=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-02-20
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: 2026-02-20 | Code: S (Open market sale)
Shares: -500 | Price: $128.79
Total Value: $64,395.00
Shares Owned After: 6,592,669 | Ownership: D (Direct)
Footnotes:
[F2] The reported transaction involves sale transactions ranging from $128.33 to $129.10 per share. The weighted average price per share was $128.79. 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 June 13, 2025.
[Transaction #2]
Security: Common Stock
Date: 2026-02-20 | Code: S (Open market sale)
Shares: -2,300 | Price: $129.93
Total Value: $298,839.00
Shares Owned After: 6,590,369 | Ownership: D (Direct)
Footnotes:
[F3] The reported transaction involves sale transactions ranging from $129.49 to $130.28 per share. The weighted average price per share was $129.93. 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 June 13, 2025.
[Transaction #3]
Security: Common Stock
Date: 2026-02-20 | Code: S (Open market sale)
Shares: -4,461 | Price: $131.11
Total Value: $584,881.71
Shares Owned After: 6,585,908 | Ownership: D (Direct)
Footnotes:
[F4] The reported transaction involves sale transactions ranging from $130.64 to $131.17 per share. The weighted average price per share was $131.11. 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 June 13, 2025.
[Transaction #4]
Security: Common Stock
Date: 2026-02-20 | Code: S (Open market sale)
Shares: -16,422 | Price: $132.21
Total Value: $2,171,152.62
Shares Owned After: 6,569,486 | Ownership: D (Direct)
Footnotes:
[F5] The reported transaction involves sale transactions ranging from $131.74 to $132.72 per share. The weighted average price per share was $132.21. 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 June 13, 2025.
[Transaction #5]
Security: Common Stock
Date: 2026-02-20 | Code: S (Open market sale)
Shares: -5,484 | Price: $132.94
Total Value: $729,042.96
Shares Owned After: 6,564,002 | Ownership: D (Direct)
Footnotes:
[F6] The reported transaction involves sale transactions ranging from $132.75 to $133.35 per share. The weighted average price per share was $132.94. 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 June 13, 2025.
[Transaction #6]
Security: Common Stock
Date: 2026-02-23 | Code: S (Open market sale)
Shares: -4,241 | Price: $131.41
Total Value: $557,309.81
Shares Owned After: 6,559,761 | Ownership: D (Direct)
Footnotes:
[F7] The reported transaction involves sale transactions ranging from $130.84 to $131.82 per share. The weighted average price per share was $131.41. 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 June 13, 2025.
[Transaction #7]
Security: Common Stock
Date: 2026-02-23 | Code: S (Open market sale)
Shares: -4,604 | Price: $132.31
Total Value: $609,155.24
Shares Owned After: 6,555,157 | Ownership: D (Direct)
Footnotes:
[F8] The reported transaction involves sale transactions ranging from $131.88 to $132.82 per share. The weighted average price per share was $132.31. 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 June 13, 2025.
[Transaction #8]
Security: Common Stock
Date: 2026-02-23 | Code: S (Open market sale)
Shares: -7,994 | Price: $133.61
Total Value: $1,068,078.34
Shares Owned After: 6,547,163 | Ownership: D (Direct)
Footnotes:
[F9] The reported transaction involves sale transactions ranging from $132.91 to $133.90 per share. The weighted average price per share was $133.61. 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 June 13, 2025.
[Transaction #9]
Security: Common Stock
Date: 2026-02-23 | Code: S (Open market sale)
Shares: -16,421 | Price: $134.35
Total Value: $2,206,161.35
Shares Owned After: 6,530,742 | Ownership: D (Direct)
Footnotes:
[F10] The reported transaction involves sale transactions ranging from $133.91 to $134.81 per share. The weighted average price per share was $134.35. 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 June 13, 2025.
[Transaction #10]
Security: Common Stock
Date: 2026-02-23 | Code: S (Open market sale)
Shares: -120 | Price: $134.95
Total Value: $16,194.00
Shares Owned After: 6,530,622 | Ownership: D (Direct)
Footnotes:
[F11] The reported transaction involves sale transactions ranging from $134.92 to $135.12 per share. The weighted average price per share was $134.95. 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 June 13, 2025.
[Transaction #11]
Security: Common Stock
Date: 2026-02-24 | Code: S (Open market sale)
Shares: -100 | Price: $135.28
Total Value: $13,528.00
Shares Owned After: 6,530,522 | 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 June 13, 2025.
[Transaction #12]
Security: Common Stock
Date: 2026-02-24 | Code: S (Open market sale)
Shares: -1,520 | Price: $137.00
Total Value: $208,240.00
Shares Owned After: 6,529,002 | Ownership: D (Direct)
Footnotes:
[F12] The reported transaction involves sale transactions ranging from $136.60 to $137.53 per share. The weighted average price per share was $137.00. 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 June 13, 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 June 13, 2025.
F10: The reported transaction involves sale transactions ranging from $133.91 to $134.81 per share. The weighted average price per share was $134.35. 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.
F11: The reported transaction involves sale transactions ranging from $134.92 to $135.12 per share. The weighted average price per share was $134.95. 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.
F12: The reported transaction involves sale transactions ranging from $136.60 to $137.53 per share. The weighted average price per share was $137.00. 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.
F2: The reported transaction involves sale transactions ranging from $128.33 to $129.10 per share. The weighted average price per share was $128.79. 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 $129.49 to $130.28 per share. The weighted average price per share was $129.93. 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 $130.64 to $131.17 per share. The weighted average price per share was $131.11. 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 $131.74 to $132.72 per share. The weighted average price per share was $132.21. 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.
F6: The reported transaction involves sale transactions ranging from $132.75 to $133.35 per share. The weighted average price per share was $132.94. 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 $130.84 to $131.82 per share. The weighted average price per share was $131.41. 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 $131.88 to $132.82 per share. The weighted average price per share was $132.31. 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.
F9: The reported transaction involves sale transactions ranging from $132.91 to $133.90 per share. The weighted average price per share was $133.61. 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 (2026-02-24)
