(1) A person has a shareholding interest in the company if the person is:
(a) the beneficial owner; or
(b) the trustee of a * family trust who is the owner;
of:
(c) * shares in the company; or
(d) an interest in * shares in the company.
(2) A person also has a shareholding interest in the company if:
(a) the person has a shareholding interest in another company; and
(b) the other company has a shareholding interest in the company (including one resulting from any other application or applications of this subsection).