=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-06-29
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: 2026-06-29 | Code: S (Open market sale)
Shares: -1,841 | Price: $100.19
Total Value: $184,449.79
Shares Owned After: 6,527,161 | Ownership: D (Direct)
Footnotes:
[F2] The reported transaction involves sale transactions ranging from $99.55 to $100.49 per share. The weighted average price per share was $100.19. 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: 2026-06-29 | Code: S (Open market sale)
Shares: -2,405 | Price: $101.21
Total Value: $243,410.05
Shares Owned After: 6,524,756 | Ownership: D (Direct)
Footnotes:
[F3] The reported transaction involves sale transactions ranging from $100.72 to $101.67 per share. The weighted average price per share was $101.21. 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: 2026-06-29 | Code: S (Open market sale)
Shares: -17,735 | Price: $102.09
Total Value: $1,810,566.15
Shares Owned After: 6,507,021 | Ownership: D (Direct)
Footnotes:
[F4] The reported transaction involves sale transactions ranging from $101.72 to $102.65 per share. The weighted average price per share was $102.09. 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: 2026-06-29 | Code: S (Open market sale)
Shares: -13,304 | Price: $103.08
Total Value: $1,371,376.32
Shares Owned After: 6,493,717 | Ownership: D (Direct)
Footnotes:
[F5] The reported transaction involves sale transactions ranging from $102.85 to $103.64 per share. The weighted average price per share was $103.08. 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 #5]
Security: Common Stock
Date: 2026-06-29 | Code: S (Open market sale)
Shares: -16,406 | Price: $104.33
Total Value: $1,711,637.98
Shares Owned After: 6,477,311 | Ownership: D (Direct)
Footnotes:
[F6] The reported transaction involves sale transactions ranging from $103.91 to $104.89 per share. The weighted average price per share was $104.33. 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 #6]
Security: Common Stock
Date: 2026-06-29 | Code: S (Open market sale)
Shares: -2,684 | Price: $105.37
Total Value: $282,813.08
Shares Owned After: 6,474,627 | Ownership: D (Direct)
Footnotes:
[F7] The reported transaction involves sale transactions ranging from $104.95 to $105.92 per share. The weighted average price per share was $105.37. 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 #7]
Security: Common Stock
Date: 2026-06-29 | Code: S (Open market sale)
Shares: -11,325 | Price: $106.40
Total Value: $1,204,980.00
Shares Owned After: 6,463,302 | Ownership: D (Direct)
Footnotes:
[F8] The reported transaction involves sale transactions ranging from $105.95 to $106.87 per share. The weighted average price per share was $106.40. 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 $99.55 to $100.49 per share. The weighted average price per share was $100.19. 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 $100.72 to $101.67 per share. The weighted average price per share was $101.21. 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 $101.72 to $102.65 per share. The weighted average price per share was $102.09. 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 $102.85 to $103.64 per share. The weighted average price per share was $103.08. 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.
F6: The reported transaction involves sale transactions ranging from $103.91 to $104.89 per share. The weighted average price per share was $104.33. 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 $104.95 to $105.92 per share. The weighted average price per share was $105.37. 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 $105.95 to $106.87 per share. The weighted average price per share was $106.40. 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 (2026-07-01)
