The current institutional shareholding score of Hanover Insurance Group Inc is 10.00, ranking 1 out of 117 in the Insurance industry. The latest institutional shareholding proportion is 101.82%, representing a quarter-over-quarter increase of 11.93%. The largest institutional shareholder is Tom Gayner, holding a total of 254.03K shares, representing 0.80% of shares outstanding, with 0.40% decrease in holdings.