European Central Bank Banking Supervision published an updated public list of entities supervised within the Single Supervisory Mechanism, reflecting group-structure changes effective up to 1 January 2026. The publication confirms 112 significant institutions directly supervised by the ECB and also lists less significant institutions subject to national competent authorities’ day-to-day supervision, with indicators for high-impact less significant institutions and for the approval or exemption status of financial and mixed financial holding companies. Changes since the previous update include a series of restructurings and status changes. ProCapital was renamed Arkéa ProCapital Services and Banco BIC Português, S.A. became ABANCA Portugal, S.A.; Mizuho Trust & Banking (Luxembourg) SA merged into State Street Bank International GmbH; Intesa Sanpaolo Bank Ireland Plc merged into Intesa Sanpaolo Bank Luxembourg S.A.; Knab N.V. merged into BAWAG P.S.K.; CA Auto bank GmbH merged into CA Auto bank S.p.A.; and Banca per lo Sviluppo della Cooperazione di Credito S.p.A. merged into ICCREA Banca S.p.A. Sparkasse Haugsdorf’s licence was withdrawn and Sparkasse Haugsdorf AG was authorised as a credit institution and classified as significant within the group headed by Erste Group Bank AG. BNP Paribas Leasing Solutions was classified as a significant supervised entity within the BNP Paribas S.A. group, while the merger of Piraeus Financial Holdings S.A. into Piraeus Bank S.A. made Piraeus Bank the highest-level consolidating entity for a group that remains significant. The list also records several end-December mergers among Finnish cooperative banks, with surviving entities renamed.