Updated Jul 16, 2026 · Last SEC filing 2026-07-01
IPG PHOTONICS CORP (IPGP) has filed 15 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-01. 2 Form 8-K material event filings were reported by IPGP in the last 90 days. 7 Form 144 notices of proposed sale were filed for IPGP stock. InsiderAlpha tracks every IPGP SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Semiconductors & Related Devices (SIC 3674) |
|---|---|
| SEC CIK | 0001111928 |
| Form 4 filings (90d) | 15 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 7 |
| Latest Form 4 filing | 2026-07-01 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| SCHERBAKOV EUGENE A | Director | S — Open-market sale | 200 | $106.66 | $21K | SEC | |
| IP FIBRE DEVICES LTD | 10% Owner | S — Open-market sale | 16.4K | $104.33 | $1.71M | SEC | |
| SCHERBAKOV EUGENE A | Director | S — Open-market sale | 1 | $104.63 | $105 | SEC | |
| IP FIBRE DEVICES LTD | 10% Owner | S — Open-market sale | 17.7K | $102.09 | $1.81M | SEC | |
| SCHERBAKOV EUGENE A | Director | S — Open-market sale | 100 | $102.92 | $10K | SEC | |
| SCHERBAKOV EUGENE A | Director | S — Open-market sale | 250 | $101.24 | $25K | SEC | |
| Lopresti Angelo P | SVP, Secretary & Gen Counsel | S — Open-market sale | 1.0K | $110.33 | $110K | SEC | |
| SCHERBAKOV EUGENE A | Director | S — Open-market sale | 973 | $100.43 | $98K | SEC | |
| IP FIBRE DEVICES LTD | 10% Owner | S — Open-market sale | 2.4K | $101.21 | $243K | SEC | |
| IP FIBRE DEVICES LTD | 10% Owner | S — Open-market sale | 1.8K | $100.19 | $184K | SEC | |
| IP FIBRE DEVICES LTD | 10% Owner | S — Open-market sale | 13.3K | $103.08 | $1.37M | SEC | |
| IP FIBRE DEVICES LTD | 10% Owner | S — Open-market sale | 11.3K | $106.40 | $1.20M | SEC | |
| IP FIBRE DEVICES LTD | 10% Owner | S — Open-market sale | 2.7K | $105.37 | $283K | SEC | |
| Agnes Tang | Director | S — Open-market sale | 775 | $117.32 | $91K | SEC | |
| Agnes Tang | Director | S — Open-market sale | 536 | $118.08 | $63K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for IPG PHOTONICS CORP (IPGP). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| IP FIBRE DEVICES LTD | 7 | $6.81M |
| SCHERBAKOV EUGENE A | 5 | $155K |
| Agnes Tang | 4 | $178K |
| Desmond Jeanmarie F. | 2 | $178K |
| Mammen Timothy PV | 2 | $1.20M |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in IPGP insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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