The current institutional shareholding score of Regenxbio Inc is 7.00, ranking 81 out of 388 in the Biotechnology & Medical Research industry. The latest institutional shareholding proportion is 87.72%, representing a quarter-over-quarter increase of 3.42%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 0.59% of shares outstanding, with 0.08% decrease in holdings.