IPGP IPG Photonics Corporation

NASDAQ
$74.90

IPG Photonics Corporation (IPGP) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with IPGP's own trailing one-year pace, with 93% of sale value under a prearranged plan.
Cluster activity 1 buyer in the last 30 days 1 buyer in the last 90 days 5 sellers in the last 90 days
Insiders buying
1
2 transactions
Insiders selling
10
165 transactions
Purchases
$199.4K
2,710 shares
Sales
$93.8M
1,040,572 shares
Net activity
-$93.6M
purchases less sales

How much of that selling was preplanned? 93% planned / 7% discretionary

10b5-1 plan sales $86.9M 156 transactions · 960,229 shares
Discretionary sales $6.9M 9 transactions · 80,343 shares

Largest single sale: $3.1M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: August 26, 2026 , by PEELER JOHN R .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Valentin Gapontsev Trust I 2 fills 10% Owner Sell 10b5-1 9,306 $75.95 $706.8K 6,647,601 −0.1% of holding
Valentin Gapontsev Trust I 10% Owner Sell 10b5-1 18,091 $75.14 $1.4M 6,652,192 −0.3% of holding
PEELER JOHN R 2 fills Director Buy 2,710 $73.58 $199.4K 20,886
IP FIBRE DEVICES LTD 4 fills 10% Owner Sell 10b5-1 18,111 $96.12 $1.7M 6,412,188 −0.3% of holding
IP FIBRE DEVICES LTD 10% Owner Sell 10b5-1 12,202 $95.18 $1.2M 6,424,100 −0.2% of holding
IP FIBRE DEVICES LTD 4 fills 10% Owner Sell 10b5-1 27,000 $85.81 $2.3M 6,437,308 −0.4% of holding
SCHERBAKOV EUGENE A 4 fills Director Sell 10b5-1 1,524 $86.61 $132.0K 48,951 −3% of holding
Valentin Gapontsev Trust I 4 fills 10% Owner Sell 10b5-1 56,316 $102.31 $5.8M 6,725,599 −0.8% of holding
IP FIBRE DEVICES LTD 7 fills 10% Owner Sell 10b5-1 65,700 $103.64 $6.8M 6,527,161 −1% of holding
SCHERBAKOV EUGENE A 5 fills Director Sell 10b5-1 1,524 $101.55 $154.8K 50,285 −2.9% of holding
Lopresti Angelo P SVP, Secretary & Gen Counsel Sell 10b5-1 1,000 $110.33 $110.3K 59,841 −1.6% of holding
Agnes Tang 3 fills Director Sell 10b5-1 1,511 $117.85 $178.1K 10,324 −12.8% of holding
Mammen Timothy PV 2 fills SVP, Chief Financial Officer Sell 9,975 $119.81 $1.2M 79,150 −11.2% of holding
Desmond Jeanmarie F. Director Sell 1,690 $105.58 $178.4K 10,486 −13.9% of holding
Buttarazzi Mary E. VP, Corp Controller and CAO Sell 500 $116.22 $58.1K 4,749 −9.5% of holding
SCHERBAKOV EUGENE A 4 fills Director Sell 10b5-1 2,700 $137.83 $372.1K 60,995 −4.2% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 1,620 $136.89 $221.8K 6,530,522 −0% of holding
IP FIBRE DEVICES LTD 5 fills 10% Owner Sell 10b5-1 33,380 $133.52 $4.5M 6,559,761 −0.5% of holding
IP FIBRE DEVICES LTD 5 fills 10% Owner Sell 10b5-1 29,167 $131.94 $3.8M 6,592,669 −0.4% of holding
Valentin Gapontsev Trust I 21 fills 10% Owner Sell 10b5-1 66,500 $130.84 $8.7M 6,786,509 −1% of holding
Meurice Eric Director Sell 10b5-1 750 $95.00 $71.3K 22,803 −3.2% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 13,381 $81.52 $1.1M 6,605,244 −0.2% of holding
SCHERBAKOV EUGENE A 3 fills Director Sell 10b5-1 2,700 $80.96 $218.6K 61,937 −4.2% of holding
Lopresti Angelo P SVP, Secretary & Gen Counsel Sell 10b5-1 1,500 $85.00 $127.5K 58,385 −2.5% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 21,619 $79.90 $1.7M 6,620,510 −0.3% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 29,167 $79.87 $2.3M 6,642,825 −0.4% of holding
Valentin Gapontsev Trust I 2 fills 10% Owner Sell 10b5-1 7,952 $80.10 $637.0K 6,800,480 −0.1% of holding
