Nasdaq · CIK 0001111928
IPGP IPG PHOTONICS CORP
Insider trading from SEC Form 4. Last filing 7 d ago. Close $78.27 on Oct 9, 2026, +11% from the 52-week low and -49% from the high.
In brief
IPG PHOTONICS CORP (IPGP) has 116 SEC Form 4 filings on file from 15 insiders, the latest filed on Oct 6, 2026. In the last 90 days insiders made 1 open-market buy worth $199k and 7 open-market sells worth $15M, net -$15M.
58 open-market trades have been scored at IPGP. The newest: Ip Fibre Devices Ltd (10% owner) sold $1.3M of stock on Oct 2, 2026, filed Oct 6, 2026, scored 25 (weak), under a 10b5-1 plan. The largest of the 50 shown: Valentin Gapontsev Trust I (10% owner) sold $8.7M on Feb 17, 2026, scored 32 (weak), under a 10b5-1 plan. 2 insiders sold within 14 days of each other around Oct 2, 2026.
25 Form 144 notices of planned sales are on file, the latest filed Oct 2, 2026.
Last 90 days
Net insider value
-$15M
more sold than bought
Buys
1
$199k by 1 insider
Sells
7
$15M by 3 insiders
Insiders on file
15
with a Form 4 at this company
Price and insider trades, last year
IPGPOct 9, 2026 · close 78.27
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at IPG PHOTONICS CORP, scored: the newest 50 of 58.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 25Weak | Ip Fibre Devices Ltd owner sell | $1.3M 15,361 shares | -0% | +19% from low-45% from high | |
| 16Weak | Eugene A Scherbakov director, owner sell | $260k 3,048 shares | -6% | +19% from low-45% from high | |
| 17Weak | Valentin Gapontsev Trust I owner sell | $2.1M 27,397 shares | -0% | - | |
| 48Moderate | John R Peeler director buy | $199k 2,710 shares | +15% | +5% from low-52% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $2.9M 30,313 shares | -0% | +31% from low-39% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $2.3M 27,000 shares | -0% | +19% from low-45% from high | |
| 21Weak | Eugene A Scherbakov director, owner sell | $132k 1,524 shares | -3% | +19% from low-45% from high | |
| 32Weak | Valentin Gapontsev Trust I owner sell | $5.8M 56,316 shares | -1% | +44% from low-33% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $6.8M 65,700 shares | -1% | +62% from low-28% from high | |
| 21Weak | Eugene A Scherbakov director, owner sell | $155k 1,524 shares | -3% | +62% from low-28% from high | |
| 20Weak | Angelo P Lopresti SVP, Secretary & Gen Counsel sell | $110k 1,000 shares | -2% | +62% from low-28% from high | |
| 27Weak | Tang Agnes director sell | $178k 1,511 shares | -14% | +75% from low-23% from high | |
| 60Notable | Timothy PV Mammen SVP, Chief Financial Officer sell | $1.2M 9,975 shares | -12% | +84% from low-23% from high | |
| 40Moderate | Jeanmarie F. Desmond director sell | $178k 1,690 shares | -14% | +63% from low-32% from high | |
| 22Weak | Mary E. Buttarazzi VP, Corp Controller and CAO sell | $58k 500 shares | -10% | +132% from low-25% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $8.5M 64,167 shares | -1% | +169% from low-13% from high | |
| 25Weak | Eugene A Scherbakov director, owner sell | $372k 2,700 shares | -4% | +165% from low-14% from high | |
| 32Weak | Valentin Gapontsev Trust I owner sell | $8.7M 66,500 shares | -1% | +171% from low-12% from high | |
| 3Weak | Eric Meurice director sell | $71k 750 shares | -3% | +90% from low0% from high | |
