The ownership of a corporation is apportioned by stock; control is apportioned the same way modulo any side-agreements and restrictions. A tech startup founder

The ownership of a corporation is apportioned by stock; control is apportioned the same way modulo any side-agreements and restrictions. A tech startup founder frequently does not own a majority of the issued stock because stock has been traded to investors to provide working funds and capital and allocated to key employees to ensure they have some skin in the game.