UPC rules against IPG Photonics (NASDAQ: IPGP) in Trumpf AMB laser patent case

Rhea-AI Filing Summary

IPG Photonics Corporation reported that the Unified Patent Court’s local division in Düsseldorf ruled that certain uses and designs of its adjustable mode beam (AMB) lasers infringe European Patent 2,624,031 held by Trumpf SE & Co. KG. The decision currently affects AMB laser products sold in Germany, France and Italy and relates to less than 1% of IPG’s total sales. IPG is putting contingency measures in place to support AMB customers, while other IPG laser models were not involved and the broader product portfolio remains available. Remedies for the patent owner, such as an injunction, product recall and damages, may be enforced and determined later once required conditions are met. IPG disagrees with the decision and plans to appeal to the UPC Court of Appeal and pursue additional available measures.

Insights

Litigation and risk analyst

Adverse patent ruling has limited near-term sales impact but adds legal and operational risk.

The decision by the Unified Patent Court that some uses and designs of IPG’s AMB lasers infringe European Patent 2,624,031 introduces legal and operational uncertainty. Management notes the impact is currently limited to AMB products in Germany, France and Italy and represents less than 1% of total sales.

Key near-term actions include contingency measures to support affected AMB customers and an appeal to the UPC Court of Appeal, along with other measures the company may pursue. Potential remedies for the patent owner—injunction, recall and damages—will be determined later, so financial impact is not yet quantified and will depend on future court decisions.

Investors will likely focus on how effectively IPG maintains customer relationships for AMB products, the outcome of the appeal process, and whether any eventual remedies materially change product availability or cost structure relative to the currently small portion of sales affected.

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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

March 16, 2026

 Date of Report (Date of earliest event reported)

IPG PHOTONICS CORPORATION

(Exact name of registrant as specified in its charter)

Delaware  (State or Other Jurisdiction  of Incorporation)     001-33155  (Commission File No.) 04-3444218  (IRS Employer  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 March 16, 2026, IPG Photonics Corporation (the "Company") issued a press release announcing that the Local Division of the Unified Patent Court located in Dusseldorf, Germany issued a decision in the previously disclosed patent infringement lawsuit 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

Exhibit Number						Exhibit Description
Exhibit 99.1						Press Release issued by IPG Photonics Corporation on March 16, 2026.
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

March 16, 2026

By:

/s/ Angelo P. Lopresti

Angelo P. Lopresti

Senior Vice President, General Counsel and Corporate Secretary

Exhibit 99.1

IPG PHOTONICS ANNOUNCES RULING IN UNIFIED PATENT COURT

MARLBOROUGH, Mass., March 16, 2026 - IPG Photonics Corporation (NASDAQ: IPGP), the global leader in fiber laser technology, announced today that the Local Division of the Unified Patent Court (UPC) located in Düsseldorf, Germany has issued a decision in a patent infringement case brought by Trumpf SE & Co. KG (“Trumpf”).

The court ruled that certain uses and designs of IPG’s adjustable mode beam (AMB) lasers infringed European Patent 2,624,031. The decision impacts AMB laser products sold in Germany, France and Italy, affecting less than 1% of IPG’s total sales.

The Company is implementing contingency measures to support AMB customers. Other lasers models made by IPG 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, may be enforced and 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 and pursue other measures available to it.

IPG previously disclosed that affiliates of Trumpf have brought two separate actions in the Unified Patent Courts in Mannheim, Germany and Düsseldorf, Germany asserting two different patents against IPG’s AMB lasers. IPG previously announced the Mannheim court’s decision and IPG’s intention to appeal. Today’s announcement relates solely to a different patent asserted in the separate Düsseldorf proceeding.

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.

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Exhibit 99.1

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 available to the patent owner, the enforcement and determination of damages, implementing contingency measures to support AMB customers, and filing an appeal with the UPC Court of Appeals and pursuing other measures available to it. 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.

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FAQ

What did the Unified Patent Court decide in IPG Photonics (IPGP) case with Trumpf?

The court ruled that certain uses and designs of IPG’s AMB lasers infringe European Patent 2,624,031 held by Trumpf. The ruling applies to AMB laser products in Germany, France and Italy and introduces potential remedies such as injunctions, recalls and damages to be determined later.

How much of IPG Photonics (IPGP) sales are affected by the UPC patent ruling?

The decision affects less than 1% of IPG’s total sales. It is limited to adjustable mode beam (AMB) laser products sold in Germany, France and Italy, while other IPG laser models were not involved and the broader product portfolio remains available to customers.

Which IPG Photonics products are impacted by the Trumpf patent infringement decision?

The ruling targets certain uses and designs of IPG’s adjustable mode beam (AMB) lasers. Only AMB products sold in Germany, France and Italy are affected. Other IPG laser models were not part of the lawsuit, and the company states its overall product portfolio remains broadly available.

How is IPG Photonics (IPGP) responding to the Unified Patent Court ruling?

IPG plans to appeal to the UPC Court of Appeal and pursue additional measures. The company is also implementing contingency measures to support AMB customers in affected countries while it challenges the decision and awaits any determination of remedies such as injunction, recall or damages.

What potential remedies could result from the IPG Photonics patent case with Trumpf?

Available remedies include an injunction, product recall and damages in favor of the patent owner. These remedies may be enforced and determined later, after specific conditions are satisfied, so the ultimate financial and operational impact on IPG remains to be established by future court decisions.

Does the IPG Photonics (IPGP) ruling affect its entire laser portfolio?

No, the ruling is limited to certain uses and designs of AMB lasers. IPG states that other laser models were not involved in the lawsuit and its overall product portfolio remains broadly available, which helps contain the operational scope of the decision to a small part of its business.

Filing Exhibits & Attachments

4 documents

Press Releases

• EX-99.1 EX-99.1 8.5 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 1.8 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 21.1 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 12.3 KB