Materialise repurchases 130,592 shares for €976K

Materialise granted an independent financial intermediary a discretionary mandate to repurchase its shares for up to EUR 30 million.

Rhea-AI Filing Summary

Materialise NV repurchased 130,592 shares from October 5 through October 9, 2026, at an average price of EUR 7.47 per share, for EUR 975,791. The shares were repurchased through the NASDAQ central order book; no shares were repurchased through cross trades or block trades.

The buy-back program was announced on October 30, 2025, and repurchases began on January 26, 2026. Since then, Materialise has bought back 1,626,021 shares for EUR 8,975,171, equal to 2.8% of total shares outstanding. Materialise currently holds 1,626,021 of its own shares.

Filing Explained

The filing adds that the buyback operates under a discretionary intermediary mandate for up to €30 million; this is a purchase ceiling, not a report that the full amount has been spent.

Key Figures

Weekly shares repurchased: 130,592 shares Average repurchase price: EUR 7.47 per share Weekly total consideration: EUR 975,791 +5 more

8 metrics

Weekly shares repurchased 130,592 shares October 5 through October 9, 2026

Average repurchase price EUR 7.47 per share October 5 through October 9, 2026

Weekly total consideration EUR 975,791 Repurchases from October 5 through October 9, 2026

Mandate amount Up to EUR 30 million Discretionary repurchase mandate to an independent financial intermediary

Shares bought back under program 1,626,021 shares Since repurchases began on January 26, 2026

Program repurchase amount EUR 8,975,171 Since repurchases began on January 26, 2026

Share of total shares outstanding 2.8% Corresponds to shares bought back under the program

Own shares held 1,626,021 shares Materialise currently holds these shares

Key Terms

discretionary mandate, central order book, cross trades, block trades

4 terms

discretionary mandate financial

"granted a discretionary mandate to an independent financial intermediary"

central order book financial

"repurchased through the central order book"

cross trades financial

"No shares were repurchased through cross trades"

block trades financial

"or block trades"

A block trade is a single, large buy or sell of shares or bonds arranged privately between big traders rather than piecemeal on the public market. Think of it like buying a whole shipment at once instead of many small shopping trips; it lets large holders move big positions with less immediate disruption but can signal strong buying or selling pressure and cause price swings once the trade is known, so investors watch block trades for clues about market sentiment and liquidity.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many MTLS shares did Materialise repurchase during the week?

Materialise repurchased 130,592 shares from October 5 through October 9, 2026, at an average price of EUR 7.47 per share, for total consideration of EUR 975,791.

How many MTLS shares has Materialise bought back under its program?

Since repurchases began on January 26, 2026, Materialise has bought back 1,626,021 shares for EUR 8,975,171. This corresponds to 2.8% of total shares outstanding, and Materialise currently holds 1,626,021 of its own shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/13/2026 - 04:01 PM EDT Accepted by SEC EDGAR 10/13/2026 - 04:01 PM EDT Learn about SEC filing dates

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 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 October 12, 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: October 13, 2026

Exhibit 99.1

MATERIALISE

SHARE-BUY BACK PROGRAM

Leuven – 12 October 2026 – 22h00 CET Regulated information¹

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

12 October 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 130,592 Materialise shares in the period from 5 October 2026 up to and including 9 October 2026. The shares were repurchased at an average price of 7.47 EUR per share for a total consideration of 975,791 EUR.

130,592 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)
05-Oct-2026	NASDAQ	-	-	-	-
06-Oct-2026	NASDAQ	19,747	149,621	168,608	7.58
07-Oct-2026	NASDAQ	15,698	119,786	133,885	7.63
08-Oct-2026	NASDAQ	39,449	296,721	331,912	7.52
09-Oct-2026	NASDAQ	55,698	409,663	459,068	7.36
Total of the week		130,592	975,791	1,093,473	7.47

No shares were repurchased through cross trades or block trades.

Since the start of the share buy-back program on the 26^th of January 2026, Materialise has bought back 1,626,021 shares for a total amount of 8,975,171 EUR (10,374,203 USD) under the share buy-back program. This corresponds to 2.8% of the total shares outstanding.

Materialise currently holds 1,626,021 of its 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.

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 EXHIBIT 99.1 14.4 KB