The biggest individual insider shareholder of Apple is Arthur Levinson, who has been the company's chair of the board since 2011. As of Feb. 2, 2021, Levinson owns 4.5 million shares of Apple stock. The biggest institutional shareholder of Apple is The Vanguard Group, which owns 1.3 billion shares, representing 7.8% of total shares outstanding, according to the company's most recent proxy filing, reflecting the number of shares as of Jan. 5, 2021.