Based on the new disclosure requirements for institutional investors, asset managers and proxy advisors introduced in the course of the implementation of Directive (EU) 2017/828, the study deals with the participation-related conflicts of interest of collective asset managers and proxy advisors, their treatment under European and national law to date, and the regulatory system of the Shareholder Rights Directive. On this basis, the question is examined to what extent the area under research requires further regulation. The focus is on the systemisation of the previous as well as the new conflict-related regulatory concept and, following on from this, the channelling of future legislative revisions.