Valentin Gapontsev Trust I 3 fills 10% Owner Sell 10b5-1 17,526 $77.57 $1.4M 6,814,910 −0.3% of holding
Valentin Gapontsev Trust I 2 fills 10% Owner Sell 10b5-1 23,029 $76.98 $1.8M 6,824,854 −0.3% of holding
Valentin Gapontsev Trust I 2 fills 10% Owner Sell 10b5-1 17,993 $76.25 $1.4M 6,843,534 −0.3% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 12,785 $74.76 $955.8K 6,659,561 −0.2% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 28,445 $74.62 $2.1M 6,670,161 −0.4% of holding
SCHERBAKOV EUGENE A 2 fills Director Sell 10b5-1 2,700 $74.44 $201.0K 62,075 −4.2% of holding
IP FIBRE DEVICES LTD 3 fills 10% Owner Sell 10b5-1 22,937 $75.43 $1.7M 6,705,443 −0.3% of holding
Valentin Gapontsev Trust I 3 fills 10% Owner Sell 10b5-1 27,116 $77.06 $2.1M 6,873,171 −0.4% of holding
Valentin Gapontsev Trust I 10% Owner Sell 10b5-1 39,384 $77.63 $3.1M 6,886,715 −0.6% of holding
Lopresti Angelo P SVP, Secretary & Gen Counsel Sell 10b5-1 1,500 $85.07 $127.6K 59,885 −2.4% of holding
Agnes Tang 2 fills Director Sell 10b5-1 1,881 $76.75 $144.4K 8,763 −17.7% of holding
IP FIBRE DEVICES LTD 3 fills 10% Owner Sell 10b5-1 35,000 $76.36 $2.7M 6,751,861 −0.5% of holding
SCHERBAKOV EUGENE A 2 fills Director Sell 10b5-1 2,700 $76.03 $205.3K 66,675 −3.9% of holding
IP FIBRE DEVICES LTD 3 fills 10% Owner Sell 10b5-1 29,167 $74.26 $2.2M 6,777,811 −0.4% of holding
Valentin Gapontsev Trust I 2 fills 10% Owner Sell 10b5-1 47,901 $76.13 $3.6M 6,946,874 −0.7% of holding
Ness Trevor SVP, Chief Revenue Officer Sell 10b5-1 1,681 $75.58 $127.0K 37,206 −4.3% of holding
Valentin Gapontsev Trust I 3 fills 10% Owner Sell 10b5-1 18,599 $77.67 $1.4M 6,982,667 −0.3% of holding
Meurice Eric Director Sell 10b5-1 750 $92.00 $69.0K 22,803 −3.2% of holding
Lopresti Angelo P SVP, Secretary & Gen Counsel Sell 10b5-1 1,500 $87.13 $130.7K 61,385 −2.4% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 23,966 $87.92 $2.1M 6,798,210 −0.4% of holding
SCHERBAKOV EUGENE A 2 fills Director Sell 10b5-1 2,700 $87.64 $236.6K 67,789 −3.8% of holding
IP FIBRE DEVICES LTD 3 fills 10% Owner Sell 10b5-1 23,642 $87.70 $2.1M 6,826,735 −0.3% of holding
Ness Trevor 3 fills SVP, Sales & Strategic Bus Dev Sell 10b5-1 1,678 $87.00 $146.0K 40,215 −4% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 16,559 $84.68 $1.4M 6,834,153 −0.2% of holding
Valentin Gapontsev Trust I 3 fills 10% Owner Sell 10b5-1 17,707 $85.09 $1.5M 7,004,991 −0.3% of holding
Valentin Gapontsev Trust I 4 fills 10% Owner Sell 10b5-1 16,529 $82.97 $1.4M 7,025,174 −0.2% of holding
Valentin Gapontsev Trust I 3 fills 10% Owner Sell 10b5-1 32,264 $83.19 $2.7M 7,057,432 −0.5% of holding
Meurice Eric 2 fills Director Sell 10b5-1 1,502 $89.66 $134.7K 23,631 −6% of holding
Lopresti Angelo P SVP, Secretary & Gen Counsel Sell 10b5-1 1,500 $85.17 $127.8K 62,885 −2.3% of holding
SCHERBAKOV EUGENE A 2 fills Director Sell 10b5-1 2,700 $81.81 $220.9K 71,275 −3.6% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 35,000 $82.10 $2.9M 6,876,307 −0.5% of holding
IP FIBRE DEVICES LTD 2 fills 10% Owner Sell 10b5-1 29,167 $81.49 $2.4M 6,905,018 −0.4% of holding
Ness Trevor 2 fills SVP, Sales & Strategic Bus Dev Sell 1,678 $82.64 $138.7K 40,665 −4% of holding
Valentin Gapontsev Trust I 10% Owner Sell 14,180 $80.67 $1.1M 7,059,099 −0.2% of holding
Valentin Gapontsev Trust I 2 fills 10% Owner Sell 52,320 $80.71 $4.2M 7,087,705 −0.7% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.