Quick Takeaways
- IPGP - IPG PHOTONICS CORP has 24 insiders with reported activity on this page.
- Net insider value flow over the last year: -$73,133,704.
- 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
What Changed
- Buy value: ; sell value: $73,133,704.
- Net share flow: -832,660.
Why This Matters
- 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.
Source 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: -$73,133,704.
Buys
$0
Shares: 0
Insiders: 0
Sells
$73,133,704
Shares: 832,660
Insiders: 9
Net
-$73,133,704
Shares: -832,660
Insiders: -9
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 133,867 | $0 | $17,658,094 | -$17,658,094 |
| 3-6 | 0 | 407,413 | $0 | $31,396,845 | -$31,396,845 |
| 6-9 | 0 | 277,020 | $0 | $23,104,952 | -$23,104,952 |
| 9-12 | 0 | 14,360 | $0 | $973,813 | -$973,813 |
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 | $143,652,069 | Mixed | 09 Mar 2026 | ||
| Natalia Pavlova | Chief Technology Officer, Director | $16,736,233 | Mixed | 25 May 2021 | ||
| 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 | -$2,012,886 | -23% | 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 | $2,166,285 | -$274,926 | -11% | Filing P/S | 02 Feb 2026 |
| Thomas J. Seifert | Director | $987,191 | Mixed | 24 May 2022 | ||
| Thomas J. Burgomaster | Chief Accounting Officer | $985,423 | Mixed | 01 Mar 2025 | ||
| Greg Dougherty | Director | $921,130 | Mixed | 20 May 2025 | ||
| John R. Peeler | Director | $911,975 | Mixed | 20 May 2025 | ||
| Jeanmarie F. Desmond | Director | $742,577 | -$103,686 | -12% | Filing P/S | 08 Aug 2025 |
| Tang Agnes | Director | $669,216 | -$144,363 | -18% | Filing P/S | 25 Nov 2025 |
| Paulus Bucher | SVP, Global Operations | $623,043 | Mixed | 18 Feb 2026 | ||
| Gregory R. Beecher | Director | $566,653 | Mixed | 20 May 2025 | ||
| Mary E. Buttarazzi | VP, Corp Controller and CAO | $551,928 | -$58,110 | -9.5% | Filing P/S | 17 Mar 2026 |
| Kennedy Kolleen T. | Director | $525,921 | Mixed | 20 May 2025 | ||
| 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 by the holder's primary source 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 | |
| First Eagle Investment Management, LLC |
13F
|
Company |
11%
|
4,487,103
|
$321,276,557 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
6.6%
|
2,802,047
|
$200,626,565 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
5.8%
|
2,457,691
|
$175,970,675 | — | 31 Dec 2025 | |
| Igor Samartsev |
3/4/5
|
SVP, Chief Scientist |
2.2%
|
956,087
|
$143,652,069 | — | 09 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
4.3%
|
1,815,042
|
$129,960,439 | — | 31 Dec 2025 | |
| LAZARD ASSET MANAGEMENT LLC |
13F
|
Company |
4.1%
|
1,769,283
|
$126,680,663 | — | 31 Dec 2025 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
4%
|
1,724,502
|
$123,474,343 | — | 31 Dec 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
3.2%
|
1,363,627
|
$97,635,693 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
1.9%
|
805,435
|
$57,669,146 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.7%
|
745,246
|
$53,359,701 | — | 31 Dec 2025 | |
| Neuberger Berman Group LLC |
13F
|
Company |
1.7%
|
709,783
|
$50,854,912 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.6%
|
698,405
|
$50,005,798 | — | 31 Dec 2025 | |
| M&G Plc |
13F
|
Company |
1.5%
|
620,845
|
$44,700,840 | — | 31 Dec 2025 | |
| DISCIPLINED GROWTH INVESTORS INC /MN |
13F
|
Company |
1.3%
|
566,734
|
$40,578,154 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.1%
|
485,155
|
$34,744,407 | — | 31 Dec 2025 | |
| SEGALL BRYANT & HAMILL, LLC |
13F
|
Company |
0.99%
|
422,536
|
$30,253,578 | — | 31 Dec 2025 | |
| BAILLIE GIFFORD & CO |
13F
|
Company |
0.9%
|
383,984
|
$27,493,255 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.79%
|
337,846
|
$24,189,774 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.68%
|
288,507
|
$20,657,101 | — | 31 Dec 2025 | |
| EXCHANGE TRADED CONCEPTS, LLC |
13F
|
Company |
