The current institutional shareholding score of Gran Tierra Energy Inc is 5.00, ranking 44 out of 120 in the Oil & Gas industry. The latest institutional shareholding proportion is 53.40%, representing a quarter-over-quarter increase of 6.51%. The largest institutional shareholder is James Simons, holding a total of 0.00 shares, representing 2.20% of shares outstanding, with 0.16% increase in holdings.