=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-07-21
10b5-1 Pre-arranged Plan: Yes
--- Issuer ---
Name: IPG PHOTONICS CORP (IPGP)
CIK: 0001111928
--- Reporting Owner ---
Name: Valentin Gapontsev Trust I
CIK: 0001508155
Role: 10%+ Owner
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock
Date: 2026-07-21 | Code: S (Open market sale)
Shares: -1,000 | Price: $100.08
Total Value: $100,080.00
Shares Owned After: 6,725,599 | Ownership: D (Direct)
Footnotes:
[F2] The reported transaction involves sale transactions ranging from $99.84 to $100.57 per share. The weighted average price per share was $100.08. 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 March 17, 2026.
[Transaction #2]
Security: Common Stock
Date: 2026-07-21 | Code: S (Open market sale)
Shares: -7,100 | Price: $101.20
Total Value: $718,520.00
Shares Owned After: 6,718,499 | Ownership: D (Direct)
Footnotes:
[F3] The reported transaction involves sale transactions ranging from $100.99 to $101.98 per share. The weighted average price per share was $101.20. 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 March 17, 2026.
[Transaction #3]
Security: Common Stock
Date: 2026-07-21 | Code: S (Open market sale)
Shares: -24,347 | Price: $102.04
Total Value: $2,484,367.88
Shares Owned After: 6,694,152 | Ownership: D (Direct)
Footnotes:
[F4] The reported transaction involves sale transactions ranging from $102.00 to $102.94 per share. The weighted average price per share was $102.04. 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 March 17, 2026.
[Transaction #4]
Security: Common Stock
Date: 2026-07-21 | Code: S (Open market sale)
Shares: -23,869 | Price: $103.00
Total Value: $2,458,507.00
Shares Owned After: 6,670,283 | Ownership: D (Direct)
Footnotes:
[F5] The reported transaction involves sale transactions ranging from $103.00 to $103.13 per share. The weighted average price per share was $103.00. 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 March 17, 2026.
--- 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 March 17, 2026.
F2: The reported transaction involves sale transactions ranging from $99.84 to $100.57 per share. The weighted average price per share was $100.08. 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.
F3: The reported transaction involves sale transactions ranging from $100.99 to $101.98 per share. The weighted average price per share was $101.20. 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 $102.00 to $102.94 per share. The weighted average price per share was $102.04. 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 $103.00 to $103.13 per share. The weighted average price per share was $103.00. 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 for Valentin Gapontsev Trust I (2026-07-22)
