You are not counting effects of circular ownership citi owns 5% of Chase and Chase owns 5% of Citi and on and on you effectively don't need 50% to control the v

You are not counting effects of circular ownership citi owns 5% of Chase and Chase owns 5% of Citi and on and on you effectively don't need 50% to control the vote. Even if those 4 are off you can add next two or three with trillion +/- under management. So worst case you need 7 people to collude.