A percentage is an important screening point, but it does not answer the control question by itself. The Commission identifies indicators of decisive influence such as the power to appoint or remove a majority of a management or supervisory body, influence over strategy, finance, personnel and legal matters, and the ability to use assets or monitor business conduct.
The practical data-room rule is to review voting agreements, trust arrangements, veto rights, appointment rights, loan terms, powers of attorney and intra-group instructions alongside the percentage. A seemingly small holding can, together with these rights, amount to actual control. A negative finding should explain why the listed person cannot exercise decisive influence.