EQS — PVR: Bilfinger 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: Bilfinger SE Bilfinger SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution 15.10.2026 / 19:09 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: │ Bilfinger SE │ ├────────────────────────────────┼────────────────────────┤ │ Street: │ Oskar-Meixner-Straße 1 │ ├────────────────────────────────┼────────────────────────┤ │ Postal code: │ 68163 │ ├────────────────────────────────┼────────────────────────┤ │ City: │ Mannheim │ │ │ Germany │ ├────────────────────────────────┼────────────────────────┤ │ Legal Entity Identifier (LEI): │ 529900H0HULEN2BZ4604 │ └────────────────────────────────┴────────────────────────┘ 2. Reason for notification ┌───┬────────────────────────────────────────────────────────────────────┐ │ X │ Acquisition/disposal of share