The current institutional shareholding score of Catalyst Pharmaceuticals Inc is 10.00, ranking 1 out of 157 in the Pharmaceuticals industry. The latest institutional shareholding proportion is 90.33%, representing a quarter-over-quarter increase of 0.54%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 1.92% of shares outstanding, with 0.13% increase in holdings.