The Ukraine National Commission on Securities and Stock Market (NSSMC) has brought into force a Regulation that sets uniform requirements for the ownership structure of legal entities and establishes the procedure and conditions for obtaining NSSMC approval for significant participation in professional participants in capital markets and organised commodity markets. The Regulation introduces requirements on ownership structure, related disclosure and business reputation for legal entities applying for or holding a licence, as well as legal entities and individuals that hold, or intend to acquire or increase, significant participation. It also clarifies that licensing conditions for professional activities in the capital markets and organised commodity markets apply only to the extent they do not contradict the new Regulation. Professional participants must bring their ownership structure into line with the new requirements within one year from 1 February 2026.