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controlling interest UK US noun [C, usually singular] FINANCE, STOCK MARKET
► if someone has a controlling interest in a company, they own enough shares in it to control its management: have/own/hold a controlling interest (in sth) »
The group holds a 52% controlling interest in the new telecommunications company.
buy/sell a controlling interest »Last year the former CEO sold his controlling interest for more than one billion dollars.
Financial and business terms. 2012.