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 July 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 July 27, 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: July 27, 2026
Exhibit 99.1

MATERIALISE
SHARE-BUY BACK PROGRAM
| Leuven –
27 July 2026 – 22h00 CET |
Regulated
information1 |
Materialise reports on the progress of its share
buy-back program announced on 30 October 2025.
27 July 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.
| | A. | Purchase of shares in
the period from 20 July up to and including 24 July 2026 |
Materialise reports the purchase of 48,806 Materialise
shares in the period from 20 July 2026 up to and including 24 July 2026. The shares were repurchased at an average price of 5.75 EUR
per share for a total consideration of 280,703 EUR.
48,806 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) | |
| 20-Jul-2026 | |
NASDAQ | |
| 10,972 | | |
| 62,317 | | |
| 71,204 | | |
| 5.68 | |
| 21-Jul-2026 | |
NASDAQ | |
| 10,300 | | |
| 60,306 | | |
| 68,858 | | |
| 5.85 | |
| 22-Jul-2026 | |
NASDAQ | |
| 8,121 | | |
| 46,670 | | |
| 53,241 | | |
| 5.75 | |
| 23-Jul-2026 | |
NASDAQ | |
| 3,435 | | |
| 19,369 | | |
| 22,065 | | |
| 5.64 | |
| 24-Jul-2026 | |
NASDAQ | |
| 15,978 | | |
| 92,041 | | |
| 104,715 | | |
| 5.76 | |
| Total of the week | |
| |
| 48,806 | | |
| 280,703 | | |
| 320,082 | | |
| 5.75 | |
No shares were repurchased through cross trades
or block trades.
Since the start of the share buy-back program
on the 26th of January 2026, Materialise has bought back 1,206,380 shares for a total amount of 6,013,083 EUR (7,006,543 USD)
under the share buy-back program. This corresponds to 2.0% of the total shares outstanding.
Materialise currently holds 1,206,380 of its
own shares.
The overview relating to the share buy-back program
is available on https://investors.materialise.com/ and is 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. |

| | B. | Suspension of the share
buyback program |
Materialise today announces that the program
is suspended following trading on 25 July 2026.
The suspension is required because the authorization
underlying the program cannot be renewed during the applicable closed period. As a result, the Company will not conduct any share repurchases
during this suspension period.
Subject to the renewal of the authorization and
compliance with all applicable legal and regulatory requirements, the Company currently intends to restart the share buyback program
on 31 August 2026.
The Company will issue a further press release
to confirm the restart of the program once the relevant conditions have been satisfied and share repurchases effectively recommence.
This announcement does not constitute an obligation
to resume the share buyback program on any particular date. Any restart of the program will remain subject to the necessary corporate
approvals, market conditions and applicable legal and regulatory requirements.
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.