| 21Weak | Angelo P Lopresti SVP, Secretary & Gen Counsel sell | $128k 1,500 shares | -3% | +72% from low-5% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $5.1M 64,167 shares | -1% | +65% from low-9% from high | |
| 22Weak | Eugene A Scherbakov director, owner sell | $219k 2,700 shares | -4% | +72% from low-5% from high | |
| 27Weak | Valentin Gapontsev Trust I owner sell | $637k 7,952 shares | -0% | +61% from low-11% from high | |
| 32Weak | Valentin Gapontsev Trust I owner sell | $4.5M 58,548 shares | -1% | +53% from low-15% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $4.8M 64,167 shares | -1% | +51% from low-16% from high | |
| 22Weak | Eugene A Scherbakov director, owner sell | $201k 2,700 shares | -4% | +50% from low-17% from high | |
| 32Weak | Valentin Gapontsev Trust I owner sell | $5.1M 66,500 shares | -1% | +57% from low-13% from high | |
| 21Weak | Angelo P Lopresti SVP, Secretary & Gen Counsel sell | $128k 1,500 shares | -2% | +70% from low-6% from high | |
| 26Weak | Tang Agnes director sell | $144k 1,881 shares | -18% | +56% from low-14% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $4.8M 64,167 shares | -1% | +51% from low-16% from high | |
| 22Weak | Eugene A Scherbakov director, owner sell | $205k 2,700 shares | -4% | +54% from low-15% from high | |
| 32Weak | Valentin Gapontsev Trust I owner sell | $5.1M 66,500 shares | -1% | +54% from low-15% from high | |
| 21Weak | Trevor Ness SVP, Chief Revenue Officer sell | $127k 1,681 shares | -4% | +53% from low-16% from high | |
| 3Weak | Eric Meurice director sell | $69k 750 shares | -3% | +81% from low0% from high | |
| 21Weak | Angelo P Lopresti SVP, Secretary & Gen Counsel sell | $131k 1,500 shares | -2% | +75% from low-1% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $5.6M 64,167 shares | -1% | +71% from low-4% from high | |
| 21Weak | Trevor Ness SVP, Sales & Strategic Bus Dev sell | $146k 1,678 shares | -4% | +76% from low-1% from high | |
| 23Weak | Eugene A Scherbakov director, owner sell | $237k 2,700 shares | -4% | +77% from low-0% from high | |
| 32Weak | Valentin Gapontsev Trust I owner sell | $5.6M 66,500 shares | -1% | +68% from low-6% from high | |
| 6Weak | Eric Meurice director sell | $135k 1,502 shares | -6% | +71% from low-3% from high | |
| 21Weak | Angelo P Lopresti SVP, Secretary & Gen Counsel sell | $128k 1,500 shares | -2% | +78% from low0% from high | |
| 22Weak | Eugene A Scherbakov director, owner sell | $221k 2,700 shares | -4% | +65% from low-5% from high | |
| 32Weak | Ip Fibre Devices Ltd owner sell | $5.3M 64,167 shares | -1% | +64% from low-5% from high | |
| 21Weak | Trevor Ness SVP, Sales & Strategic Bus Dev sell | $139k 1,678 shares | -4% | +66% from low-4% from high | |
| 32Weak | Valentin Gapontsev Trust I owner sell | $5.4M 66,500 shares | -1% | +62% from low-6% from high | |
| 6Weak | Trevor Ness SVP, Sales & Strategic Bus Dev sell | $139k 1,678 shares | -4% | +68% from low-2% from high | |
| 30Weak | Jeanmarie F. Desmond director sell | $104k 1,360 shares | -12% | +51% from low-12% from high | |
| 29Weak | Angelo P Lopresti SVP, Secretary & Gen Counsel sell | $312k 4,500 shares | -7% | +39% from low-20% from high | |
| 39Weak | Eugene A Scherbakov director, owner sell | $558k 8,500 shares | -10% | +32% from low-24% from high | |
| 37Weak | Valentin Gapontsev Trust I owner sell | $4.7M 75,000 shares | -1% | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Oct 2, 2026 | IP FIBRE DEVICES LTD 10% Stockholder | 135,000 0.32% of outstanding | $12M | Oct 2, 2026 | $5.2M |
