undamentalytics Newsletter

IPG Photonics Corp insider trading

Every open-market purchase and sale by IPG Photonics Corp's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
IPG Photonics Corp insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following IPG Photonics Corp’s insiders pay?

From March 2, 2010 to August 27, 2026, 22 insiders reported 3 open-market purchases and 109 sales not made under a pre-set plan in IPG Photonics Corp. Twelve months after each purchase was reported, the shares were +48.0% against the S&P 500 on average (median +48.0%), over 2 purchases with a full year of prices; 100% beat the index. After sales, the shares moved +10.1% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on August 5, 2016 into $30,612 by November 2, 2026, +11.6% a year. It held shares 21% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $16,527 (+5.0% a year), and held throughout $40,805 (+14.8%).

$0$20.0k$40.0k 201620182020202220242026 $40.8k$30.6k$16.5k
Copying IPG Photonics Corp's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by IPG Photonics Corp's insiders from August 5, 2016, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 21% of the time.
IPG Photonics Corp: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Blair Robert A Director 0 — — 17 +34.9% (17) May 13, 2015
Hurley William S Director 0 — — 10 −5.8% (10) May 15, 2018
Lopresti Angelo P SVP, Secretary & Gen Counsel 0 — — 9 +14.7% (9) June 9, 2025
Gapontsev Valentin P CEO & Chairman of the Board 0 — — 8 −4.3% (8) November 19, 2020
Mammen Timothy Pv SVP, Chief Financial Officer 1 +22.2% (1) 100% 7 −19.3% (6) May 26, 2026
Buabbud George H Vice President 0 — — 7 +1.8% (7) March 15, 2012
Valentin Gapontsev Trust I Managing Director of IPG Laser 0 — — 7 −8.8% (7) March 7, 2025
Samartsev Igor Chief Technology Officer 0 — — 6 +33.2% (6) November 21, 2017
Burgomaster Thomas J Chief Accounting Officer 0 — — 5 −28.4% (5) March 3, 2023
Ovtchinnikov Alexander SVP, Components 0 — — 5 +2.6% (5) December 16, 2020
Peeler John R Director 1 — — 4 −34.3% (4) August 27, 2026
Shiner William H VP, Industrial Products 0 — — 5 +96.1% (5) December 20, 2011
Desmond Jeanmarie F. Director 0 — — 4 −31.4% (3) May 15, 2026
Krupke William F Director 0 — — 3 +52.7% (3) February 20, 2014
Scherbakov Eugene A SVP, MD IPG Laser GmbH 0 — — 3 +51.0% (3) May 21, 2025
Stukalin Felix I SVP, North America Operations 0 — — 3 −8.8% (3) March 10, 2021
Lego Catherine P Director 1 +73.9% (1) 100% 1 −52.1% (1) November 9, 2020
Buttarazzi Mary E. VP, Corp Controller and CAO 0 — — 1 — March 17, 2026
Child Michael C Director 0 — — 1 +22.9% (1) December 9, 2010
Ip Fibre Devices Ltd 10% owner 0 — — 1 −57.1% (1) March 10, 2021
Ness Trevor SVP, Worldwide Sales & Mrkting 0 — — 1 −7.8% (1) February 26, 2015
Seifert Thomas J Director 0 — — 1 +97.1% (1) December 15, 2016

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded IPG Photonics Corp

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of IPG Photonics Corp in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 9 selling crowds, +12.2%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
May 29, 20263 selling−35.1%not yetnot yet
March 31, 20213 selling−8.4%−34.9%−63.5%
November 30, 20206 selling−2.5%−16.9%−48.3%
May 29, 20204 selling−15.0%+10.0%−5.6%
May 31, 20183 selling−37.1%−42.7%−50.8%
August 31, 20174 selling+22.6%+23.1%−19.7%
December 30, 20163 selling+15.3%+37.6%+102.7%
February 27, 20154 selling−1.8%−6.0%−7.8%
December 30, 20114 selling+45.2%+17.7%+81.2%
September 30, 20105 selling+19.1%+121.6%+89.3%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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