Mark Malloch-Brown is the current president of the Open Society Foundations. He succeeded Patrick Gaspard in December 2020. 
Previously, he served as UN deputy secretary-general and chief of staff under Kofi Annan. Prior to that, Malloch-Brown was the administrator of the UN Development Program. As a UK minister, he worked in the UK’s Foreign Office, presiding over Africa and Asia as minister of state. He was also once a World Bank vice president.