EQS — PVR: AIXTRON SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe — wide distribution

EQS Voting Rights Announcement: AIXTRON SE AIXTRON SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution 16.10.2026 / 13:00 CET/CEST Dissemination of a Voting Rights Announcement transmitted by 1 EQS News — a service of 2 EQS Group. The issuer is solely responsible for the content of this announcement. ═══════════════════════════════════════════════════════════════════════════ Notification of Major Holdings 1. Details of issuer ┌────────────────────────────────┬──────────────────────┐ │ Name: │ AIXTRON SE │ ├────────────────────────────────┼──────────────────────┤ │ Street: │ Dornkaulstraße 2 │ ├────────────────────────────────┼──────────────────────┤ │ Postal code: │ 52134 │ ├────────────────────────────────┼──────────────────────┤ │ City: │ Herzogenrath │ │ │ Germany │ ├────────────────────────────────┼──────────────────────┤ │ Legal Entity Identifier (LEI): │ 5299004UJ4D51M25LD67 │ └────────────────────────────────┴──────────────────────┘ 2. Reason for notification ┌───┬───────────────────────────────────────────────────┐ │ │ Acquisition/disposal of shares with voting rights │ ├───┼──────────