| Oct 2, 2026 | SCHERBAKOV EUGENE A 10% Stockholder | 7,620 0.02% of outstanding | $650k | Oct 2, 2026 | $132k |
| Sep 22, 2026 | Valentin Gapontsev Trust II Officer | 11,688 0.03% of outstanding | $909k | Sep 22, 2026 | $654k |
| Jun 29, 2026 | IP FIBRE DEVICES LTD 10% Stockholder | 197,100 0.46% of outstanding | $20M | Jun 29, 2026 | none |
| Jun 29, 2026 | SCHERBAKOV EUGENE A Director | 4,572 0.01% of outstanding | $464k | Jun 29, 2026 | none |
| Jun 29, 2026 | Lopresti Angelo P Officer | 3,000 0.01% of outstanding | $331k | Jun 29, 2026 | none |
| Jun 22, 2026 | Agnes Tang Director | 1,511 0.00% of outstanding | $178k | Jun 22, 2026 | none |
| Jun 22, 2026 | Valentin Gapontsev Trust II Officer | 12,876 0.03% of outstanding | $1.5M | Jun 22, 2026 | none |
| May 22, 2026 | Mammen Timothy PV Officer | 9,975 0.02% of outstanding | $1.2M | May 22, 2026 | none |
| May 14, 2026 | Desmond Jeanmarie F. Director | 1,690 0.00% of outstanding | $178k | May 14, 2026 | none |
| Mar 17, 2026 | Buttarazzi Mary E. Officer | 500 0.00% of outstanding | $58k | Mar 17, 2026 | none |
| Feb 2, 2026 | Meurice Eric Director | 750 0.00% of outstanding | $71k | Feb 2, 2026 | none |
| Jan 21, 2026 | Lopresti Angelo P Officer | 1,500 0.00% of outstanding | $128k | Jan 21, 2026 | $258k |
| Dec 23, 2025 | SCHERBAKOV EUGENE A Officer | 8,100 0.02% of outstanding | $603k | Dec 23, 2025 | $663k |
| Dec 22, 2025 | IP FIBRE DEVICES LTD 10% Stockholder | 192,501 0.46% of outstanding | $15M | Dec 22, 2025 | $13M |
| Dec 19, 2025 | Valentin Gapontsev Trust II Officer | 27,945 0.07% of outstanding | $2.1M | Dec 19, 2025 | $1.5M |
| Nov 25, 2025 | Agnes Tang Director | 1,881 0.00% of outstanding | $144k | Nov 25, 2025 | none |
| Oct 7, 2025 | Meurice Eric Director | 3,002 0.01% of outstanding | $269k | Oct 7, 2025 | none |
| Oct 6, 2025 | Lopresti Angelo P Officer | 6,000 0.01% of outstanding | $511k | Oct 6, 2025 | none |
| Sep 23, 2025 | SCHERBAKOV EUGENE A Officer | 8,100 0.02% of outstanding | $663k | Sep 23, 2025 | none |
| Sep 19, 2025 | IP FIBRE DEVICES LTD 10% Stockholder | 192,501 0.46% of outstanding | $13M | Sep 19, 2025 | none |
| Sep 18, 2025 | Valentin Gapontsev Trust II Officer | 27,945 0.07% of outstanding | $2.3M | Sep 18, 2025 | none |
| Aug 27, 2025 | Ness Trevor Officer | 6,715 0.02% of outstanding | $557k | Aug 27, 2025 | none |
| Aug 8, 2025 | Desmond Jeanmarie F. Director | 1,360 0.00% of outstanding | $104k | Aug 8, 2025 | none |
| Jun 6, 2025 | Lopresti Angelo P Director | 4,500 0.01% of outstanding | $312k | Jun 6, 2025 | none |
Transactions
The newest 50 of 261 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -3,048 | $85.30 | $260k | 45,162 | 7 d ago |
| Oct 2, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -9,876 | $85.39 | $843k | 6,396,113 | 7 d ago |
| Oct 2, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -5,485 | $86.09 | $472k | 6,390,628 | 7 d ago |
| Sep 1, 2026 | Valentin Gapontsev Trust I owner | SOpen-market sale Common Stock10b5-1 | -18,091 | $75.14 | $1.4M | 6,652,192 | 40 d ago |
| Sep 2, 2026 | Valentin Gapontsev Trust I owner | SOpen-market sale Common Stock10b5-1 | -4,591 | $75.65 | $347k | 6,647,601 | 40 d ago |
| Sep 2, 2026 | Valentin Gapontsev Trust I owner | SOpen-market sale Common Stock10b5-1 | -4,715 | $76.25 | $360k | 6,642,886 | 40 d ago |
