| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| IP FIBRE DEVICES LTD | 10%+ Owner | C/O IPG PHOTONICS CORPORATION, 377 SIMARANO DRIVE, MARLBOROUGH | /s/ Adam N. King, Attorney-in-Fact | 21 Oct 2025 | 0001130423 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IPGP | Common Stock | Sale | $1,327,180 | -15,684 | -0.23% | $84.62 | 6,834,153 | 17 Oct 2025 | Direct | F1, F2 |
| transaction | IPGP | Common Stock | Sale | $74,996 | -875 | -0.01% | $85.71 | 6,833,278 | 17 Oct 2025 | Direct | F1, F3 |
| transaction | IPGP | Common Stock | Sale | $569,895 | -6,543 | -0.1% | $87.10 | 6,826,735 | 20 Oct 2025 | Direct | F1, F4 |
| transaction | IPGP | Common Stock | Sale | $1,401,774 | -15,951 | -0.23% | $87.88 | 6,810,784 | 20 Oct 2025 | Direct | F1, F5 |
| transaction | IPGP | Common Stock | Sale | $101,644 | -1,148 | -0.02% | $88.54 | 6,809,636 | 20 Oct 2025 | Direct | F1, F6 |
| transaction | IPGP | Common Stock | Sale | $1,002,860 | -11,426 | -0.17% | $87.77 | 6,798,210 | 21 Oct 2025 | Direct | F1, F7 |
| transaction | IPGP | Common Stock | Sale | $1,104,147 | -12,540 | -0.18% | $88.05 | 6,785,670 | 21 Oct 2025 | Direct | F1, F8 |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025. |
| F2 | The reported transaction involves sale transactions ranging from $84.05 to $85.02 per share. The weighted average price per share was $84.62. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price. |
| F3 | The reported transaction involves sale transactions ranging from $85.38 to $85.98 per share. The weighted average price per share was $85.71. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price. |
| F4 | The reported transaction involves sale transactions ranging from $86.41 to $87.38 per share. The weighted average price per share was $87.10. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price. |
| F5 | The reported transaction involves sale transactions ranging from $87.43 to $88.37 per share. The weighted average price per share was $87.88. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price. |
| F6 | The reported transaction involves sale transactions ranging from $88.44 to $88.69 per share. The weighted average price per share was $88.54. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price. |
| F7 | The reported transaction involves sale transactions ranging from $86.90 to $87.89 per share. The weighted average price per share was $87.77. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price. |
| F8 | The reported transaction involves sale transactions ranging from $87.99 to $88.33 per share. The weighted average price per share was $88.05. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price. |