Form4insider filings, from the source

Company · CIK 0001111928 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

IPG PHOTONICS CORP · IPGP

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $199k · 1sales $20.4M · 9net −$20.2M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesSep 2024Jan 2025May 2025Sep 2025Jan 2026May 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 SForm 4 →Sep 3, 4:23 pm EDTValentin Gapontsev Trust I10% Owner27,397$75.42$2,066,1866,642,886−0.41%10b5-1
Aug 26, 2026 PForm 4 →Aug 27, 4:27 pm EDTJohn R PeelerDirector2,710$73.58$199,40020,886+14.9%
Aug 8, 2026 FForm 4 →Aug 10, 4:12 pm EDTPaulus BucherSVP, Global Operations663$90.23$59,8226,053—
Aug 4, 2026 SForm 4 →Aug 6, 4:10 pm EDTIP FIBRE DEVICES LTD10% Owner30,313$95.74$2,902,1476,405,989−0.47%10b5-1
Jul 31, 2026 SForm 4 →Aug 4, 4:58 pm EDTIP FIBRE DEVICES LTD10% Owner27,000$85.81$2,316,8996,436,302−0.42%10b5-1
Jul 31, 2026 SForm 4 →Aug 4, 4:56 pm EDTEugene A ScherbakovDirector, 10% Owner1,524$86.61$131,99448,210−3.06%10b5-1
Jul 21, 2026 SForm 4 →Jul 22, 4:12 pm EDTValentin Gapontsev Trust I10% Owner56,316$102.31$5,761,4756,670,283−0.84%10b5-1
Jun 29, 2026 SForm 4 →Jul 1, 4:36 pm EDTIP FIBRE DEVICES LTD10% Owner65,700$103.64$6,809,2336,463,302−1.01%10b5-1
Jun 29, 2026 SForm 4 →Jul 1, 4:34 pm EDTAngelo P LoprestiSVP, Secretary & Gen Counsel, 10% Owner1,000$110.33$110,33059,841−1.64%10b5-1
Jun 29, 2026 SForm 4 →Jul 1, 4:32 pm EDTEugene A ScherbakovDirector, 10% Owner1,524$101.55$154,75749,734−2.97%10b5-1
Jun 22, 2026 SForm 4 →Jun 23, 4:24 pm EDTTang AgnesDirector1,511$117.85$178,0789,588−13.6%10b5-1
Jun 5, 2026 FForm 4 →Jun 8, 4:10 pm EDTMark Milton GitinCEO, Director4,641$107.37$498,30487,232—

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.