| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| SCHERBAKOV EUGENE A | Director, 10%+ Owner | C/O IPG PHOTONICS CORPORATION, 377 SIMARANO DRIVE, MARLBOROUGH | /s/ Angelo P. Lopresti, Attorney-in-Fact | 17 Feb 2026 | 0001378544 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IPGP | Common Stock | Options Exercise | $621,709 | +7,592 | +13% | $81.89 | 66,922 | 13 Feb 2026 | Direct | F1 |
| transaction | IPGP | Common Stock | Tax liability | $881,443 | -5,727 | -8.6% | $153.91 | 61,195 | 13 Feb 2026 | Direct | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IPGP | Employee Stock Option (right to buy) | Options Exercise | $0 | -7,592 | -100% | $0.000000 | 0 | 13 Feb 2026 | Common Stock | 7,592 | $81.89 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | These stock options were exercised on a net share settlement basis. |
| F2 | Represents the number of shares withheld by the Issuer to satisfy the aggregate (i) exercise price and (ii) withholding taxes related to such exercise. |
| F3 | The stock option is fully vested and exercisable. |