The current institutional shareholding score of Safety Insurance Group Inc is 10.00, ranking 1 out of 117 in the Insurance industry. The latest institutional shareholding proportion is 97.22%, representing a quarter-over-quarter increase of 16.75%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 0.96% of shares outstanding, with 0.40% increase in holdings.