The current institutional shareholding score of John Marshall Bancorp Inc is 5.00, ranking 165 out of 399 in the Banking Services industry. The latest institutional shareholding proportion is 54.47%, representing a quarter-over-quarter increase of 11.78%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 0.23% of shares outstanding, with 2.72% increase in holdings.