| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Bucher Paulus | SVP, Global Operations | C/O IPG PHOTONICS CORPORATION, 377 SIMARANO DRIVE, MARLBOROUGH | /s/ Adam N. King, Attorney-in-Fact | 21 Jul 2025 | 0001929263 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | IPGP | Common Stock | 0 | 01 Jul 2025 | Direct |