IP FIBRE DEVICES LTD - 04 Aug 2026 Form 4 Insider Report for IPG PHOTONICS CORP (IPGP)

Reporting relationship: 10%+ Owner
Issuer ticker: IPGP
Reported as of: 04 Aug 2026
Net transaction value: -$2,902,147
SEC form: 4
Accepted by SEC: 06 Aug 2026, 16:10:07 UTC
Prior SEC filing: 04 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Adam N. King, Attorney-in-Fact

Key filing fact

IP FIBRE DEVICES LTD filed Form 4 for IPG PHOTONICS CORP (IPGP) on 06 Aug 2026.

Key facts

This page summarizes IP FIBRE DEVICES LTD's Form 4 filing for IPG PHOTONICS CORP (IPGP).
5 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 06 Aug 2026, 16:10.

Change

Previous filing in this sequence was filed on 04 Aug 2026.
Current net transaction value: -$2,902,147.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001130423 Primary reporting owner

IP FIBRE DEVICES LTD

Relationship: 10%+ Owner
Address: C/O IPG PHOTONICS CORPORATION, 377 SIMARANO DRIVE, MARLBOROUGH
Signature: /s/ Adam N. King, Attorney-in-Fact
Signature date: 05 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IPGP transaction

Common Stock

Sale

Transaction value: $1,161,386
Shares: -12,202
Change %: -0.19%
Price: $95.18
Shares after: 6,424,100
Date: 04 Aug 2026
Ownership: Direct
Footnotes: F1, F2

IPGP transaction

Common Stock

Sale

Transaction value: $1,135,333
Shares: -11,912
Change %: -0.19%
Price: $95.31
Shares after: 6,412,188
Date: 05 Aug 2026
Ownership: Direct
Footnotes: F1, F3

IPGP transaction

Common Stock

Sale

Transaction value: $128,207
Shares: -1,325
Change %: -0.02%
Price: $96.76
Shares after: 6,410,863
Date: 05 Aug 2026
Ownership: Direct
Footnotes: F1, F4

IPGP transaction

Common Stock

Sale

Transaction value: $422,930
Shares: -4,324
Change %: -0.07%
Price: $97.81
Shares after: 6,406,539
Date: 05 Aug 2026
Ownership: Direct
Footnotes: F1, F5

IPGP transaction

Common Stock

Sale

Transaction value: $54,290
Shares: -550
Change %: -0.01%
Price: $98.71
Shares after: 6,405,989
Date: 05 Aug 2026
Ownership: Direct
Footnotes: F1, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 6 footnotes

Footnote 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.

Footnote F2

The reported transaction involves sale transactions ranging from $95.00 to $95.51 per share. The weighted average price per share was $95.18. 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.

Footnote F3

The reported transaction involves sale transactions ranging from $95.03 to $95.99 per share. The weighted average price per share was $95.31. 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.

Footnote F4

The reported transaction involves sale transactions ranging from $96.32 to $97.13 per share. The weighted average price per share was $96.76. 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.

Footnote F5

The reported transaction involves sale transactions ranging from $97.39 to $98.19 per share. The weighted average price per share was $97.81. 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.

Footnote F6

The reported transaction involves sale transactions ranging from $98.64 to $98.81 per share. The weighted average price per share was $98.71. 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.