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Company · IPGP

IPG Photonics Corporation

Name as listed on its exchange; filed with the SEC as IPG PHOTONICS CORP.

Nasdaq's symbol directory lists IPGP on Nasdaq as “IPG Photonics Corporation - Common Stock”.

In the 12 months to Nov 8, 2026: insiders bought on 1 occasion ($199K); insiders sold on 15 occasions ($23.6M); 3 planned-sale notices; 2 filings by holders of 5% or more; 1 company report (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $199K in total; Insider sales: $23.6M in total.Jun: Insider sales $7.3MJul: Insider sales $8.2MAug: Insider purchases $199KAug: Insider sales $2.9MSep: Insider sales $2.1MOct: Insider sales $1.6MNov: Insider sales $1.6MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $199KInsider sales below: $23.6M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. IP FIBRE DEVICES LTD sold on 5 days all under a 10b5-1 plan latest Oct 2, 2026 sold $13.3M
  2. Valentin Gapontsev Trust I sold on 5 days all under a 10b5-1 plan latest Nov 3, 2026 sold $9.4M
  3. SCHERBAKOV EUGENE A sold on 3 days all under a 10b5-1 plan latest Oct 2, 2026 sold $547K
  4. PEELER JOHN R bought on 1 day latest Aug 26, 2026 bought $199K
  5. Agnes Tang sold on 1 day all under a 10b5-1 plan latest Jun 22, 2026 sold $178K
  6. Lopresti Angelo P, SVP, Secretary & Gen Counsel sold on 1 day all under a 10b5-1 plan latest Jun 29, 2026 sold $110K
Every trade (16)
  1. SELLValentin Gapontsev Trust I sold Nov 3, 2026 14,632 shares 10b5-1 plan (scheduled) filing $1.1M
  2. SELLValentin Gapontsev Trust I sold Nov 2, 2026 6,020 shares 10b5-1 plan (scheduled) filing $453K
  3. SELLIP FIBRE DEVICES LTD sold Oct 2, 2026 15,361 shares 2 legs combined 10b5-1 plan (scheduled) filing $1.3M
  4. SELLSCHERBAKOV EUGENE A sold Oct 2, 2026 3,048 shares 10b5-1 plan (scheduled) filing $260K
  5. SELLValentin Gapontsev Trust I sold Sep 2, 2026 9,306 shares 2 legs combined 10b5-1 plan (scheduled) filing $707K
  6. SELLValentin Gapontsev Trust I sold Sep 1, 2026 18,091 shares 10b5-1 plan (scheduled) filing $1.4M
  7. BUYPEELER JOHN R bought Aug 26, 2026 2,710 shares 2 legs combined filing $199K
  8. SELLIP FIBRE DEVICES LTD sold Aug 5, 2026 18,111 shares 4 legs combined 10b5-1 plan (scheduled) filing $1.7M
  9. SELLIP FIBRE DEVICES LTD sold Aug 4, 2026 12,202 shares 10b5-1 plan (scheduled) filing $1.2M
  10. SELLIP FIBRE DEVICES LTD sold Jul 31, 2026 27,000 shares 4 legs combined 10b5-1 plan (scheduled) filing $2.3M
  11. SELLSCHERBAKOV EUGENE A sold Jul 31, 2026 1,524 shares 4 legs combined 10b5-1 plan (scheduled) filing $132K
  12. SELLValentin Gapontsev Trust I sold Jul 21, 2026 56,316 shares 4 legs combined 10b5-1 plan (scheduled) filing $5.8M
  13. SELLIP FIBRE DEVICES LTD sold Jun 29, 2026 65,700 shares 7 legs combined 10b5-1 plan (scheduled) filing $6.8M
  14. SELLSCHERBAKOV EUGENE A sold Jun 29, 2026 1,524 shares 5 legs combined 10b5-1 plan (scheduled) filing $155K
  15. SELLLopresti Angelo P, SVP, Secretary & Gen Counsel sold Jun 29, 2026 1,000 shares 10b5-1 plan (scheduled) filing $110K
  16. SELLAgnes Tang sold Jun 22, 2026 1,511 shares 3 legs combined 10b5-1 plan (scheduled) filing $178K

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. IP FIBRE DEVICES LTD filed Oct 2, 2026 10% Stockholder 135,000 shares planned sale date 10/02/2026 filing $11.6M
  2. SCHERBAKOV EUGENE A filed Oct 2, 2026 10% Stockholder 7,620 shares planned sale date 10/02/2026 filing $650K
  3. Valentin Gapontsev Trust II filed Sep 22, 2026 Officer 11,688 shares planned sale date 09/22/2026 filing $909K

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. First Eagle Investment Management, LLC filed Aug 6, 2026 Schedule 13G/A passive 3,339,101 shares filing 7.9%
  2. Valentin Gapontsev Trust I filed Jul 28, 2026 Schedule 13D/A may seek influence 6,670,283 shares filing 15.7%

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition filing Nov 3, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.