5.2. “Control person” means a person that, alone or with other persons acting in concert by virtue of an agreement, holds a sufficient number of the voting rights attached to all outstanding voting securities of an issuer to affect materially the control of the issuer. If the person, alone or with other persons acting in concert by virtue of an agreement, holds more than 20% of those voting rights, the person is presumed to hold a sufficient number of the voting rights to affect materially the control of the issuer.