The Luxembourg Commission de Surveillance du Secteur Financier (CSSF) has published a guidance document setting out the minimum documents and information that authorised IFMs must submit for the CSSF’s assessment of their shareholding structure. The minimum package applies both to initial authorisation and to subsequent changes to an authorised IFM’s shareholding structure, covering qualified and non-qualified shareholders. The CSSF may request additional information where appropriate, and from the date of publication it will treat any request or application missing the minimum items as incomplete, with file analysis starting only once a complete application is received.