The current institutional shareholding score of aTyr Pharma Ord Shs is 7.00, ranking 80 out of 387 in the Biotechnology & Medical Research industry. The latest institutional shareholding proportion is 88.45%, representing a quarter-over-quarter increase of 43.25%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 0.13% of shares outstanding, with 49.77% decrease in holdings.