| Aug 26, 2026 | John R Peeler director | POpen-market purchase Common Stock | +1,552 | $72.84 | $113k | 19,728 | Aug 27, 2026 |
| Aug 26, 2026 | John R Peeler director | POpen-market purchase Common Stock | +1,158 | $74.57 | $86k | 20,886 | Aug 27, 2026 |
| Aug 8, 2026 | Paulus Bucher SVP, Global Operations | FTax withholding Common Stock | -663 | $90.23 | $60k | 6,053 | Aug 10, 2026 |
| Aug 4, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -12,202 | $95.18 | $1.2M | 6,424,100 | Aug 6, 2026 |
| Aug 5, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -11,912 | $95.31 | $1.1M | 6,412,188 | Aug 6, 2026 |
| Aug 5, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -1,325 | $96.76 | $128k | 6,410,863 | Aug 6, 2026 |
| Aug 5, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -4,324 | $97.81 | $423k | 6,406,539 | Aug 6, 2026 |
| Aug 5, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -550 | $98.71 | $54k | 6,405,989 | Aug 6, 2026 |
| Jul 31, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -783 | $85.72 | $67k | 48,951 | Aug 4, 2026 |
| Jul 31, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -25,994 | $85.76 | $2.2M | 6,437,308 | Aug 4, 2026 |
| Jul 31, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -506 | $86.14 | $44k | 6,436,802 | Aug 4, 2026 |
| Jul 31, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -200 | $86.34 | $17k | 48,751 | Aug 4, 2026 |
| Jul 31, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -200 | $87.45 | $17k | 6,436,602 | Aug 4, 2026 |
| Jul 31, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -300 | $87.45 | $26k | 48,451 | Aug 4, 2026 |
| Jul 31, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -300 | $88.59 | $27k | 6,436,302 | Aug 4, 2026 |
| Jul 31, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -241 | $88.68 | $21k | 48,210 | Aug 4, 2026 |
| Jul 21, 2026 | Valentin Gapontsev Trust I owner | SOpen-market sale Common Stock10b5-1 | -1,000 | $100.08 | $100k | 6,725,599 | Jul 22, 2026 |
| Jul 21, 2026 | Valentin Gapontsev Trust I owner | SOpen-market sale Common Stock10b5-1 | -7,100 | $101.20 | $719k | 6,718,499 | Jul 22, 2026 |
| Jul 21, 2026 | Valentin Gapontsev Trust I owner | SOpen-market sale Common Stock10b5-1 | -24,347 | $102.04 | $2.5M | 6,694,152 | Jul 22, 2026 |
| Jul 21, 2026 | Valentin Gapontsev Trust I owner | SOpen-market sale Common Stock10b5-1 | -23,869 | $103.00 | $2.5M | 6,670,283 | Jul 22, 2026 |
| Jun 29, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -973 | $100.43 | $98k | 50,285 | Jul 1, 2026 |
| Jun 29, 2026 | Angelo P Lopresti SVP, Secretary & Gen Counsel | SOpen-market sale Common Stock10b5-1 | -1,000 | $110.33 | $110k | 59,841 | Jul 1, 2026 |
| Jun 29, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -1,841 | $100.19 | $184k | 6,527,161 | Jul 1, 2026 |
| Jun 29, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -250 | $101.24 | $25k | 50,035 | Jul 1, 2026 |
| Jun 29, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -2,405 | $101.21 | $243k | 6,524,756 | Jul 1, 2026 |
| Jun 29, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -100 | $102.92 | $10k | 49,935 | Jul 1, 2026 |
| Jun 29, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -17,735 | $102.09 | $1.8M | 6,507,021 | Jul 1, 2026 |
| Jun 29, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -1 | $104.63 | $105 | 49,934 | Jul 1, 2026 |
| Jun 29, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -13,304 | $103.08 | $1.4M | 6,493,717 | Jul 1, 2026 |
