19 insiders reported 223 Form 4 transactions for IPG PHOTONICS CORP (IPGP) over the past 18 months (most recent 2026-09-03). Recent activity: Valentin Gapontsev Trust I (10% Owner) Sell 18,091 shares, Valentin Gapontsev Trust I (10% Owner) Sell 4,591 shares, Valentin Gapontsev Trust I (10% Owner) Sell 4,715 shares, PEELER JOHN R (Director) Buy 1,552 shares, PEELER JOHN R (Director) Buy 1,158 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-03 | Valentin Gapontsev Trust I | 10% Owner | Sell | 18,091 | $1.4M |
| 2026-09-03 | Valentin Gapontsev Trust I | 10% Owner | Sell | 4,591 | $347,309 |
| 2026-09-03 | Valentin Gapontsev Trust I | 10% Owner | Sell | 4,715 | $359,519 |
| 2026-08-27 | PEELER JOHN R | Director | Buy | 1,552 | $113,048 |
| 2026-08-27 | PEELER JOHN R | Director | Buy | 1,158 | $86,352 |
| 2026-08-10 | Bucher Paulus | SVP, Global Operations | Sell | 663 | $59,822 |
| 2026-08-06 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 12,202 | $1.2M |
| 2026-08-06 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 11,912 | $1.1M |
| 2026-08-06 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 1,325 | $128,207 |
| 2026-08-06 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 4,324 | $422,930 |
| 2026-08-06 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 550 | $54,290 |
| 2026-08-04 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 506 | $43,587 |
| 2026-08-04 | SCHERBAKOV EUGENE A | Director | Sell | 783 | $67,119 |
| 2026-08-04 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 25,994 | $2.2M |
| 2026-08-04 | SCHERBAKOV EUGENE A | Director | Sell | 200 | $17,268 |
| 2026-08-04 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 200 | $17,490 |
| 2026-08-04 | SCHERBAKOV EUGENE A | Director | Sell | 300 | $26,235 |
| 2026-08-04 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 300 | $26,577 |
| 2026-08-04 | SCHERBAKOV EUGENE A | Director | Sell | 241 | $21,372 |
| 2026-07-22 | Valentin Gapontsev Trust I | 10% Owner | Sell | 1,000 | $100,080 |
| 2026-07-22 | Valentin Gapontsev Trust I | 10% Owner | Sell | 7,100 | $718,520 |
| 2026-07-22 | Valentin Gapontsev Trust I | 10% Owner | Sell | 24,347 | $2.5M |
| 2026-07-22 | Valentin Gapontsev Trust I | 10% Owner | Sell | 23,869 | $2.5M |
| 2026-07-01 | IP FIBRE DEVICES LTD | 10% Owner | Sell | 1,841 | $184,450 |
| 2026-07-01 | SCHERBAKOV EUGENE A | Director | Sell | 973 | $97,718 |
Source: SEC Form 4 filings · as of 2026-09-03