The current institutional shareholding score of Ameresco Inc is 10.00, ranking 1 out of 28 in the Renewable Energy industry. The latest institutional shareholding proportion is 102.77%, representing a quarter-over-quarter decrease of 16.90%. The largest institutional shareholder is Chuck Royce, holding a total of 886.76K shares, representing 2.36% of shares outstanding, with 34.01% decrease in holdings.