Materialise (Nasdaq: MTLS) details June 2026 share buyback activity

Rhea-AI Filing Summary

Materialise NV is updating investors on progress under its share buy-back program announced on 30 October 2025. The company has authorized an independent financial intermediary to repurchase up to EUR 30 million of its shares.

Between 1 and 5 June 2026, Materialise bought back 79,318 shares on Nasdaq at an average price of EUR 5.72, for a total of EUR 454,021. No shares were acquired through cross trades or block trades, only via the central order book.

Since the program started on 26 January 2026, Materialise has repurchased 887,440 shares for EUR 4,144,651 (USD 4,866,424), which represents about 1.5% of its total shares outstanding. The company currently holds these 887,440 treasury shares.

Key Figures

Buyback mandate: EUR 30 million Weekly shares repurchased: 79,318 shares Weekly buyback spend: EUR 454,021 +5 more

8 metrics

Buyback mandate EUR 30 million Maximum amount under share buy-back program

Weekly shares repurchased 79,318 shares Bought between 1–5 June 2026

Weekly buyback spend EUR 454,021 Consideration for 79,318 shares in early June 2026

Average repurchase price EUR 5.72/share Average price paid 1–5 June 2026

Cumulative shares repurchased 887,440 shares Since 26 January 2026 program start

Cumulative buyback spend (EUR) EUR 4,144,651 Total consideration since program start

Cumulative buyback spend (USD) USD 4,866,424 Stated USD equivalent of cumulative spend

Share of outstanding 1.5% Cumulative repurchases as portion of total shares outstanding

Key Terms

share buy-back program, discretionary mandate, independent financial intermediary, central order book, +2 more

6 terms

share buy-back program financial

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

A share buy-back program is when a company uses cash (or borrows) to buy its own stock from the open market or shareholders, reducing the number of shares available to investors. For investors this matters because fewer shares can raise earnings per share and often support the stock price, while signaling that management believes the shares are a good use of cash—similar to a retailer buying back coupons so each remaining coupon becomes relatively more valuable.

discretionary mandate financial

"Materialise has granted a discretionary mandate to an independent financial intermediary to repurchase Materialise shares."

independent financial intermediary financial

"Materialise has granted a discretionary mandate to an independent financial intermediary to repurchase Materialise shares."

central order book financial

"79,318 shares were repurchased through the central order book of the following exchanges."

cross trades financial

"No shares were repurchased through cross trades or block trades."

block trades financial

"No shares were repurchased through cross trades 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.

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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 June 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 June 8, 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: June 8, 2026

Exhibit 99.1

MATERIALISE

SHARE-BUY BACK PROGRAM

Leuven – 8 June 2026 – 22h00 CET Regulated information¹

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

8 June 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 79,318 Materialise shares in the period from 1 June 2026 up to and including 5 June 2026. The shares were repurchased at an average price of 5.72 EUR per share for a total consideration of 454,021 EUR.

79,318 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)
1-Jun-2026		NASDAQ			-				-				-				-
2-Jun-2026		NASDAQ				1,100				6,461				7,527				5.87
3-Jun-2026		NASDAQ				25,085				143,024				166,108				5.70
4-Jun-2026		NASDAQ				16,033				94,092				109,523				5.87
5-Jun-2026		NASDAQ				37,100				210,444				244,956				5.67
Total of the week						79,318				454,021				528,114				5.72

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 887,440 shares for a total amount of 4,144,651 EUR (4,866,424 USD) under the share buy-back program. This corresponds to 1.5% of the total shares outstanding.

Materialise currently holds 887,440 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.

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.

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.

FAQ

What does Materialise (MTLS) report in its latest share buyback update?

Materialise reports continued progress under its share buy-back program. It repurchased 79,318 shares between 1 and 5 June 2026, spending EUR 454,021 at an average price of EUR 5.72 per share on Nasdaq’s central order book.

How large is Materialise’s (MTLS) total share buyback so far?

Since 26 January 2026, Materialise has repurchased 887,440 shares. The company spent EUR 4,144,651, equivalent to USD 4,866,424, under its program, and these treasury shares represent about 1.5% of its total shares outstanding to date.

What is the maximum size of Materialise’s (MTLS) share buyback program?

Materialise’s board authorized a share buy-back program of up to EUR 30 million. The company granted a discretionary mandate to an independent financial intermediary to execute these repurchases in the market in accordance with applicable Belgian corporate regulations.

On which market did Materialise (MTLS) execute recent share repurchases?

Materialise executed its recent share buybacks through the central order book of Nasdaq. During 1–5 June 2026, all 79,318 repurchased shares were bought on this exchange, with no transactions done via cross trades or block trades.

What average prices did Materialise (MTLS) pay in early June 2026 buybacks?

In the week of 1–5 June 2026, Materialise paid an overall average price of EUR 5.72 per share. Daily averages ranged around this level, including EUR 5.87, EUR 5.70, EUR 5.87, and EUR 5.67 on the individual trading days reported.

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 EXHIBIT 99.1 22.1 KB