Cant help on this one. I didnt know such a website existed.
What you should find more interesting as an owner, is the turnover rate from year to year. Berkshire has one of the best in corporate America.
Organisations like AUI and ARG with long term owners like the Myer family and Lowy family on the registers are comforting. The low turnover rate is a variable I like. Illiquid, however bad people view it is something I cherish.