# EDGAR Filing Document

**Accession Number:** 0001111928
**File Stem:** 0001111928-26-000087
**Filing Date:** 2026-4
**Character Count:** 2478
**Document Hash:** bf9a67fc20f0b251768131c45e962f64
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001111928-26-000087.hdr.sgml**: 20260401

**ACCESSION NUMBER**: 0001111928-26-000087

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 6

**FILED AS OF DATE**: 20260401

**DATE AS OF CHANGE**: 20260401

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** IPG PHOTONICS CORP
- **CENTRAL INDEX KEY:** 0001111928
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 043444218
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33155
- **FILM NUMBER:** 26828556

**BUSINESS ADDRESS:**
- **STREET 1:** 377 SIMARANO DRIVE
- **CITY:** MARLBOROUGH
- **STATE:** MA
- **ZIP:** 01752
- **BUSINESS PHONE:** 5083731100

**MAIL ADDRESS:**
- **STREET 1:** 377 SIMARANO DRIVE
- **CITY:** MARLBOROUGH
- **STATE:** MA
- **ZIP:** 01752

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**(Rule 14a-101)**

**SCHEDULE 14A**

**Proxy Statement Pursuant to Section 14(a) of the**

**Securities Exchange Act of 1934 (Amendment No.__)**

🗹 Filed by the Registrant ◻ Filed by a Party other than the Registrant

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| | |
|:---|:---|
| CHECK THE APPROPRIATE BOX: | CHECK THE APPROPRIATE BOX: |
| ◻ | Preliminary Proxy Statement |
| ◻ | Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ◻ | Definitive Proxy Statement |
| 🗹 | Definitive Additional Materials |
| ◻ | Soliciting Material Pursuant to Section 240.14a-12 |

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![footer_logoa.jpg](footer_logoa.jpg)

**IPG Photonics Corporation**

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

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| | |
|:---|:---|
| Payment of Filing Fee (Check all boxes that apply): | Payment of Filing Fee (Check all boxes that apply): |
| 🗹 | No fee required. |
| ◻ | Fee paid previously with preliminary materials. |
| ◻ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 |

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