The current institutional shareholding score of Siebert Financial Corp is 3.00, ranking 70 out of 120 in the Investment Banking & Investment Services industry. The latest institutional shareholding proportion is 9.98%, representing a quarter-over-quarter increase of 18.91%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 0.05% of shares outstanding, with 6.02% decrease in holdings.