |
| Legal & General Group Plc |
13F
|
Company |
0.42%
|
177,192
|
$20,304,431 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for IPG PHOTONICS CORP
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Jeanmarie F. Desmond | IPGP | Common Stock | Sale | -13.9% | $178,430 | $105.58 | -1,690 | 10,486 | 14 May 2026 | Direct |
| Kennedy Kolleen T. | IPGP | Common Stock | Award | 26.8% | 2,436 | 11,513 | 12 May 2026 | Direct | ||
| John R. Peeler | IPGP | Common Stock | Award | 15.5% | 2,436 | 18,176 | 12 May 2026 | Direct | ||
| Greg Dougherty | IPGP | Common Stock | Award | 15.3% | 2,436 | 18,334 | 12 May 2026 | Direct | ||
| Jeanmarie F. Desmond | IPGP | Common Stock | Award | 25% | 2,436 | 12,176 | 12 May 2026 | Direct | ||
| Eric Meurice | IPGP | Common Stock | Award | 10.7% | 2,436 | 25,239 | 12 May 2026 | Direct | ||
| Igor Samartsev | IPGP | Common Stock | Award | 2.15% | 2,436 | 115,701 | 12 May 2026 | By Wife | ||
| Igor Samartsev | IPGP | Common Stock | Award | 2.15% | 2,436 | 115,701 | 12 May 2026 | By Wife | ||
| Tang Agnes | IPGP | Common Stock | Award | 28.1% | 2,436 | 11,099 | 12 May 2026 | Direct | ||
| Gregory R. Beecher | IPGP | Common Stock | Award | 24.9% | 2,436 | 12,216 | 12 May 2026 | Direct | ||
| Mary E. Buttarazzi | IPGP | Common Stock | Sale | -9.53% | $58,110 | $116.22 | -500 | 4,749 | 17 Mar 2026 | Direct |
| Mark Milton Gitin | IPGP | Common Stock | Tax liability | -7.64% | -7,603 | 91,873 | 01 Mar 2026 | Direct | ||
| Angelo P. Lopresti | IPGP | Common Stock | Tax liability | -5.95% | -3,848 | 60,841 | 01 Mar 2026 | Direct | ||
| Timothy Pv Mammen | IPGP | Common Stock | Tax liability | -4.75% | -4,310 | 86,413 | 01 Mar 2026 | Direct | ||
| Trevor Ness | IPGP | Common Stock | Tax liability | -8.13% | -3,402 | 38,425 | 01 Mar 2026 | Direct | ||
| Mary E. Buttarazzi | IPGP | Common Stock | Tax liability | -7.65% | -435 | 5,249 | 01 Mar 2026 | Direct | ||
| Eugene A. Scherbakov | IPGP | Common Stock | Tax liability | -12.4% | -7,237 | 51,258 | 01 Mar 2026 | Direct | ||
| Igor Samartsev | IPGP | Common Stock | Tax liability | -7.41% | -836 | 10,449 | 01 Mar 2026 | Direct | ||
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.02% | $221,768 | $136.89 | -1,620 | 6,529,002 | 24 Feb 2026 | Direct |
| Eugene A. Scherbakov | IPGP | Common Stock | Sale | -4.41% | $372,141 | $137.83 | -2,700 | 58,495 | 24 Feb 2026 | Direct |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.51% | $4,456,899 | $133.52 | -33,380 | 6,530,622 | 23 Feb 2026 | Direct |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.44% | $3,848,311 | $131.94 | -29,167 | 6,564,002 | 20 Feb 2026 | Direct |
| Mary E. Buttarazzi | IPGP | Common Stock | Award | 45.9% | 1,789 | 5,684 | 18 Feb 2026 | Direct | ||
| Trevor Ness | IPGP | Common Stock | Award | 12.4% | 4,621 | 41,827 | 18 Feb 2026 | Direct | ||
| Timothy Pv Mammen | IPGP | Common Stock | Award | 7.27% | 6,146 | 90,723 | 18 Feb 2026 | Direct | ||
| Paulus Bucher | IPGP | Common Stock | Award | 60.5% | 2,531 | 6,716 | 18 Feb 2026 | Direct | ||
