Direct owner refers to individuals and entities who directly own shares in any legal entity. For example, if you own 20% of the shares in a particular entity, you become a direct owner. A direct owner need not necessarily be an individual (natural person) and can also be another entity as in the case where the parent company is a direct owner in its direct subsidiary.
A person can be an indirect owner, if a company or any other business entity in which he has shares, owns another company, as illustrated below. For example, if Company 2 is owned to the extent of 20% by Company 1, and Company 1 is owned to the extent of 50% by a natural person, than the said Person is an indirect owner of Company 2 through Company 1, to the extent of 10% ownership in Company 2 (50% of 20%).