The current institutional shareholding score of Puma Biotechnology Inc is 7.00, ranking 50 out of 155 in the Pharmaceuticals industry. The latest institutional shareholding proportion is 81.56%, representing a quarter-over-quarter increase of 14.60%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 3.82% of shares outstanding, with 0.10% increase in holdings.