Ipg Photonics (IPGP)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-22 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: IPG PHOTONICS CORP (IPGP) CIK: 0001111928 --- Reporting Owner --- Name: Agnes Tang CIK: 0001919257 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-22 | Code: S (Open market sale) Shares: -775 | Price: $117.32 Total Value: $90,923.00 Shares Owned After: 10,324 | Ownership: D (Direct) Footnotes: [F2] The reported transaction involves sale transactions ranging from $116.86 to $117.85 per share. The weighted average price per share was $117.32. 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. [F1] The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2025. [Transaction #2] Security: Common Stock Date: 2026-06-22 | Code: S (Open market sale) Shares: -536 | Price: $118.08 Total Value: $63,290.88 Shares Owned After: 9,788 | Ownership: D (Direct) Footnotes: [F3] The reported transaction involves sale transactions ranging from $117.88 to $118.32 per share. The weighted average price per share was $118.08. 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. [F1] The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2025. [Transaction #3] Security: Common Stock Date: 2026-06-22 | Code: S (Open market sale) Shares: -200 | Price: $119.32 Total Value: $23,864.00 Shares Owned After: 9,588 | Ownership: D (Direct) Footnotes: [F4] The reported transaction involves sale transactions ranging from $119.16 to $119.48 per share. The weighted average price per share was $119.32. 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. [F1] The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2025. --- Footnotes (Complete Index) --- F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2025. F2: The reported transaction involves sale transactions ranging from $116.86 to $117.85 per share. The weighted average price per share was $117.32. 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 $117.88 to $118.32 per share. The weighted average price per share was $118.08. 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 $119.16 to $119.48 per share. The weighted average price per share was $119.32. 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 (2026-06-23)