Amphastar Pharmaceuticals Inc

The current institutional shareholding score of Amphastar Pharmaceuticals Inc is 7.00, ranking 51 out of 157 in the Pharmaceuticals industry. The latest institutional shareholding proportion is 79.72%, representing a quarter-over-quarter decrease of 6.44%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 1.24% of shares outstanding, with 1.29% decrease in holdings.