Shareholders in the United Kingdom are people and organisations who buy shares in UK companies. In large companies, such as those on the FTSE100, shareholders are overwhelmingly large institutional investors, such as pension funds, insurance companies, mutual funds or similar foreign organisations. UK shareholders have the most favourable set of rights in the world in their ability to control directors of corporations. UK company law gives shareholders the ability to, Shareholders also owe one another duties, and owe duties under the Stewardship Code to exercise their voting power.