[6-K] MATERIALISE NV Current Report (Foreign Issuer)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

Commission File Number: 001-36515

Materialise NV

Technologielaan 15

3001 Leuven

Belgium

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  x            Form 40-F  ¨

EXHIBIT INDEX

Exhibit		Description
99.1		Press Release dated October 28, 2025

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	MATERIALISE NV
	By:	/s/ Brigitte de Vet-Veithen
	Name:	Brigitte de Vet-Veithen
		De Vet Management BV
	Title:	Chief Executive Officer

Date: October 28, 2025