The South African billionaire had 4.69 million shares as of June 26, the Cape Town-based media and technology company said in its annual report on July 24. He had held direct and indirect interest of 16.38 million shares as of March 2014, according to the previous year's publication. The difference between the two holdings is valued at about 20.4 billion rand at current prices. Read also: Koos Bekker targets e-commerce: Naspers's next Tencent Bekker stepped down as CEO in April 2014 to take a yearlong break before becoming chairman earlier this year.