The current institutional shareholding score of Edison International is 10.00, ranking 1 out of 66 in the Electric Utilities & IPPs industry. The latest institutional shareholding proportion is 94.42%, representing a quarter-over-quarter increase of 0.66%. The largest institutional shareholder is ETHSX, holding a total of 2.32M shares, representing 0.60% of shares outstanding, with 2234.63% increase in holdings.