| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Buttarazzi Mary E. | VP, Corp Controller and CAO | C/O IPG PHOTONICS CORPORATION, 377 SIMARANO DRIVE, MARLBOROUGH | /s/ Adam N. King, Attorney-in-Fact | 17 Mar 2026 | 0002060185 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IPGP | Common Stock | Sale | $58,110 | -500 | -9.5% | $116.22 | 4,749 | 17 Mar 2026 | Direct |