ECJ: Allocation of voting rights when “Acting in Concert” In a landmark judgment, the ECJ decided that attributing voting rights based on "acting in concert" without an explicit agreement, as in Section 34( 2) Sentence 1 2nd alternative of the Securities Trading Act, is incompatible with EU law. Date of origin25 June 2026CategoriesEuropean Court of JusticeKeywordssecurities, attribution, voting right