Materialise (NASDAQ: MTLS) details first repurchases under EUR 30m buy-back

Rhea-AI Filing Summary

Materialise NV reports initial progress on its share buy-back program of up to EUR 30 million. Between 26 and 30 January 2026, the company repurchased 44,178 shares on Nasdaq at an average price of EUR 4.68 per share, for a total of EUR 206,562.

These purchases represent 0.1% of total shares outstanding, and Materialise now holds the same number of own shares. All trades were executed via the central order book, with no cross or block trades, under a discretionary mandate to an independent financial intermediary.

Form 6-K: How Foreign Companies Report to the SEC →

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 February 2026

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  ¨

Attached as Exhibit 99.1 hereto is a copy of a press release regarding Materialise NV’s ADS Buyback Program.

EXHIBIT INDEX

Exhibit		Description
99.1		Press Release dated February 2, 2026

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: February 2, 2026

Exhibit 99.1

MATERIALISE

SHARE-BUY BACK PROGRAM

Leuven – 2 February 2026 – 18:30 CET Regulated information¹

Materialise reports on the progress of its share buy-back program announced on 30 October 2025.

2 February 2026 – Materialise NV (Euronext: MTLS) (Nasdaq: MTLS) (“Materialise”) (“the Company”) hereby discloses certain information in relation to its share buyback program announced on 30 October 2025, in accordance with Article 8:4 of the Royal Decree of 29 April 2019 implementing the Belgian Code on Companies and Associations. Under this program, Materialise has granted a discretionary mandate to an independent financial intermediary to repurchase Materialise shares for an amount of up to EUR 30 million.

Materialise reports the purchase of 44,178 Materialise shares in the period from 26 January 2026 up to and including 30 January 2026. The shares were repurchased at an average price of 4.68 EUR per share for a total consideration of 206,562 EUR.

44,178 shares were repurchased through the central order book of the following exchanges:

Date of repurchase		Exchange				Number of shares				Total amount (EUR)				Total amount (USD)				Average price (EUR)
26-Jan-2026			NASDAQ				5,004				24,375				28,850				4.87
27-Jan-2026			NASDAQ				8,410				40,519				48,335				4.82
28-Jan-2026			NASDAQ				7,682				36,327				43,498				4.73
29-Jan-2026			NASDAQ				19,882				90,630				108,466				4.56
30-Jan-2026			NASDAQ				3,200				14,711				17,534				4.60
Total							44,178				206,562				246,683				4.68

No shares were repurchased through cross trades or block trades.

Since the start of the share buy-back program on 26^th of January, Materialise has bought back 44,178 shares for a total amount of 206,562 EUR (264,683 USD) under the share buy-back program. This corresponds to 0.1% of the total shares outstanding.

Materialise currently holds 44,178 own shares.

The overview relating to the share buy-back program is available on https://investors.materialise.com/ and will be updated on a weekly basis.

About Materialise

Materialise incorporates more than three decades of 3D printing experience into a range of software solutions and 3D printing services that empower sustainable 3D printing applications. Our open, secure, and flexible end-to-end solutions enable industrial manufacturing and mass personalization in various industries — including healthcare, automotive, aerospace, eyewear, art and design, wearables, and consumer goods. Headquartered in Belgium and with branches worldwide, Materialise combines the largest group of software developers in the industry with one of the world's largest and most complete 3D printing facilities.

¹ The enclosed information constitutes regulated information as defined in the Belgian Royal Decree of 14 November 2007 regarding the duties of issuers of financial instruments which have been admitted for trading on a regulated market.

FAQ

What does Materialise (MTLS) disclose in its February 2026 6-K filing?

Materialise discloses progress on its share buy-back program. The company repurchased 44,178 shares on Nasdaq from 26–30 January 2026 for EUR 206,562 total, at an average price of EUR 4.68 per share under a previously announced EUR 30 million mandate.

How many Materialise (MTLS) shares have been repurchased so far?

Materialise has repurchased 44,178 shares since the start of its buy-back program on 26 January 2026. These shares cost EUR 206,562 (USD 264,683) in total and represent about 0.1% of the company’s total shares outstanding as disclosed.

What is the size of Materialise’s (MTLS) authorized share buy-back program?

Materialise has authorized a share buy-back program of up to EUR 30 million. The company has granted a discretionary mandate to an independent financial intermediary to execute repurchases, primarily through the central order book of exchanges in accordance with Belgian regulations.

At what prices did Materialise (MTLS) repurchase its shares in January 2026?

During 26–30 January 2026, Materialise repurchased shares at daily average prices between EUR 4.56 and EUR 4.87. The overall average repurchase price for the 44,178 shares bought in this period was EUR 4.68 per share on Nasdaq.

What percentage of Materialise (MTLS) share capital has been bought back?

The 44,178 shares repurchased under the buy-back program correspond to 0.1% of Materialise’s total shares outstanding. This gives investors a sense of the program’s scale so far relative to the company’s overall equity base.

Where can investors follow updates on the Materialise (MTLS) share buy-back?

Investors can follow weekly updates on the Materialise share buy-back program on the company’s investor relations website at https://investors.materialise.com/. The overview is updated regularly with new repurchase data and program progress information.