# EDGAR Filing Document

**Accession Number:** 0001111928
**File Stem:** 0001111928-26-000051
**Filing Date:** 2026-2
**Character Count:** 8108
**Document Hash:** 68f1826b8581d521eb3e2740c62eb4dc
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001111928-26-000051.hdr.sgml**: 20260225

**ACCESSION NUMBER**: 0001111928-26-000051

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20260225

**ITEM INFORMATION**: Other Events

**FILED AS OF DATE**: 20260225

**DATE AS OF CHANGE**: 20260225

**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:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33155
- **FILM NUMBER:** 26674517

**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

?xml version='1.0' encoding='ASCII'? ipgp-20260225

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934**

**February 25, 2026**

*Date of Report (Date of earliest event reported)*

**IPG PHOTONICS CORPORATION**

*(Exact name of registrant as specified in its charter)*

---

| | | |
|:---|:---|:---|
| **Delaware**<br>*(State or Other Jurisdiction*<br> *of Incorporation)* | **001-33155**<br>*(Commission File No.)* | **04-3444218**<br> *(IRS Employer*<br> *Identification No.)* |

---

**377 Simarano Drive**

**Marlborough, Massachusetts 01752**

*(Address of Principal Executive Offices, including Zip Code)*

(508) 373-1100

*(Registrant's telephone number)*

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol** | **Name of each exchange on which registered** |
| Common Stock, par value $0.0001 per share | IPGP | Nasdaq Global Select Market |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

------

**Item 8.01. Other Events.**

On February 25, 2026, IPG Photonics Corporation (the "<u>Company</u>") issued a press release announcing that the Local Division of the Unified Patent Court ("<u>UPC</u>") located in Mannheim, Germany issued a decision in one of the two previously disclosed patent infringement cases brought by affiliates of Trumpf SE & Co. KG against IPG Laser GmbH & Co. KG, a German subsidiary of the Company. The press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

**Item 9.01. Financial Statements and Exhibits**

(d) Exhibits

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| | |
|:---|:---|
| **Exhibit Number** | **Exhibit Description** |
| Exhibit 99.1 | <u>[Press Release issued by IPG Photonics Corporation on February 2](ipgp02242026x22026trumpfde.htm)[5](ipgp02242026x22026trumpfde.htm)[, 2026.](ipgp02242026x22026trumpfde.htm)</u> |
| Exhibit 104 | Inline XBRL for the cover page of this Current Report on Form 8-K. |

---

------

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this Current Report on Form 8-K to be signed on its behalf by the undersigned thereunto duly authorized.

---

| | | |
|:---|:---|:---|
| | **IPG PHOTONICS CORPORATION** | **IPG PHOTONICS CORPORATION** |
| February 25, 2026 | By: | /s/ Angelo P. Lopresti |
|  |  | Angelo P. Lopresti |
|  |  | Senior Vice President, General Counsel and Corporate Secretary |

---

## Exhibit 99.1

**Exhibit 99.1**

![image1a.jpg](image1a.jpg)

**IPG PHOTONICS ANNOUNCES RULING IN UNIFIED PATENT COURT**

**MARLBOROUGH, Mass., February 25, 2026** - <u>IPG Photonics Corporation</u> (NASDAQ: IPGP), the global leader in fiber laser technology, announced today that the Local Division of the Unified Patent Court (UPC) located in Mannheim, Germany has issued a decision in a patent infringement case brought by Trumpf SE & Co. KG ("Trumpf").

The court ruled that certain designs of IPG's adjustable mode beam (AMB) lasers used in welding and cutting applications infringed European Patent 2,951,625. The decision impacts certain AMB laser products sold in seven UPC contracting member states, including Germany, France and Italy, affecting less than 1% of IPG's total sales.

The Company is implementing contingency measures to support AMB customers. IPG's other lasers were not involved in the lawsuit and IPG's product portfolio remains broadly available. Remedies available to the patent owner, including an injunction, recall and damages, would be determined at a subsequent time after the required conditions have been satisfied.

IPG respectfully disagrees with the decision and plans to file an appeal with the UPC Court of Appeal.

**Contact**

Eugene Fedotoff

Senior Director, Investor Relations

IPG Photonics Corporation

508-597-4713

efedotoff@ipgphotonics.com

**About IPG Photonics Corporation**

IPG Photonics Corporation is the leader in high-power fiber lasers and amplifiers used primarily in materials processing and other diverse applications. The Company's mission is to develop innovative laser solutions, making the world a better place. IPG accomplishes this mission by delivering superior performance, reliability, and usability at a lower total cost of ownership compared with other types of lasers and non-laser tools, allowing end users to increase productivity and decrease costs. IPG is headquartered in Marlborough, Massachusetts and has more than 30 facilities worldwide. For more information, visit www.ipgphotonics.com.

**Safe Harbor Statement**

Information and statements provided by IPG and its employees, including statements in this press release, that relate to future plans, events or performance are forward-looking statements. These statements involve risks and uncertainties. Any statements in this press release that are not statements of historical fact are forward-looking statements, including those related to the percentage of total sales impacted by the decision, remedies determined at a subsequent time, implementing contingency measures to support AMB customers, and filing an appeal with the UPC Court of Appeals. Factors that could cause actual results to differ materially include risks and uncertainties, including risks associated with intellectual property and litigation, and other risks identified in IPG's SEC filings. Readers are encouraged to refer to the risk factors described in IPG's Annual Report on Form 10-K (filed with the SEC on February 23, 2026) and IPG's reports filed with the SEC, as applicable. Actual results, events and performance may differ materially. Readers are cautioned not to rely on the forward-looking statements, which speak only as of the date hereof. IPG undertakes no obligation to update the forward-looking statements that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.