Ipg Photonics (IPGP)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-26 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: IPG PHOTONICS CORP (IPGP) CIK: 0001111928 --- Reporting Owner --- Name: PEELER JOHN R CIK: 0001053572 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-26 | Code: P (Open market purchase) Shares: +1,552 | Price: $72.84 Total Value: $113,047.68 Shares Owned After: 19,728 | Ownership: D (Direct) Footnotes: [F1] The reported transaction involves purchase transactions ranging from $72.44 to $73.37 per share. The weighted average price per share was $72.84. 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. [Transaction #2] Security: Common Stock Date: 2026-08-26 | Code: P (Open market purchase) Shares: +1,158 | Price: $74.57 Total Value: $86,352.06 Shares Owned After: 20,886 | Ownership: D (Direct) Footnotes: [F2] The reported transaction involves purchase transactions ranging from $74.12 to $75.07 per share. The weighted average price per share was $74.57. 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. --- Footnotes (Complete Index) --- F1: The reported transaction involves purchase transactions ranging from $72.44 to $73.37 per share. The weighted average price per share was $72.84. 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. F2: The reported transaction involves purchase transactions ranging from $74.12 to $75.07 per share. The weighted average price per share was $74.57. 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. --- Signature --- /s/ /s/ Adam N. King, Attorney-in-Fact (2026-08-27)