=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-07-31
10b5-1 Pre-arranged Plan: Yes
--- Issuer ---
Name: IPG PHOTONICS CORP (IPGP)
CIK: 0001111928
--- Reporting Owner ---
Name: IP FIBRE DEVICES LTD
CIK: 0001130423
Role: 10%+ Owner
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock
Date: 2026-07-31 | Code: S (Open market sale)
Shares: -25,994 | Price: $85.76
Total Value: $2,229,245.44
Shares Owned After: 6,437,308 | Ownership: D (Direct)
Footnotes:
[F2] The reported transaction involves sale transactions ranging from $85.00 to $85.99 per share. The weighted average price per share was $85.76. 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: 2026-07-31 | Code: S (Open market sale)
Shares: -506 | Price: $86.14
Total Value: $43,586.84
Shares Owned After: 6,436,802 | Ownership: D (Direct)
Footnotes:
[F3] The reported transaction involves sale transactions ranging from $86.00 to $86.40 per share. The weighted average price per share was $86.14. 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: 2026-07-31 | Code: S (Open market sale)
Shares: -200 | Price: $87.45
Total Value: $17,490.00
Shares Owned After: 6,436,602 | Ownership: D (Direct)
Footnotes:
[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: 2026-07-31 | Code: S (Open market sale)
Shares: -300 | Price: $88.59
Total Value: $26,577.00
Shares Owned After: 6,436,302 | Ownership: D (Direct)
Footnotes:
[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 $85.00 to $85.99 per share. The weighted average price per share was $85.76. 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 $86.00 to $86.40 per share. The weighted average price per share was $86.14. 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 (2026-08-04)
