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Investor and financial figure profile

Ken Griffin

Founder and CEO of Citadel.

Profile and relationships last checked .

About Ken Griffin

Griffin began investing from his Harvard dorm room in 1986 and launched a small hedge fund the following year. After graduating in 1989, he founded Citadel in 1990, emphasizing quantitative analysis and software as investment tools. Citadel’s biography identifies him as founder and CEO and describes its institutional investment business. In 2002, he and partners established Citadel Securities, a separate market maker, where he is non-executive chairman. He holds a Harvard economics degree. The two businesses explain his prominence in both investment management and market infrastructure while requiring distinct organizational identities.

Career and perspective

  • Founded Citadel in 1990.
  • Established the separate Citadel Securities business with partners in 2002.

Organizations and relationships

Sources and editorial review

These primary sources support the profile and relationships. Biographies are original summaries; roles may change after the review date.

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