SCHEDULE 13D/A

MATERIALISE NV

Ordinary Shares, no nominal value per share · CUSIP: 57667T100

Event date: 2025-10-30

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Wilfried VancraenReported CIK 0001612894

  Shares: 34,021,781.00 · Class: 57.60%

• Hilde Ingelaere

  Shares: 34,021,781.00 · Class: 57.60%

• Idem

  Shares: 33,696,421.00 · Class: 57.05%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.