The current institutional shareholding score of Exelixis Inc is 10.00, ranking 1 out of 386 in the Biotechnology & Medical Research industry. The latest institutional shareholding proportion is 107.76%, representing a quarter-over-quarter increase of 9.40%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 5.40% of shares outstanding, with 1.12% decrease in holdings.