Controlling interest

A controlling interest is an ownership interest in a corporation with enough voting stock shares to prevail in any stockholders' motion. A majority of voting shares (over 50%) is always a controlling interest. When a party holds less than the majority of the voting shares, other present circumstances can be considered to determine whether that party is still considered to hold a controlling ownership interest.[1]

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In the United States, Delaware corporations have a 2/3 vote requirement for a motion to pass. In theory, this could mean that a controlling interest would have to be over two thirds of the voting shares.

A 2019 study published in the Virginia Law Review said dual-class stock structures, common to newly public technology companies, creates governance risks and costs, including the potential loss of economic value for non-voting shares held by public investors.[2][3]