The current institutional shareholding score of Willis Lease Finance Corp is 5.00, ranking 98 out of 161 in the Professional & Commercial Services industry. The latest institutional shareholding proportion is 52.66%, representing a quarter-over-quarter increase of 6.03%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 2.55% of shares outstanding, with 9.20% decrease in holdings.