| Igor Samartsev | IPGP | Common Stock | Award | 1,688 | 1,688 | 18 Feb 2026 | Direct | |||
| Angelo P. Lopresti | IPGP | Common Stock | Award | 7.41% | 4,465 | 64,689 | 18 Feb 2026 | Direct | ||
| Mark Milton Gitin | IPGP | Common Stock | Award | 25% | 19,887 | 99,476 | 18 Feb 2026 | Direct | ||
| Valentin Gapontsev Trust I | IPGP | Common Stock | Sale | -0.98% | $8,700,865 | $130.84 | -66,500 | 6,726,599 | 17 Feb 2026 | Direct |
| Igor Samartsev | IPGP | Common Stock | Options Exercise | 54% | 3,363 | 9,597 | 17 Feb 2026 | Direct | ||
| Igor Samartsev | IPGP | Employee Stock Option (right to buy) | Options Exercise | -100% | -3,363 | 0 | 17 Feb 2026 | Direct | ||
| Eugene A. Scherbakov | IPGP | Common Stock | Tax liability | -8.56% | -5,727 | 61,195 | 13 Feb 2026 | Direct | ||
| Eugene A. Scherbakov | IPGP | Common Stock | Options Exercise | 12.8% | 7,592 | 66,922 | 13 Feb 2026 | Direct | ||
| Eugene A. Scherbakov | IPGP | Employee Stock Option (right to buy) | Options Exercise | -100% | -7,592 | 0 | 13 Feb 2026 | Direct | ||
| Angelo P. Lopresti | IPGP | Common Stock | Tax liability | -6.26% | -4,022 | 60,224 | 12 Feb 2026 | Direct | ||
| Angelo P. Lopresti | IPGP | Common Stock | Options Exercise | 10% | 5,861 | 64,246 | 12 Feb 2026 | Direct | ||
| Angelo P. Lopresti | IPGP | Employee Stock Option (right to buy) | Options Exercise | -100% | -5,861 | 0 | 12 Feb 2026 | Direct | ||
| Eric Meurice | IPGP | Common Stock | Sale | -3.18% | $71,250 | $95.00 | -750 | 22,803 | 02 Feb 2026 | Direct |
| Eric Meurice | IPGP | Common Stock | Options Exercise | 3.29% | 750 | 23,553 | 02 Feb 2026 | Direct | ||
| Eric Meurice | IPGP | Director Stock Option (right to buy) | Options Exercise | -100% | -750 | 0 | 02 Feb 2026 | Direct | ||
| Angelo P. Lopresti | IPGP | Common Stock | Sale | -2.5% | $127,500 | $85.00 | -1,500 | 58,385 | 21 Jan 2026 | Direct |
| Eugene A. Scherbakov | IPGP | Common Stock | Sale | -4.35% | $218,586 | $80.96 | -2,700 | 59,330 | 21 Jan 2026 | Direct |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.2% | $1,090,848 | $81.52 | -13,381 | 6,593,169 | 21 Jan 2026 | Direct |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.33% | $1,727,251 | $79.90 | -21,619 | 6,606,550 | 20 Jan 2026 | Direct |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.44% | $2,329,616 | $79.87 | -29,167 | 6,628,169 | 16 Jan 2026 | Direct |
| Valentin Gapontsev Trust I | IPGP | Common Stock | Sale | -0.12% | $636,987 | $80.10 | -7,952 | 6,793,099 | 15 Jan 2026 | Direct |
| Valentin Gapontsev Trust I | IPGP | Common Stock | Sale | -0.26% | $1,359,574 | $77.57 | -17,526 | 6,801,051 | 14 Jan 2026 | Direct |
| Valentin Gapontsev Trust I | IPGP | Common Stock | Sale | -0.34% | $1,772,769 | $76.98 | -23,029 | 6,818,577 | 13 Jan 2026 | Direct |
| Valentin Gapontsev Trust I | IPGP | Common Stock | Sale | -0.26% | $1,372,011 | $76.25 | -17,993 | 6,841,606 | 12 Jan 2026 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.