Kenneth Griffin

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Kenneth Cordele Griffin (born 1968) is an American hedge fund manager, entrepreneur and investor. He is the founder, chief executive officer, co-chief investment officer, and 80% owner of Citadel LLC, a multinational hedge fund. He also owns Citadel Securities, one of the largest market makers in the United States. As of January 2026, Griffin had an estimated net worth of $51.2 billion, making him the world's 34th-richest person. In 2015, he made the largest private art deal in history when he bought two paintings, Willem de Kooning's Interchange and Jackson Pollock's Number 17A, for $500 million. Griffin was included in Forbes's 2023 list of the U.S.'s Most Generous Givers, according to which he had donated $1.56 billion to various charitable causes, primarily in education, economic mobility, and medical research. He has also contributed hundreds of millions of dollars to political candidates and causes, usually Republican or conservative in ideology. Griffin is a member of The Business Council.