You don't need to have 50% of voting shares to have significant power over a company, if no one organization has 50% of voting shares. If you have 10% of share

You don't need to have 50% of voting shares to have significant power over a company, if no one organization has 50% of voting shares. If you have 10% of shares and two other organizations have 45% each, and those two organizations have a conflict, you get to choose which of those two organizations has control over the company. Those organizations are both incentivized to make your needs a priority in order to secure your votes. In this situation no single group can choose the destiny of the company without the assistance of one of the other groups.