0.61%
|
258,305
|
$18,494,638 | — | 31 Dec 2025 | |
| Allianz Asset Management GmbH |
13F
|
Company |
0.6%
|
254,566
|
$18,226,926 | — | 31 Dec 2025 | |
| AMERICAN CAPITAL MANAGEMENT INC |
13F
|
Company |
0.55%
|
235,554
|
$16,865,666 | — | 31 Dec 2025 | |
| Natalia Pavlova |
3/4/5
|
Chief Technology Officer, Director |
—
class O/S missing
|
151,665
|
$16,736,233 | — | 25 May 2021 | |
| PACIFIC HEIGHTS ASSET MANAGEMENT LLC |
13F
|
Company |
0.53%
|
225,000
|
$16,110,000 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.51%
|
218,929
|
$15,675,316 | — | 31 Dec 2025 | |
| Retirement Systems of Alabama |
13F
|
Company |
0.5%
|
213,798
|
$15,307,937 | — | 31 Dec 2025 | |
| EMERALD ADVISERS, LLC |
13F
|
Company |
0.48%
|
204,050
|
$14,609,980 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.47%
|
199,766
|
$14,303,248 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.46%
|
194,884
|
$13,953,695 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
0.41%
|
176,632
|
$12,646,851 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.4%
|
171,188
|
$12,257,061 | — | 31 Dec 2025 | |
| ROYCE & ASSOCIATES LP |
13F
|
Company |
0.4%
|
170,180
|
$12,184,888 | — | 31 Dec 2025 | |
| 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 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.36%
|
152,210
|
$10,898,222 | — | 31 Dec 2025 | |
| BRANDES INVESTMENT PARTNERS, LP |
13F
|
Company |
0.35%
|
151,148
|
$10,822,197 | — | 31 Dec 2025 | |
| S Squared Technology, LLC |
13F
|
Company |
0.34%
|
143,916
|
$10,304,386 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.32%
|
138,341
|
$9,905,215 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.3%
|
128,927
|
$9,231,170 | — | 31 Dec 2025 | |
| SYSTEMATIC FINANCIAL MANAGEMENT LP |
13F
|
Company |
0.3%
|
126,157
|
$9,032,963 | — | 31 Dec 2025 | |
| EMERALD MUTUAL FUND ADVISERS TRUST |
13F
|
Company |
0.29%
|
122,225
|
$8,751,310 | — | 31 Dec 2025 | |
| Angelo P. Lopresti |
3/4/5
|
SVP, Secretary & Gen Counsel, 10%+ Owner |
0.14%
|
60,841
|
$8,004,850 | -$825,315 | 01 Mar 2026 | |
| Quantinno Capital Management LP |
13F
|
Company |
0.26%
|
110,269
|
$7,895,260 | — | 31 Dec 2025 | |
| LHM, INC. |
13F
|
Company |
0.25%
|
108,085
|
$7,738,886 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
0.23%
|
98,599
|
$7,059,688 | — | 31 Dec 2025 | |
| SCHAPER BENZ & WISE INVESTMENT COUNSEL INC/WI |
13F
|
Company |
0.23%
|
96,604
|
$6,916,846 | — | 31 Dec 2025 | |
| FULLER & THALER ASSET MANAGEMENT, INC. |
13F
|
Company |
0.22%
|
94,670
|
$6,778,361 | — | 31 Dec 2025 | |
| Eugene A. Scherbakov |
3/4/5
|
Director, 10%+ Owner |
0.12%
|
51,258
|
$6,744,015 | -$2,012,886 | 01 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.19% | $955,846 | $74.76 | -12,785 | 6,657,336 | 24 Dec 2025 | Direct |
| Eugene A. Scherbakov | IPGP | Common Stock | Sale | -4.17% | $200,986 | $74.44 | -2,700 | 62,030 | 23 Dec 2025 | Direct |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.42% | $2,122,581 | $74.62 | -28,445 | 6,670,121 | 23 Dec 2025 | Direct |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.34% | $1,730,163 | $75.43 | -22,937 | 6,698,566 | 22 Dec 2025 | Direct |
| Valentin Gapontsev Trust I | IPGP | Common Stock | Sale | -0.39% | $2,089,452 | $77.06 | -27,116 | 6,859,599 | 16 Dec 2025 | Direct |
| Valentin Gapontsev Trust I | IPGP | Common Stock | Sale | -0.57% | $3,057,380 | $77.63 | -39,384 | 6,886,715 | 15 Dec 2025 | Direct |
| Angelo P. Lopresti | IPGP | Common Stock | Sale | -2.44% | $127,605 | $85.07 | -1,500 | 59,885 | 09 Dec 2025 | Direct |
| Tang Agnes | IPGP | Common Stock | Sale | -17.8% | $144,363 | $76.75 | -1,881 | 8,663 | 25 Nov 2025 | Direct |
| Eugene A. Scherbakov | IPGP | Common Stock | Sale | -4% | $205,294 | $76.03 | -2,700 | 64,730 | 24 Nov 2025 | Direct |
| Ip Fibre Devices Ltd | IPGP | Common Stock | Sale | -0.52% | $2,672,575 | $76.36 | -35,000 | 6,721,503 | 24 Nov 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.