| Jun 29, 2026 | Eugene A Scherbakov director, owner | SOpen-market sale Common Stock10b5-1 | -200 | $106.66 | $21k | 49,734 | Jul 1, 2026 |
| Jun 29, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -16,406 | $104.33 | $1.7M | 6,477,311 | Jul 1, 2026 |
| Jun 29, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -2,684 | $105.37 | $283k | 6,474,627 | Jul 1, 2026 |
| Jun 29, 2026 | Ip Fibre Devices Ltd owner | SOpen-market sale Common Stock10b5-1 | -11,325 | $106.40 | $1.2M | 6,463,302 | Jul 1, 2026 |
| Jun 22, 2026 | Tang Agnes director | SOpen-market sale Common Stock10b5-1 | -775 | $117.32 | $91k | 10,324 | Jun 23, 2026 |
| Jun 22, 2026 | Tang Agnes director | SOpen-market sale Common Stock10b5-1 | -536 | $118.08 | $63k | 9,788 | Jun 23, 2026 |
| Jun 22, 2026 | Tang Agnes director | SOpen-market sale Common Stock10b5-1 | -200 | $119.32 | $24k | 9,588 | Jun 23, 2026 |
| Jun 5, 2026 | Mark Milton Gitin CEO | FTax withholding Common Stock | -4,641 | $107.37 | $498k | 87,232 | Jun 8, 2026 |
| May 22, 2026 | Timothy PV Mammen SVP, Chief Financial Officer | SOpen-market sale Common Stock | -7,263 | $119.60 | $869k | 79,150 | May 26, 2026 |
| May 22, 2026 | Timothy PV Mammen SVP, Chief Financial Officer | SOpen-market sale Common Stock | -2,712 | $120.37 | $326k | 76,438 | May 26, 2026 |
| May 14, 2026 | Jeanmarie F. Desmond director | SOpen-market sale Common Stock | -1,690 | $105.58 | $178k | 10,486 | May 15, 2026 |
| May 12, 2026 | Tang Agnes director | AGrant or award Common Stock | +2,436 | $0.00 | $0 | 11,099 | May 13, 2026 |
| May 12, 2026 | Gregory R Beecher director | AGrant or award Common Stock | +2,436 | $0.00 | $0 | 12,216 | May 13, 2026 |
| May 12, 2026 | Jeanmarie F. Desmond director | AGrant or award Common Stock | +2,436 | $0.00 | $0 | 12,176 | May 13, 2026 |
| May 12, 2026 | Greg Dougherty director | AGrant or award Common Stock | +2,436 | $0.00 | $0 | 18,334 | May 13, 2026 |
50 of 261 rows shown.
Insiders
Everyone who has filed a Form 4 here.
- Tang Agnesdirector
- Gregory R Beecherdirector
- Paulus BucherSVP, Global Operations
- Mary E. ButtarazziVP, Corp Controller and CAO
- Jeanmarie F. Desmonddirector
- Greg Doughertydirector
- Mark Milton GitinCEO
- Ip Fibre Devices Ltdowner
- Angelo P LoprestiSVP, Secretary & Gen Counsel
- Timothy PV MammenSVP, Chief Financial Officer
- Eric Meuricedirector
- Trevor NessSVP, Chief Revenue Officer
- John R Peelerdirector
- Eugene A Scherbakovdirector, owner
- Valentin Gapontsev Trust Iowner
Questions about IPGP
Answered from the filings on this page, as of the latest one.
Are insiders buying IPGP?
As of Oct 6, 2026, SEC Form 4 filings show 1 open-market buy worth $199k by 1 insider and 7 open-market sells worth $15M by 3 insiders at IPG PHOTONICS CORP in the last 90 days, net -$15M. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.
Who was the last insider to trade IPGP on the open market?
Ip Fibre Devices Ltd (10% owner) sold $1.3M of IPGP on Oct 2, 2026 and filed the Form 4 on Oct 6, 2026. InsiderTell scored 25 (weak), under a 10b5-1 plan, with 2 insiders on the same side within 14 days.
How many insiders file Form 4 at IPG PHOTONICS CORP?
15 people have filed a Form 4 at IPG PHOTONICS CORP, among them Tang Agnes (director), Gregory R Beecher (director), Paulus Bucher (SVP, Global Operations). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.